/*
* Copyright (c) 2003, 2006, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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*/
package com.sun.rowset;
import java.sql.*;
import javax.sql.*;
import javax.naming.*;
import java.io.*;
import java.math.*;
import java.util.*;
import javax.sql.rowset.*;
/**
* The standard implementation of the <code>JoinRowSet</code>
* interface providing an SQL <code>JOIN</code> between <code>RowSet</code>
* objects.
* <P>
* The implementation provides an ANSI-style <code>JOIN</code> providing an
* inner join between two tables. Any unmatched rows in either table of the
* join are discarded.
* <p>
* Typically, a <code>JoinRowSet</code> implementation is leveraged by
* <code>RowSet</code> instances that are in a disconnected environment and
* thus do not have the luxury of an open connection to the data source to
* establish logical relationships between themselves. In other words, it is
* largely <code>CachedRowSet</code> objects and implementations derived from
* the <code>CachedRowSet</code> interface that will use the <code>JoinRowSetImpl</code>
* implementation.
*
* @author Amit Handa, Jonathan Bruce
*/
public class JoinRowSetImpl extends WebRowSetImpl implements JoinRowSet {
/**
* A <code>Vector</code> object that contains the <code>RowSet</code> objects
* that have been added to this <code>JoinRowSet</code> object.
*/
private Vector vecRowSetsInJOIN;
/**
* The <code>CachedRowSet</code> object that encapsulates this
* <code>JoinRowSet</code> object.
* When <code>RowSet</code> objects are added to this <code>JoinRowSet</code>
* object, they are also added to <i>crsInternal</i> to form the same kind of
* SQL <code>JOIN</code>. As a result, methods for making updates to this
* <code>JoinRowSet</code> object can use <i>crsInternal</i> methods in their
* implementations.
*/
private CachedRowSetImpl crsInternal;
/**
* A <code>Vector</code> object containing the types of join that have been set
* for this <code>JoinRowSet</code> object.
* The last join type set forms the basis of succeeding joins.
*/
private Vector vecJoinType;
/**
* A <code>Vector</code> object containing the names of all the tables entering
* the join.
*/
private Vector vecTableNames;
/**
* An <code>int</code> that indicates the column index of the match column.
*/
private int iMatchKey;
/**
* A <code>String</code> object that stores the name of the match column.
*/
private String strMatchKey ;
/**
* An array of <code>boolean</code> values indicating the types of joins supported
* by this <code>JoinRowSet</code> implementation.
*/
boolean[] supportedJOINs;
/**
* The <code>WebRowSet</code> object that encapsulates this <code>JoinRowSet</code>
* object. This <code>WebRowSet</code> object allows this <code>JoinRowSet</code>
* object to leverage the properties and methods of a <code>WebRowSet</code>
* object.
*/
private WebRowSet wrs;
/**
* Constructor for <code>JoinRowSetImpl</code> class. Configures various internal data
* structures to provide mechanisms required for <code>JoinRowSet</code> interface
* implementation.
*
* @throws SQLException if an error occurs in instantiating an instance of
* <code>JoinRowSetImpl</code>
*/
public JoinRowSetImpl() throws SQLException {
vecRowSetsInJOIN = new Vector();
crsInternal = new CachedRowSetImpl();
vecJoinType = new Vector();
vecTableNames = new Vector();
iMatchKey = -1;
strMatchKey = null;
supportedJOINs =
new boolean[] {false, true, false, false, false};
}
/**
* Adds the given <code>RowSet</code> object to this
* <code>JoinRowSet</code> object. If this
* rowset is the first to be added to the <code>JoinRowSet</code>
* object, it forms the basis for the <code>JOIN</code>
* relationships to be formed.
* <p>
* This method should be used when the given <code>RowSet</code> object
* already has a match column set.
*
* @param rowset the <code>RowSet</code> object that implements the
* <code>Joinable</code> interface and is to be added
* to this <code>JoinRowSet</code> object
* @throws SQLException if an empty <code>RowSet</code> is added to the to the
* <code>JoinRowSet</code>; if a match column is not set; or if an
* additional <code>RowSet</code> violates the active <code>JOIN</code>
* @see CachedRowSet#setMatchColumn
*/
public void addRowSet(Joinable rowset) throws SQLException {
boolean boolColId, boolColName;
boolColId = false;
boolColName = false;
CachedRowSetImpl cRowset;
if(!(rowset instanceof RowSet)) {
throw new SQLException(resBundle.handleGetObject("joinrowsetimpl.notinstance").toString());
}
if(rowset instanceof JdbcRowSetImpl ) {
cRowset = new CachedRowSetImpl();
cRowset.populate((RowSet)rowset);
if(cRowset.size() == 0){
throw new SQLException(resBundle.handleGetObject("joinrowsetimpl.emptyrowset").toString());
}
try {
int matchColumnCount = 0;
for(int i=0; i< rowset.getMatchColumnIndexes().length; i++) {
if(rowset.getMatchColumnIndexes()[i] != -1)
++ matchColumnCount;
else
break;
}
int[] pCol = new int[matchColumnCount];
for(int i=0; i<matchColumnCount; i++)
pCol[i] = rowset.getMatchColumnIndexes()[i];
cRowset.setMatchColumn(pCol);
} catch(SQLException sqle) {
}
} else {
cRowset = (CachedRowSetImpl)rowset;
if(cRowset.size() == 0){
throw new SQLException(resBundle.handleGetObject("joinrowsetimpl.emptyrowset").toString());
}
}
// Either column id or column name will be set
// If both not set throw exception.
try {
iMatchKey = (cRowset.getMatchColumnIndexes())[0];
} catch(SQLException sqle) {
//if not set catch the exception but do nothing now.
boolColId = true;
}
try {
strMatchKey = (cRowset.getMatchColumnNames())[0];
} catch(SQLException sqle) {
//if not set catch the exception but do nothing now.
boolColName = true;
}
if(boolColId && boolColName) {
// neither setter methods have been used to set
throw new SQLException(resBundle.handleGetObject("joinrowsetimpl.matchnotset").toString());
} else {
//if(boolColId || boolColName)
// either of the setter methods have been set.
if(boolColId){
//
ArrayList indices = new ArrayList();
for(int i=0;i<cRowset.getMatchColumnNames().length;i++) {
if( (strMatchKey = (cRowset.getMatchColumnNames())[i]) != null) {
iMatchKey = cRowset.findColumn(strMatchKey);
indices.add(iMatchKey);
}
else
break;
}
int[] indexes = new int[indices.size()];
for(int i=0; i<indices.size();i++)
indexes[i] = ((Integer)indices.get(i)).intValue();
cRowset.setMatchColumn(indexes);
// Set the match column here because join will be
// based on columnId,
// (nested for loop in initJOIN() checks for equality
// based on columnIndex)
} else {
//do nothing, iMatchKey is set.
}
// Now both iMatchKey and strMatchKey have been set pointing
// to the same column
}
// Till first rowset setJoinType may not be set because
// default type is JoinRowSet.INNER_JOIN which should
// be set and for subsequent additions of rowset, if not set
// keep on adding join type as JoinRowSet.INNER_JOIN
// to vecJoinType.
initJOIN(cRowset);
}
/**
* Adds the given <code>RowSet</code> object to the <code>JOIN</code> relation
* and sets the designated column as the match column.
* If the given <code>RowSet</code>
* object is the first to be added to this <code>JoinRowSet</code>
* object, it forms the basis of the <code>JOIN</code> relationship to be formed
* when other <code>RowSet</code> objects are added .
* <P>
* This method should be used when the given <code>RowSet</code> object
* does not already have a match column set.
*
* @param rowset a <code>RowSet</code> object to be added to
* the <code>JOIN</code> relation; must implement the <code>Joinable</code>
* interface
* @param columnIdx an <code>int</code> giving the index of the column to be set as
* the match column
* @throws SQLException if (1) an empty <code>RowSet</code> object is added to this
* <code>JoinRowSet</code> object, (2) a match column has not been set,
* or (3) the <code>RowSet</code> object being added violates the active
* <code>JOIN</code>
* @see CachedRowSet#unsetMatchColumn
*/
public void addRowSet(RowSet rowset, int columnIdx) throws SQLException {
//passing the rowset as well as the columnIdx to form the joinrowset.
((CachedRowSetImpl)rowset).setMatchColumn(columnIdx);
addRowSet((Joinable)rowset);
}
/**
* Adds the given <code>RowSet</code> object to the <code>JOIN</code> relationship
* and sets the designated column as the match column. If the given
* <code>RowSet</code>
* object is the first to be added to this <code>JoinRowSet</code>
* object, it forms the basis of the <code>JOIN</code> relationship to be formed
* when other <code>RowSet</code> objects are added .
* <P>
* This method should be used when the given <code>RowSet</code> object
* does not already have a match column set.
*
* @param rowset a <code>RowSet</code> object to be added to
* the <code>JOIN</code> relation
* @param columnName a <code>String</code> object giving the name of the column
* to be set as the match column; must implement the <code>Joinable</code>
* interface
* @throws SQLException if (1) an empty <code>RowSet</code> object is added to this
* <code>JoinRowSet</code> object, (2) a match column has not been set,
* or (3) the <code>RowSet</code> object being added violates the active
* <code>JOIN</code>
*/
public void addRowSet(RowSet rowset, String columnName) throws SQLException {
//passing the rowset as well as the columnIdx to form the joinrowset.
((CachedRowSetImpl)rowset).setMatchColumn(columnName);
addRowSet((Joinable)rowset);
}
/**
* Adds the given <code>RowSet</code> objects to the <code>JOIN</code> relationship
* and sets the designated columns as the match columns. If the first
* <code>RowSet</code> object in the array of <code>RowSet</code> objects
* is the first to be added to this <code>JoinRowSet</code>
* object, it forms the basis of the <code>JOIN</code> relationship to be formed
* when other <code>RowSet</code> objects are added.
* <P>
* The first <code>int</code>
* in <i>columnIdx</i> is used to set the match column for the first
* <code>RowSet</code> object in <i>rowset</i>, the second <code>int</code>
* in <i>columnIdx</i> is used to set the match column for the second
* <code>RowSet</code> object in <i>rowset</i>, and so on.
* <P>
* This method should be used when the given <code>RowSet</code> objects
* do not already have match columns set.
*
* @param rowset an array of <code>RowSet</code> objects to be added to
* the <code>JOIN</code> relation; each <code>RowSet</code> object must
* implement the <code>Joinable</code> interface
* @param columnIdx an array of <code>int</code> values designating the columns
* to be set as the
* match columns for the <code>RowSet</code> objects in <i>rowset</i>
* @throws SQLException if the number of <code>RowSet</code> objects in
* <i>rowset</i> is not equal to the number of <code>int</code> values
* in <i>columnIdx</i>
*/
public void addRowSet(RowSet[] rowset,
int[] columnIdx) throws SQLException {
//validate if length of rowset array is same as length of int array.
if(rowset.length != columnIdx.length) {
throw new SQLException
(resBundle.handleGetObject("joinrowsetimpl.numnotequal").toString());
} else {
for(int i=0; i< rowset.length; i++) {
((CachedRowSetImpl)rowset[i]).setMatchColumn(columnIdx[i]);
addRowSet((Joinable)rowset[i]);
} //end for
} //end if
}
/**
* Adds the given <code>RowSet</code> objects to the <code>JOIN</code> relationship
* and sets the designated columns as the match columns. If the first
* <code>RowSet</code> object in the array of <code>RowSet</code> objects
* is the first to be added to this <code>JoinRowSet</code>
* object, it forms the basis of the <code>JOIN</code> relationship to be formed
* when other <code>RowSet</code> objects are added.
* <P>
* The first <code>String</code> object
* in <i>columnName</i> is used to set the match column for the first
* <code>RowSet</code> object in <i>rowset</i>, the second <code>String</code>
* object in <i>columnName</i> is used to set the match column for the second
* <code>RowSet</code> object in <i>rowset</i>, and so on.
* <P>
* This method should be used when the given <code>RowSet</code> objects
* do not already have match columns set.
*
* @param rowset an array of <code>RowSet</code> objects to be added to
* the <code>JOIN</code> relation; each <code>RowSet</code> object must
* implement the <code>Joinable</code> interface
* @param columnName an array of <code>String</code> objects designating the columns
* to be set as the
* match columns for the <code>RowSet</code> objects in <i>rowset</i>
* @throws SQLException if the number of <code>RowSet</code> objects in
* <i>rowset</i> is not equal to the number of <code>String</code> objects
* in <i>columnName</i>, an empty <code>JdbcRowSet</code> is added to the
* <code>JoinRowSet</code>, if a match column is not set,
* or one or the <code>RowSet</code> objects in <i>rowset</i> violates the
* active <code>JOIN</code>
*/
public void addRowSet(RowSet[] rowset,
String[] columnName) throws SQLException {
//validate if length of rowset array is same as length of int array.
if(rowset.length != columnName.length) {
throw new SQLException
(resBundle.handleGetObject("joinrowsetimpl.numnotequal").toString());
} else {
for(int i=0; i< rowset.length; i++) {
((CachedRowSetImpl)rowset[i]).setMatchColumn(columnName[i]);
addRowSet((Joinable)rowset[i]);
} //end for
} //end if
}
/**
* Returns a Collection of the <code>RowSet</code> object instances
* currently residing with the instance of the <code>JoinRowSet</code>
* object instance. This should return the 'n' number of RowSet contained
* within the JOIN and maintain any updates that have occoured while in
* this union.
*
* @return A <code>Collection</code> of the added <code>RowSet</code>
* object instances
* @throws SQLException if an error occours generating a collection
* of the originating RowSets contained within the JOIN.
*/
public Collection getRowSets() throws SQLException {
return vecRowSetsInJOIN;
}
/**
* Returns a string array of the RowSet names currently residing
* with the <code>JoinRowSet</code> object instance.
*
* @return a string array of the RowSet names
* @throws SQLException if an error occours retrieving the RowSet names
* @see CachedRowSet#setTableName
*/
public String[] getRowSetNames() throws SQLException {
Object [] arr = vecTableNames.toArray();
String []strArr = new String[arr.length];
for( int i = 0;i < arr.length; i++) {
strArr[i] = arr[i].toString();
}
return strArr;
}
/**
* Creates a separate <code>CachedRowSet</code> object that contains the data
* in this <code>JoinRowSet</code> object.
* <P>
* If any updates or modifications have been applied to this <code>JoinRowSet</code>
* object, the <code>CachedRowSet</code> object returned by this method will
* not be able to persist
* the changes back to the originating rows and tables in the
* data source because the data may be from different tables. The
* <code>CachedRowSet</code> instance returned should not
* contain modification data, such as whether a row has been updated or what the
* original values are. Also, the <code>CachedRowSet</code> object should clear
* its properties pertaining to
* its originating SQL statement. An application should reset the
* SQL statement using the <code>RowSet.setCommand</code> method.
* <p>
* To persist changes back to the data source, the <code>JoinRowSet</code> object
* calls the method <code>acceptChanges</code>. Implementations
* can leverage the internal data and update tracking in their
* implementations to interact with the <code>SyncProvider</code> to persist any
* changes.
*
* @return a <code>CachedRowSet</code> object containing the contents of this
* <code>JoinRowSet</code> object
* @throws SQLException if an error occurs assembling the <code>CachedRowSet</code>
* object
* @see javax.sql.RowSet
* @see javax.sql.rowset.CachedRowSet
* @see javax.sql.rowset.spi.SyncProvider
*/
public CachedRowSet toCachedRowSet() throws SQLException {
return crsInternal;
}
/**
* Returns <code>true</code> if this <code>JoinRowSet</code> object supports
* an SQL <code>CROSS_JOIN</code> and <code>false</code> if it does not.
*
* @return <code>true</code> if the CROSS_JOIN is supported; <code>false</code>
* otherwise
*/
public boolean supportsCrossJoin() {
return supportedJOINs[JoinRowSet.CROSS_JOIN];
}
/**
* Returns <code>true</code> if this <code>JoinRowSet</code> object supports
* an SQL <code>INNER_JOIN</code> and <code>false</code> if it does not.
*
* @return true is the INNER_JOIN is supported; false otherwise
*/
public boolean supportsInnerJoin() {
return supportedJOINs[JoinRowSet.INNER_JOIN];
}
/**
* Returns <code>true</code> if this <code>JoinRowSet</code> object supports
* an SQL <code>LEFT_OUTER_JOIN</code> and <code>false</code> if it does not.
*
* @return true is the LEFT_OUTER_JOIN is supported; false otherwise
*/
public boolean supportsLeftOuterJoin() {
return supportedJOINs[JoinRowSet.LEFT_OUTER_JOIN];
}
/**
* Returns <code>true</code> if this <code>JoinRowSet</code> object supports
* an SQL <code>RIGHT_OUTER_JOIN</code> and <code>false</code> if it does not.
*
* @return true is the RIGHT_OUTER_JOIN is supported; false otherwise
*/
public boolean supportsRightOuterJoin() {
return supportedJOINs[JoinRowSet.RIGHT_OUTER_JOIN];
}
/**
* Returns <code>true</code> if this <code>JoinRowSet</code> object supports
* an SQL <code>FULL_JOIN</code> and <code>false</code> if it does not.
*
* @return true is the FULL_JOIN is supported; false otherwise
*/
public boolean supportsFullJoin() {
return supportedJOINs[JoinRowSet.FULL_JOIN];
}
/**
* Sets the type of SQL <code>JOIN</code> that this <code>JoinRowSet</code>
* object will use. This method
* allows an application to adjust the type of <code>JOIN</code> imposed
* on tables contained within this <code>JoinRowSet</code> object and to do it
* on the fly. The last <code>JOIN</code> type set determines the type of
* <code>JOIN</code> to be performed.
* <P>
* Implementations should throw an <code>SQLException</code> if they do
* not support the given <code>JOIN</code> type.
*
* @param type one of the standard <code>JoinRowSet</code> constants
* indicating the type of <code>JOIN</code>. Must be one of the
* following:
* <code>JoinRowSet.CROSS_JOIN</code>
* <code>JoinRowSet.INNER_JOIN</code>
* <code>JoinRowSet.LEFT_OUTER_JOIN</code>
* <code>JoinRowSet.RIGHT_OUTER_JOIN</code>, or
* <code>JoinRowSet.FULL_JOIN</code>
* @throws SQLException if an unsupported <code>JOIN</code> type is set
*/
public void setJoinType(int type) throws SQLException {
// The join which governs the join of two rowsets is the last
// join set, using setJoinType
if (type >= JoinRowSet.CROSS_JOIN && type <= JoinRowSet.FULL_JOIN) {
if (type != JoinRowSet.INNER_JOIN) {
// This 'if' will be removed after all joins are implemented.
throw new SQLException(resBundle.handleGetObject("joinrowsetimpl.notsupported").toString());
} else {
Integer Intgr = new Integer(JoinRowSet.INNER_JOIN);
vecJoinType.add(Intgr);
}
} else {
throw new SQLException(resBundle.handleGetObject("joinrowsetimpl.notdefined").toString());
} //end if
}
/**
* This checks for a match column for
* whether it exists or not.
*
* @param <code>CachedRowSet</code> object whose match column needs to be checked.
* @throws SQLException if MatchColumn is not set.
*/
private boolean checkforMatchColumn(Joinable rs) throws SQLException {
int[] i = rs.getMatchColumnIndexes();
if (i.length <= 0) {
return false;
}
return true;
}
/**
* Internal initialization of <code>JoinRowSet</code>.
*/
private void initJOIN(CachedRowSet rowset) throws SQLException {
try {
CachedRowSetImpl cRowset = (CachedRowSetImpl)rowset;
// Create a new CachedRowSet object local to this function.
CachedRowSetImpl crsTemp = new CachedRowSetImpl();
RowSetMetaDataImpl rsmd = new RowSetMetaDataImpl();
/* The following 'if block' seems to be always going true.
commenting this out for present
if (!supportedJOINs[1]) {
throw new SQLException(resBundle.handleGetObject("joinrowsetimpl.notsupported").toString());
}
*/
if (vecRowSetsInJOIN.isEmpty() ) {
// implies first cRowset to be added to the Join
// simply add this as a CachedRowSet.
// Also add it to the class variable of type vector
// do not need to check "type" of Join but it should be set.
crsInternal = (CachedRowSetImpl)rowset.createCopy();
crsInternal.setMetaData((RowSetMetaDataImpl)cRowset.getMetaData());
// metadata will also set the MatchColumn.
vecRowSetsInJOIN.add(cRowset);
} else {
// At this point we are ready to add another rowset to 'this' object
// Check the size of vecJoinType and vecRowSetsInJoin
// If nothing is being set, internally call setJoinType()
// to set to JoinRowSet.INNER_JOIN.
// For two rowsets one (valid) entry should be there in vecJoinType
// For three rowsets two (valid) entries should be there in vecJoinType
// Maintain vecRowSetsInJoin = vecJoinType + 1
if( (vecRowSetsInJOIN.size() - vecJoinType.size() ) == 2 ) {
// we are going to add next rowset and setJoinType has not been set
// recently, so set it to setJoinType() to JoinRowSet.INNER_JOIN.
// the default join type
setJoinType(JoinRowSet.INNER_JOIN);
} else if( (vecRowSetsInJOIN.size() - vecJoinType.size() ) == 1 ) {
// do nothing setjoinType() has been set by programmer
}
// Add the table names to the class variable of type vector.
vecTableNames.add(crsInternal.getTableName());
vecTableNames.add(cRowset.getTableName());
// Now we have two rowsets crsInternal and cRowset which need
// to be INNER JOIN'ED to form a new rowset
// Compare table1.MatchColumn1.value1 == { table2.MatchColumn2.value1
// ... upto table2.MatchColumn2.valueN }
// ...
// Compare table1.MatchColumn1.valueM == { table2.MatchColumn2.value1
// ... upto table2.MatchColumn2.valueN }
//
// Assuming first rowset has M rows and second N rows.
int rowCount2 = cRowset.size();
int rowCount1 = crsInternal.size();
// total columns in the new CachedRowSet will be sum of both -1
// (common column)
int matchColumnCount = 0;
for(int i=0; i< crsInternal.getMatchColumnIndexes().length; i++) {
if(crsInternal.getMatchColumnIndexes()[i] != -1)
++ matchColumnCount;
else
break;
}
rsmd.setColumnCount
(crsInternal.getMetaData().getColumnCount() +
cRowset.getMetaData().getColumnCount() - matchColumnCount);
crsTemp.setMetaData(rsmd);
crsInternal.beforeFirst();
cRowset.beforeFirst();
for (int i = 1 ; i <= rowCount1 ; i++) {
if(crsInternal.isAfterLast() ) {
break;
}
if(crsInternal.next()) {
cRowset.beforeFirst();
for(int j = 1 ; j <= rowCount2 ; j++) {
if( cRowset.isAfterLast()) {
break;
}
if(cRowset.next()) {
boolean match = true;
for(int k=0; k<matchColumnCount; k++) {
if (!crsInternal.getObject( crsInternal.getMatchColumnIndexes()[k]).equals
(cRowset.getObject(cRowset.getMatchColumnIndexes()[k]))) {
match = false;
break;
}
}
if (match) {
int p;
int colc = 0; // reset this variable everytime you loop
// re create a JoinRowSet in crsTemp object
crsTemp.moveToInsertRow();
// create a new rowset crsTemp with data from first rowset
for( p=1;
p<=crsInternal.getMetaData().getColumnCount();p++) {
match = false;
for(int k=0; k<matchColumnCount; k++) {
if (p == crsInternal.getMatchColumnIndexes()[k] ) {
match = true;
break;
}
}
if ( !match ) {
crsTemp.updateObject(++colc, crsInternal.getObject(p));
// column type also needs to be passed.
rsmd.setColumnName
(colc, crsInternal.getMetaData().getColumnName(p));
rsmd.setTableName(colc, crsInternal.getTableName());
rsmd.setColumnType(p, crsInternal.getMetaData().getColumnType(p));
rsmd.setAutoIncrement(p, crsInternal.getMetaData().isAutoIncrement(p));
rsmd.setCaseSensitive(p, crsInternal.getMetaData().isCaseSensitive(p));
rsmd.setCatalogName(p, crsInternal.getMetaData().getCatalogName(p));
rsmd.setColumnDisplaySize(p, crsInternal.getMetaData().getColumnDisplaySize(p));
rsmd.setColumnLabel(p, crsInternal.getMetaData().getColumnLabel(p));
rsmd.setColumnType(p, crsInternal.getMetaData().getColumnType(p));
rsmd.setColumnTypeName(p, crsInternal.getMetaData().getColumnTypeName(p));
rsmd.setCurrency(p,crsInternal.getMetaData().isCurrency(p) );
rsmd.setNullable(p, crsInternal.getMetaData().isNullable(p));
rsmd.setPrecision(p, crsInternal.getMetaData().getPrecision(p));
rsmd.setScale(p, crsInternal.getMetaData().getScale(p));
rsmd.setSchemaName(p, crsInternal.getMetaData().getSchemaName(p));
rsmd.setSearchable(p, crsInternal.getMetaData().isSearchable(p));
rsmd.setSigned(p, crsInternal.getMetaData().isSigned(p));
} else {
// will happen only once, for that merged column pass
// the types as OBJECT, if types not equal
crsTemp.updateObject(++colc, crsInternal.getObject(p));
rsmd.setColumnName(colc, crsInternal.getMetaData().getColumnName(p));
rsmd.setTableName
(colc, crsInternal.getTableName()+
"#"+
cRowset.getTableName());
rsmd.setColumnType(p, crsInternal.getMetaData().getColumnType(p));
rsmd.setAutoIncrement(p, crsInternal.getMetaData().isAutoIncrement(p));
rsmd.setCaseSensitive(p, crsInternal.getMetaData().isCaseSensitive(p));
rsmd.setCatalogName(p, crsInternal.getMetaData().getCatalogName(p));
rsmd.setColumnDisplaySize(p, crsInternal.getMetaData().getColumnDisplaySize(p));
rsmd.setColumnLabel(p, crsInternal.getMetaData().getColumnLabel(p));
rsmd.setColumnType(p, crsInternal.getMetaData().getColumnType(p));
rsmd.setColumnTypeName(p, crsInternal.getMetaData().getColumnTypeName(p));
rsmd.setCurrency(p,crsInternal.getMetaData().isCurrency(p) );
rsmd.setNullable(p, crsInternal.getMetaData().isNullable(p));
rsmd.setPrecision(p, crsInternal.getMetaData().getPrecision(p));
rsmd.setScale(p, crsInternal.getMetaData().getScale(p));
rsmd.setSchemaName(p, crsInternal.getMetaData().getSchemaName(p));
rsmd.setSearchable(p, crsInternal.getMetaData().isSearchable(p));
rsmd.setSigned(p, crsInternal.getMetaData().isSigned(p));
//don't do ++colc in the above statement
} //end if
} //end for
// append the rowset crsTemp, with data from second rowset
for(int q=1;
q<= cRowset.getMetaData().getColumnCount();q++) {
match = false;
for(int k=0; k<matchColumnCount; k++) {
if (q == cRowset.getMatchColumnIndexes()[k] ) {
match = true;
break;
}
}
if ( !match ) {
crsTemp.updateObject(++colc, cRowset.getObject(q));
rsmd.setColumnName
(colc, cRowset.getMetaData().getColumnName(q));
rsmd.setTableName(colc, cRowset.getTableName());
/**
* This will happen for a special case scenario. The value of 'p'
* will always be one more than the number of columns in the first
* rowset in the join. So, for a value of 'q' which is the number of
* columns in the second rowset that participates in the join.
* So decrement value of 'p' by 1 else `p+q-1` will be out of range.
**/
//if((p+q-1) > ((crsInternal.getMetaData().getColumnCount()) +
// (cRowset.getMetaData().getColumnCount()) - 1)) {
// --p;
//}
rsmd.setColumnType(p+q-1, cRowset.getMetaData().getColumnType(q));
rsmd.setAutoIncrement(p+q-1, cRowset.getMetaData().isAutoIncrement(q));
rsmd.setCaseSensitive(p+q-1, cRowset.getMetaData().isCaseSensitive(q));
rsmd.setCatalogName(p+q-1, cRowset.getMetaData().getCatalogName(q));
rsmd.setColumnDisplaySize(p+q-1, cRowset.getMetaData().getColumnDisplaySize(q));
rsmd.setColumnLabel(p+q-1, cRowset.getMetaData().getColumnLabel(q));
rsmd.setColumnType(p+q-1, cRowset.getMetaData().getColumnType(q));
rsmd.setColumnTypeName(p+q-1, cRowset.getMetaData().getColumnTypeName(q));
rsmd.setCurrency(p+q-1,cRowset.getMetaData().isCurrency(q) );
rsmd.setNullable(p+q-1, cRowset.getMetaData().isNullable(q));
rsmd.setPrecision(p+q-1, cRowset.getMetaData().getPrecision(q));
rsmd.setScale(p+q-1, cRowset.getMetaData().getScale(q));
rsmd.setSchemaName(p+q-1, cRowset.getMetaData().getSchemaName(q));
rsmd.setSearchable(p+q-1, cRowset.getMetaData().isSearchable(q));
rsmd.setSigned(p+q-1, cRowset.getMetaData().isSigned(q));
}
else {
--p;
}
}
crsTemp.insertRow();
crsTemp.moveToCurrentRow();
} else {
// since not equa12
// so do nothing
} //end if
// bool1 = cRowset.next();
}
} // end inner for
//bool2 = crsInternal.next();
}
} //end outer for
crsTemp.setMetaData(rsmd);
crsTemp.setOriginal();
// Now the join is done.
// Make crsInternal = crsTemp, to be ready for next merge, if at all.
int[] pCol = new int[matchColumnCount];
for(int i=0; i<matchColumnCount; i++)
pCol[i] = crsInternal.getMatchColumnIndexes()[i];
crsInternal = (CachedRowSetImpl)crsTemp.createCopy();
// Because we add the first rowset as crsInternal to the
// merged rowset, so pCol will point to the Match column.
// until reset, am not sure we should set this or not(?)
// if this is not set next inner join won't happen
// if we explicitly do not set a set MatchColumn of
// the new crsInternal.
crsInternal.setMatchColumn(pCol);
// Add the merged rowset to the class variable of type vector.
crsInternal.setMetaData(rsmd);
vecRowSetsInJOIN.add(cRowset);
} //end if
} catch(SQLException sqle) {
// %%% Exception should not dump here:
sqle.printStackTrace();
throw new SQLException(resBundle.handleGetObject("joinrowsetimpl.initerror").toString() + sqle);
} catch (Exception e) {
e.printStackTrace();
throw new SQLException(resBundle.handleGetObject("joinrowsetimpl.genericerr").toString() + e);
}
}
/**
* Return a SQL-like description of the <code>WHERE</code> clause being used
* in a <code>JoinRowSet</code> object instance. An implementation can describe
* the <code>WHERE</code> clause of the SQL <code>JOIN</code> by supplying a <code>SQL</code>
* strings description of <code>JOIN</code> or provide a textual description to assist
* applications using a <code>JoinRowSet</code>.
*
* @return whereClause a textual or SQL descripition of the logical
* <code>WHERE</code> cluase used in the <code>JoinRowSet</code> instance
* @throws SQLException if an error occurs in generating a representation
* of the <code>WHERE</code> clause.
*/
public String getWhereClause() throws SQLException {
String strWhereClause = "Select ";
String whereClause;
String tabName= null;
String strTabName = null;
int sz,cols;
int j;
CachedRowSetImpl crs;
// get all the column(s) names from each rowset.
// append them with their tablenames i.e. tableName.columnName
// Select tableName1.columnName1,..., tableNameX.columnNameY
// from tableName1,...tableNameX where
// tableName1.(rowset1.getMatchColumnName()) ==
// tableName2.(rowset2.getMatchColumnName()) + "and" +
// tableNameX.(rowsetX.getMatchColumnName()) ==
// tableNameZ.(rowsetZ.getMatchColumnName()));
tabName = new String();
strTabName = new String();
sz = vecRowSetsInJOIN.size();
for(int i=0;i<sz; i++) {
crs = (CachedRowSetImpl)vecRowSetsInJOIN.get(i);
cols = crs.getMetaData().getColumnCount();
tabName = tabName.concat(crs.getTableName());
strTabName = strTabName.concat(tabName+", ");
j = 1;
while(j<cols) {
strWhereClause = strWhereClause.concat
(tabName+"."+crs.getMetaData().getColumnName(j++));
strWhereClause = strWhereClause.concat(", ");
} //end while
} //end for
// now remove the last ","
strWhereClause = strWhereClause.substring
(0, strWhereClause.lastIndexOf(","));
// Add from clause
strWhereClause = strWhereClause.concat(" from ");
// Add the table names.
strWhereClause = strWhereClause.concat(strTabName);
//Remove the last ","
strWhereClause = strWhereClause.substring
(0, strWhereClause.lastIndexOf(","));
// Add the where clause
strWhereClause = strWhereClause.concat(" where ");
// Get the match columns
// rowset1.getMatchColumnName() == rowset2.getMatchColumnName()
for(int i=0;i<sz; i++) {
strWhereClause = strWhereClause.concat(
((CachedRowSetImpl)vecRowSetsInJOIN.get(i)).getMatchColumnNames()[0]);
if(i%2!=0) {
strWhereClause = strWhereClause.concat("=");
} else {
strWhereClause = strWhereClause.concat(" and");
}
strWhereClause = strWhereClause.concat(" ");
}
return strWhereClause;
}
/**
* Moves the cursor down one row from its current position and
* returns <code>true</code> if the new cursor position is a
* valid row.
* The cursor for a new <code>ResultSet</code> object is initially
* positioned before the first row. The first call to the method
* <code>next</code> moves the cursor to the first row, making it
* the current row; the second call makes the second row the
* current row, and so on.
*
* <P>If an input stream from the previous row is open, it is
* implicitly closed. The <code>ResultSet</code> object's warning
* chain is cleared when a new row is read.
*
* @return <code>true</code> if the new current row is valid;
* <code>false</code> if there are no more rows
* @throws SQLException if an error occurs or
* the cursor is not positioned in the rowset, before
* the first row, or after the last row
*/
public boolean next() throws SQLException {
return crsInternal.next();
}
/**
* Releases the current contents of this rowset, discarding outstanding
* updates. The rowset contains no rows after the method
* <code>release</code> is called. This method sends a
* <code>RowSetChangedEvent</code> object to all registered listeners prior
* to returning.
*
* @throws SQLException if an error occurs
*/
public void close() throws SQLException {
crsInternal.close();
}
/**
* Reports whether the last column read was SQL <code>NULL</code>.
* Note that you must first call the method <code>getXXX</code>
* on a column to try to read its value and then call the method
* <code>wasNull</code> to determine whether the value was
* SQL <code>NULL</code>.
*
* @return <code>true</code> if the value in the last column read
* was SQL <code>NULL</code>; <code>false</code> otherwise
* @throws SQLException if an error occurs
*/
public boolean wasNull() throws SQLException {
return crsInternal.wasNull();
}
/**
* Retrieves the value of the designated column in the current row
* of this <code>JoinRowSetImpl</code> object as a
* <code>String</code> object.
*
* @param columnIndex the first column is <code>1</code>, the second
* is <code>2</code>, and so on; must be <code>1</code> or larger
* and equal to or less than the number of columns in the rowset
* @return the column value; if the value is SQL <code>NULL</code>, the
* result is <code>null</code>
* @throws SQLException if the given column index is out of bounds or
* the cursor is not on a valid row
*/
public String getString(int columnIndex) throws SQLException {
return crsInternal.getString(columnIndex);
}
/**
* Retrieves the value of the designated column in the current row
* of this <code>JoinRowSetImpl</code> object as a
* <code>boolean</code> value.
*
* @param columnIndex the first column is <code>1</code>, the second
* is <code>2</code>, and so on; must be <code>1</code> or larger
* and equal to or less than the number of columns in the rowset
* @return the column value; if the value is SQL <code>NULL</code>, the
* result is <code>false</code>
* @throws SQLException if the given column index is out of bounds,
* the cursor is not on a valid row, or this method fails
*/
public boolean getBoolean(int columnIndex) throws SQLException {
return crsInternal.getBoolean(columnIndex);
}
/**
* Retrieves the value of the designated column in the current row
* of this <code>JoinRowSetImpl</code> object as a
* <code>byte</code> value.
*
* @param columnIndex the first column is <code>1</code>, the second
* is <code>2</code>, and so on; must be <code>1</code> or larger
* and equal to or less than the number of columns in the rowset
* @return the column value; if the value is SQL <code>NULL</code>, the
* result is <code>0</code>
* @throws SQLException if the given column index is out of bounds,
* the cursor is not on a valid row, or this method fails
*/
public byte getByte(int columnIndex) throws SQLException {
return crsInternal.getByte(columnIndex);
}
/**
* Retrieves the value of the designated column in the current row
* of this <code>JoinRowSetImpl</code> object as a
* <code>short</code> value.
*
* @param columnIndex the first column is <code>1</code>, the second
* is <code>2</code>, and so on; must be <code>1</code> or larger
* and equal to or less than the number of columns in the rowset
* @return the column value; if the value is SQL <code>NULL</code>, the
* result is <code>0</code>
* @throws SQLException if the given column index is out of bounds,
* the cursor is not on a valid row, or this method fails
*/
public short getShort(int columnIndex) throws SQLException {
return crsInternal.getShort(columnIndex);
}
/**
* Retrieves the value of the designated column in the current row
* of this <code>JoinRowSetImpl</code> object as a
* <code>short</code> value.
*
* @param columnIndex the first column is <code>1</code>, the second
* is <code>2</code>, and so on; must be <code>1</code> or larger
* and equal to or less than the number of columns in the rowset
* @return the column value; if the value is SQL <code>NULL</code>, the
* result is <code>0</code>
* @throws SQLException if the given column index is out of bounds,
* the cursor is not on a valid row, or this method fails
*/
public int getInt(int columnIndex) throws SQLException {
return crsInternal.getInt(columnIndex);
}
/**
* Retrieves the value of the designated column in the current row
* of this <code>JoinRowSetImpl</code> object as a
* <code>long</code> value.
*
* @param columnIndex the first column is <code>1</code>, the second
* is <code>2</code>, and so on; must be <code>1</code> or larger
* and equal to or less than the number of columns in the rowset
* @return the column value; if the value is SQL <code>NULL</code>, the
* result is <code>0</code>
* @throws SQLException if the given column index is out of bounds,
* the cursor is not on a valid row, or this method fails
*/
public long getLong(int columnIndex) throws SQLException {
return crsInternal.getLong(columnIndex);
}
/**
* Retrieves the value of the designated column in the current row
* of this <code>JoinRowSetImpl</code> object as a
* <code>float</code> value.
*
* @param columnIndex the first column is <code>1</code>, the second
* is <code>2</code>, and so on; must be <code>1</code> or larger
* and equal to or less than the number of columns in the rowset
* @return the column value; if the value is SQL <code>NULL</code>, the
* result is <code>0</code>
* @throws SQLException if the given column index is out of bounds,
* the cursor is not on a valid row, or this method fails
*/
public float getFloat(int columnIndex) throws SQLException {
return crsInternal.getFloat(columnIndex);
}
/**
* Retrieves the value of the designated column in the current row
* of this <code>JoinRowSetImpl</code> object as a
* <code>double</code> value.
*
* @param columnIndex the first column is <code>1</code>, the second
* is <code>2</code>, and so on; must be <code>1</code> or larger
* and equal to or less than the number of columns in the rowset
* @return the column value; if the value is SQL <code>NULL</code>, the
* result is <code>0</code>
* @throws SQLException if the given column index is out of bounds,
* the cursor is not on a valid row, or this method fails
*/
public double getDouble(int columnIndex) throws SQLException {
return crsInternal.getDouble(columnIndex);
}
/**
* Retrieves the value of the designated column in the current row
* of this <code>JoinRowSetImpl</code> object as a
* <code>java.math.BigDecimal</code> object.
* <P>
* This method is deprecated; use the version of <code>getBigDecimal</code>
* that does not take a scale parameter and returns a value with full
* precision.
*
* @param columnIndex the first column is <code>1</code>, the second
* is <code>2</code>, and so on; must be <code>1</code> or larger
* and equal to or less than the number of columns in the rowset
* @param scale the number of digits to the right of the decimal point in the
* value returned
* @return the column value with the specified number of digits to the right
* of the decimal point; if the value is SQL <code>NULL</code>, the
* result is <code>null</code>
* @throws SQLException if the given column index is out of bounds,
* the cursor is not on a valid row, or this method fails
* @deprecated
*/
public BigDecimal getBigDecimal(int columnIndex, int scale) throws SQLException {
return crsInternal.getBigDecimal(columnIndex);
}
/**
* Retrieves the value of the designated column in the current row
* of this <code>JoinRowSetImpl</code> object as a
* <code>byte array</code> value.
*
* @param columnIndex the first column is <code>1</code>, the second
* is <code>2</code>, and so on; must be <code>1</code> or larger
* and equal to or less than the number of columns in the rowset
* @return the column value; if the value is SQL <code>NULL</code>, the
* result is <code>null</code>
* @throws SQLException if the given column index is out of bounds,
* the cursor is not on a valid row, or the the value to be
* retrieved is not binary
*/
public byte[] getBytes(int columnIndex) throws SQLException {
return crsInternal.getBytes(columnIndex);
}
/**
* Retrieves the value of the designated column in the current row
* of this <code>JoinRowSetImpl</code> object as a
* <code>java.sql.Date</code> object.
*
* @param columnIndex the first column is <code>1</code>, the second
* is <code>2</code>, and so on; must be <code>1</code> or larger
* and equal to or less than the number of columns in the rowset
* @return the column value; if the value is SQL <code>NULL</code>, the
* result is <code>null</code>
* @throws SQLException if the given column index is out of bounds,
* the cursor is not on a valid row, or this method fails
*/
public java.sql.Date getDate(int columnIndex) throws SQLException {
return crsInternal.getDate(columnIndex);
}
/**
* Retrieves the value of the designated column in the current row
* of this <code>JoinRowSetImpl</code> object as a
* <code>java.sql.Time</code> object.
*
* @param columnIndex the first column is <code>1</code>, the second
* is <code>2</code>, and so on; must be <code>1</code> or larger
* and equal to or less than the number of columns in the rowset
* @return the column value; if the value is SQL <code>NULL</code>, the
* result is <code>null</code>
* @throws SQLException if the given column index is out of bounds,
* the cursor is not on a valid row, or this method fails
*/
public java.sql.Time getTime(int columnIndex) throws SQLException {
return crsInternal.getTime(columnIndex);
}
/**
* Retrieves the value of the designated column in the current row
* of this <code>JoinRowSetImpl</code> object as a
* <code>java.sql.Timestamp</code> object.
*
* @param columnIndex the first column is <code>1</code>, the second
* is <code>2</code>, and so on; must be <code>1</code> or larger
* and equal to or less than the number of columns in the rowset
* @return the column value; if the value is SQL <code>NULL</code>, the
* result is <code>null</code>
* @throws SQLException if the given column index is out of bounds,
* the cursor is not on a valid row, or this method fails
*/
public java.sql.Timestamp getTimestamp(int columnIndex) throws SQLException {
return crsInternal.getTimestamp(columnIndex);
}
/**
* Retrieves the value of the designated column in the current row
* of this <code>JoinRowSetImpl</code> object as a
* <code>java.sql.Timestamp</code> object.
*
* @param columnIndex the first column is <code>1</code>, the second
* is <code>2</code>, and so on; must be <code>1</code> or larger
* and equal to or less than the number of columns in the rowset
* @return the column value; if the value is SQL <code>NULL</code>, the
* result is <code>null</code>
* @throws SQLException if the given column index is out of bounds,
* the cursor is not on a valid row, or this method fails
*/
public java.io.InputStream getAsciiStream(int columnIndex) throws SQLException {
return crsInternal.getAsciiStream(columnIndex);
}
/**
* A column value can be retrieved as a stream of Unicode characters
* and then read in chunks from the stream. This method is particularly
* suitable for retrieving large LONGVARCHAR values. The JDBC driver will
* do any necessary conversion from the database format into Unicode.
*
* <P><B>Note:</B> All the data in the returned stream must be
* read prior to getting the value of any other column. The next
* call to a get method implicitly closes the stream. . Also, a
* stream may return 0 for available() whether there is data
* available or not.
*
* @param columnIndex the first column is <code>1</code>, the second
* is <code>2</code>, and so on; must be <code>1</code> or larger
* and equal to or less than the number of columns in this rowset
* @return a Java input stream that delivers the database column value
* as a stream of two byte Unicode characters. If the value is SQL NULL
* then the result is null.
* @throws SQLException if an error occurs
* @deprecated
*/
public java.io.InputStream getUnicodeStream(int columnIndex) throws SQLException {
return crsInternal.getUnicodeStream(columnIndex);
}
/**
* A column value can be retrieved as a stream of uninterpreted bytes
* and then read in chunks from the stream. This method is particularly
* suitable for retrieving large LONGVARBINARY values.
*
* <P><B>Note:</B> All the data in the returned stream must be
* read prior to getting the value of any other column. The next
* call to a get method implicitly closes the stream. Also, a
* stream may return 0 for available() whether there is data
* available or not.
*
* @param columnIndex the first column is <code>1</code>, the second
* is <code>2</code>, and so on; must be <code>1</code> or larger
* and equal to or less than the number of columns in the rowset
* @return a Java input stream that delivers the database column value
* as a stream of uninterpreted bytes. If the value is SQL NULL
* then the result is null.
* @throws SQLException if an error occurs
*/
public java.io.InputStream getBinaryStream(int columnIndex) throws SQLException {
return crsInternal.getBinaryStream(columnIndex);
}
// ColumnName methods
/**
* Retrieves the value stored in the designated column
* of the current row as a <code>String</code> object.
*
* @param columnName a <code>String</code> object giving the SQL name of
* a column in this <code>JoinRowSetImpl</code> object
* @return the column value; if the value is SQL <code>NULL</code>,
* the result is <code>null</code>
* @throws SQLException if the given column name does not match one of
* this rowset's column names or the cursor is not on one of
* this rowset's rows or its insert row
*/
public String getString(String columnName) throws SQLException {
return crsInternal.getString(columnName);
}
/**
* Retrieves the value stored in the designated column
* of the current row as a <code>boolean</code> value.
*
* @param columnName a <code>String</code> object giving the SQL name of
* a column in this <code>JoinRowSetImpl</code> object
* @return the column value; if the value is SQL <code>NULL</code>,
* the result is <code>false</code>
* @throws SQLException if the given column name does not match one of
* this rowset's column names or the cursor is not on one of
* this rowset's rows or its insert row
*/
public boolean getBoolean(String columnName) throws SQLException {
return crsInternal.getBoolean(columnName);
}
/**
* Retrieves the value stored in the designated column
* of the current row as a <code>byte</code> value.
*
* @param columnName a <code>String</code> object giving the SQL name of
* a column in this <code>JoinRowSetImpl</code> object
* @return the column value; if the value is SQL <code>NULL</code>,
* the result is <code>0</code>
* @throws SQLException if the given column name does not match one of
* this rowset's column names or the cursor is not on one of
* this rowset's rows or its insert row
*/
public byte getByte(String columnName) throws SQLException {
return crsInternal.getByte(columnName);
}
/**
* Retrieves the value stored in the designated column
* of the current row as a <code>short</code> value.
*
* @param columnName a <code>String</code> object giving the SQL name of
* a column in this <code>JoinRowSetImpl</code> object
* @return the column value; if the value is SQL <code>NULL</code>,
* the result is <code>0</code>
* @throws SQLException if the given column name does not match one of
* this rowset's column names or the cursor is not on one of
* this rowset's rows or its insert row
*/
public short getShort(String columnName) throws SQLException {
return crsInternal.getShort(columnName);
}
/**
* Retrieves the value stored in the designated column
* of the current row as an <code>int</code> value.
*
* @param columnName a <code>String</code> object giving the SQL name of
* a column in this <code>JoinRowSetImpl</code> object
* @return the column value; if the value is SQL <code>NULL</code>,
* the result is <code>0</code>
* @throws SQLException if the given column name does not match one of
* this rowset's column names or the cursor is not on one of
* this rowset's rows or its insert row
*/
public int getInt(String columnName) throws SQLException {
return crsInternal.getInt(columnName);
}
/**
* Retrieves the value stored in the designated column
* of the current row as a <code>long</code> value.
*
* @param columnName a <code>String</code> object giving the SQL name of
* a column in this <code>JoinRowSetImpl</code> object
* @return the column value; if the value is SQL <code>NULL</code>,
* the result is <code>0</code>
* @throws SQLException if the given column name does not match one of
* this rowset's column names or the cursor is not on one of
* this rowset's rows or its insert row
*/
public long getLong(String columnName) throws SQLException {
return crsInternal.getLong(columnName);
}
/**
* Retrieves the value stored in the designated column
* of the current row as a <code>float</code> value.
*
* @param columnName a <code>String</code> object giving the SQL name of
* a column in this <code>JoinRowSetImpl</code> object
* @return the column value; if the value is SQL <code>NULL</code>,
* the result is <code>0</code>
* @throws SQLException if the given column name does not match one of
* this rowset's column names or the cursor is not on one of
* this rowset's rows or its insert row
*/
public float getFloat(String columnName) throws SQLException {
return crsInternal.getFloat(columnName);
}
/**
* Retrieves the value stored in the designated column
* of the current row as a <code>double</code> value.
*
* @param columnName a <code>String</code> object giving the SQL name of
* a column in this <code>JoinRowSetImpl</code> object
* @return the column value; if the value is SQL <code>NULL</code>,
* the result is <code>0</code>
* @throws SQLException if the given column name does not match one of
* this rowset's column names or the cursor is not on one of
* this rowset's rows or its insert row
*/
public double getDouble(String columnName) throws SQLException {
return crsInternal.getDouble(columnName);
}
/**
* Retrieves the value stored in the designated column
* of the current row as a <code>java.math.BigDecimal</code> object.
*
* @param columnName a <code>String</code> object giving the SQL name of
* a column in this <code>JoinRowSetImpl</code> object
* @param scale the number of digits to the right of the decimal point
* @return the column value; if the value is SQL <code>NULL</code>,
* the result is <code>null</code>
* @throws SQLException if the given column name does not match one of
* this rowset's column names or the cursor is not on one of
* this rowset's rows or its insert row
* @deprecated use the method <code>getBigDecimal(String columnName)</code>
* instead
*/
public BigDecimal getBigDecimal(String columnName, int scale) throws SQLException {
return crsInternal.getBigDecimal(columnName);
}
/**
* Retrieves the value stored in the designated column
* of the current row as a byte array.
* The bytes represent the raw values returned by the driver.
*
* @param columnName a <code>String</code> object giving the SQL name of
* a column in this <code>JoinRowSetImpl</code> object
* @return the column value; if the value is SQL <code>NULL</code>,
* the result is <code>null</code>
* @throws SQLException if the given column name does not match one of
* this rowset's column names or the cursor is not on one of
* this rowset's rows or its insert row
*/
public byte[] getBytes(String columnName) throws SQLException {
return crsInternal.getBytes(columnName);
}
/**
* Retrieves the value stored in the designated column
* of the current row as a <code>java.sql.Date</code> object.
*
* @param columnName a <code>String</code> object giving the SQL name of
* a column in this <code>JoinRowSetImpl</code> object
* @return the column value; if the value is SQL <code>NULL</code>,
* the result is <code>null</code>
* @throws SQLException if the given column name does not match one of
* this rowset's column names or the cursor is not on one of
* this rowset's rows or its insert row
*/
public java.sql.Date getDate(String columnName) throws SQLException {
return crsInternal.getDate(columnName);
}
/**
* Retrieves the value stored in the designated column
* of the current row as a <code>java.sql.Time</code> object.
*
* @param columnName a <code>String</code> object giving the SQL name of
* a column in this <code>JoinRowSetImpl</code> object
* @return the column value; if the value is SQL <code>NULL</code>,
* the result is <code>null</code>
* @throws SQLException if the given column name does not match one of
* this rowset's column names or the cursor is not on one of
* this rowset's rows or its insert row
*/
public java.sql.Time getTime(String columnName) throws SQLException {
return crsInternal.getTime(columnName);
}
/**
* Retrieves the value stored in the designated column
* of the current row as a <code>java.sql.Timestamp</code> object.
*
* @param columnName a <code>String</code> object giving the SQL name of
* a column in this <code>JoinRowSetImpl</code> object
* @return the column value; if the value is SQL <code>NULL</code>,
* the result is <code>null</code>
* @throws SQLException if the given column name does not match one of
* this rowset's column names or the cursor is not on one of
* this rowset's rows or its insert row
*/
public java.sql.Timestamp getTimestamp(String columnName) throws SQLException {
return crsInternal.getTimestamp(columnName);
}
/**
* This method is not supported, and it will throw an
* <code>UnsupportedOperationException</code> if it is called.
* <P>
* A column value can be retrieved as a stream of ASCII characters
* and then read in chunks from the stream. This method is particularly
* suitable for retrieving large LONGVARCHAR values. The JDBC driver will
* do any necessary conversion from the database format into ASCII format.
*
* <P><B>Note:</B> All the data in the returned stream must
* be read prior to getting the value of any other column. The
* next call to a <code>getXXX</code> method implicitly closes the stream.
*
* @param columnName a <code>String</code> object giving the SQL name of
* a column in this <code>JoinRowSetImpl</code> object
* @return a Java input stream that delivers the database column value
* as a stream of one-byte ASCII characters. If the value is SQL
* <code>NULL</code>, the result is <code>null</code>.
* @throws UnsupportedOperationException if this method is called
*/
public java.io.InputStream getAsciiStream(String columnName) throws SQLException {
return crsInternal.getAsciiStream(columnName);
}
/**
* Retrieves the value stored in the designated column
* of the current row as a <code>java.io.InputStream</code> object.
* A column value can be retrieved as a stream of Unicode characters
* and then read in chunks from the stream. This method is particularly
* suitable for retrieving large <code>LONGVARCHAR</code> values.
* The JDBC driver will do any necessary conversion from the database
* format into Unicode.
*
* <P><B>Note:</B> All the data in the returned stream must
* be read prior to getting the value of any other column. The
* next call to a <code>getXXX</code> method implicitly closes the stream.
*
* @param columnName a <code>String</code> object giving the SQL name of
* a column in this <code>JoinRowSetImpl</code> object
* @return a Java input stream that delivers the database column value
* as a stream of two-byte Unicode characters. If the value is
* SQL <code>NULL</code>, the result is <code>null</code>.
* @throws SQLException if the given column name does not match one of
* this rowset's column names or the cursor is not on one of
* this rowset's rows or its insert row
* @deprecated use the method <code>getCharacterStream</code> instead
*/
public java.io.InputStream getUnicodeStream(String columnName) throws SQLException {
return crsInternal.getUnicodeStream(columnName);
}
/**
* Retrieves the value stored in the designated column
* of the current row as a <code>java.io.InputStream</code> object.
* A column value can be retrieved as a stream of uninterpreted bytes
* and then read in chunks from the stream. This method is particularly
* suitable for retrieving large <code>LONGVARBINARY</code> values.
*
* <P><B>Note:</B> All the data in the returned stream must
* be read prior to getting the value of any other column. The
* next call to a get method implicitly closes the stream.
*
* @param columnName a <code>String</code> object giving the SQL name of
* a column in this <code>JoinRowSetImpl</code> object
* @return a Java input stream that delivers the database column value
* as a stream of uninterpreted bytes. If the value is SQL
* <code>NULL</code>, the result is <code>null</code>.
* @throws SQLException if the given column name does not match one of
* this rowset's column names or the cursor is not on one of
* this rowset's rows or its insert row
*/
public java.io.InputStream getBinaryStream(String columnName) throws SQLException {
return crsInternal.getBinaryStream(columnName);
}
/* The first warning reported by calls on this <code>JoinRowSetImpl</code>
* object is returned. Subsequent <code>JoinRowSetImpl</code> warnings will
* be chained to this <code>SQLWarning</code>.
*
* <P>The warning chain is automatically cleared each time a new
* row is read.
*
* <P><B>Note:</B> This warning chain only covers warnings caused
* by <code>ResultSet</code> methods. Any warning caused by statement
* methods (such as reading OUT parameters) will be chained on the
* <code>Statement</code> object.
*
* @return the first SQLWarning or null
* @throws UnsupportedOperationException if this method is called
*/
public SQLWarning getWarnings() {
return crsInternal.getWarnings();
}
/**
* Throws an <code>UnsupportedOperationException</code> if called.
* <P>
* After a call to this method, the <code>getWarnings</code> method
* returns <code>null</code> until a new warning is reported for this
* <code>JoinRowSetImpl</code> object.
*
* @throws UnsupportedOperationException if this method is called
*/
public void clearWarnings() {
crsInternal.clearWarnings();
}
/**
* Retrieves the name of the SQL cursor used by this
* <code>JoinRowSetImpl</code> object.
*
* <P>In SQL, a result table is retrieved through a cursor that is
* named. The current row of a result can be updated or deleted
* using a positioned update/delete statement that references the
* cursor name. To insure that the cursor has the proper isolation
* level to support an update operation, the cursor's <code>SELECT</code>
* statement should be of the form 'select for update'. If the 'for update'
* clause is omitted, positioned updates may fail.
*
* <P>JDBC supports this SQL feature by providing the name of the
* SQL cursor used by a <code>ResultSet</code> object. The current row
* of a result set is also the current row of this SQL cursor.
*
* <P><B>Note:</B> If positioned updates are not supported, an
* <code>SQLException</code> is thrown.
*
* @return the SQL cursor name for this <code>JoinRowSetImpl</code> object's
* cursor
* @throws SQLException if an error occurs
*/
public String getCursorName() throws SQLException {
return crsInternal.getCursorName();
}
/**
* Retrieves the <code>ResultSetMetaData</code> object that contains
* information about this <code>CachedRowsSet</code> object. The
* information includes the number of columns, the data type for each
* column, and other properties for each column.
*
* @return the <code>ResultSetMetaData</code> object that describes this
* <code>JoinRowSetImpl</code> object's columns
* @throws SQLException if an error occurs
*/
public ResultSetMetaData getMetaData() throws SQLException {
return crsInternal.getMetaData();
}
/**
* Retrieves the value of the designated column in the current row
* of this <code>JoinRowSetImpl</code> object as an
* <code>Object</code> value.
* <P>
* The type of the <code>Object</code> will be the default
* Java object type corresponding to the column's SQL type,
* following the mapping for built-in types specified in the JDBC
* specification.
* <P>
* This method may also be used to read datatabase-specific
* abstract data types.
* <P>
* This implementation of the method <code>getObject</code> extends its
* behavior so that it gets the attributes of an SQL structured type as
* as an array of <code>Object</code> values. This method also custom
* maps SQL user-defined types to classes in the Java programming language.
* When the specified column contains
* a structured or distinct value, the behavior of this method is as
* if it were a call to the method <code>getObject(columnIndex,
* this.getStatement().getConnection().getTypeMap())</code>.
*
* @param columnIndex the first column is <code>1</code>, the second
* is <code>2</code>, and so on; must be <code>1</code> or larger
* and equal to or less than the number of columns in the rowset
* @return a <code>java.lang.Object</code> holding the column value;
* if the value is SQL <code>NULL</code>, the result is <code>null</code>
* @throws SQLException if the given column index is out of bounds,
* the cursor is not on a valid row, or there is a problem getting
* the <code>Class</code> object for a custom mapping
* @since 1.2
*/
public Object getObject(int columnIndex) throws SQLException {
return crsInternal.getObject(columnIndex);
}
/**
* Retrieves the value of the designated column in the current row
* of this <code>JoinRowSetImpl</code> object as an
* <code>Object</code> value.
* <P>
* The type of the <code>Object</code> will be the default
* Java object type corresponding to the column's SQL type,
* following the mapping for built-in types specified in the JDBC
* specification.
* <P>
* This method may also be used to read datatabase-specific
* abstract data types.
* <P>
* This implementation of the method <code>getObject</code> extends its
* behavior so that it gets the attributes of an SQL structured type as
* as an array of <code>Object</code> values. This method also custom
* maps SQL user-defined types to classes
* in the Java programming language. When the specified column contains
* a structured or distinct value, the behavior of this method is as
* if it were a call to the method <code>getObject(columnIndex,
* this.getStatement().getConnection().getTypeMap())</code>.
*
* @param columnIndex the first column is <code>1</code>, the second
* is <code>2</code>, and so on; must be <code>1</code> or larger
* and equal to or less than the number of columns in the rowset
* @param map a <code>java.util.Map</code> object showing the mapping
* from SQL type names to classes in the Java programming
* language
* @return a <code>java.lang.Object</code> holding the column value;
* if the value is SQL <code>NULL</code>, the result is
* <code>null</code>
* @throws SQLException if (1) the given column name does not match
* one of this rowset's column names, (2) the cursor is not
* on a valid row, or (3) there is a problem getting
* the <code>Class</code> object for a custom mapping
*/
public Object getObject(int columnIndex,
java.util.Map<String,Class<?>> map)
throws SQLException {
return crsInternal.getObject(columnIndex, map);
}
/**
* Retrieves the value of the designated column in the current row
* of this <code>JoinRowSetImpl</code> object as an
* <code>Object</code> value.
* <P>
* The type of the <code>Object</code> will be the default
* Java object type corresponding to the column's SQL type,
* following the mapping for built-in types specified in the JDBC
* specification.
* <P>
* This method may also be used to read datatabase-specific
* abstract data types.
* <P>
* This implementation of the method <code>getObject</code> extends its
* behavior so that it gets the attributes of an SQL structured type as
* as an array of <code>Object</code> values. This method also custom
* maps SQL user-defined types to classes
* in the Java programming language. When the specified column contains
* a structured or distinct value, the behavior of this method is as
* if it were a call to the method <code>getObject(columnIndex,
* this.getStatement().getConnection().getTypeMap())</code>.
*
* @param columnName a <code>String</code> object that must match the
* SQL name of a column in this rowset, ignoring case
* @return a <code>java.lang.Object</code> holding the column value;
* if the value is SQL <code>NULL</code>, the result is
* <code>null</code>
* @throws SQLException if (1) the given column name does not match
* one of this rowset's column names, (2) the cursor is not
* on a valid row, or (3) there is a problem getting
* the <code>Class</code> object for a custom mapping
*/
public Object getObject(String columnName) throws SQLException {
return crsInternal.getObject(columnName);
}
/**
* Retrieves the value of the designated column in this
* <code>JoinRowSetImpl</code> object as an <code>Object</code> in
* the Java programming lanugage, using the given
* <code>java.util.Map</code> object to custom map the value if
* appropriate.
*
* @param columnName a <code>String</code> object that must match the
* SQL name of a column in this rowset, ignoring case
* @param map a <code>java.util.Map</code> object showing the mapping
* from SQL type names to classes in the Java programming
* language
* @return an <code>Object</code> representing the SQL value
* @throws SQLException if the given column index is out of bounds or
* the cursor is not on one of this rowset's rows or its
* insert row
*/
public Object getObject(String columnName,
java.util.Map<String,Class<?>> map)
throws SQLException {
return crsInternal.getObject(columnName, map);
}
/**
* Retrieves the value stored in the designated column
* of the current row as a <code>java.io.Reader</code> object.
*
* <P><B>Note:</B> All the data in the returned stream must
* be read prior to getting the value of any other column. The
* next call to a <code>getXXX</code> method implicitly closes the stream.
*
* @param columnIndex the first column is <code>1</code>, the second
* is <code>2</code>, and so on; must be <code>1</code> or larger
* and equal to or less than the number of columns in the rowset
* @return a Java character stream that delivers the database column value
* as a <code>java.io.Reader</code> object. If the value is
* SQL <code>NULL</code>, the result is <code>null</code>.
* @throws SQLException if the given column index is out of bounds,
* the cursor is not on a valid row, or there is a type mismatch
*/
public java.io.Reader getCharacterStream(int columnIndex) throws SQLException {
return crsInternal.getCharacterStream(columnIndex);
}
/**
* Retrieves the value stored in the designated column
* of the current row as a <code>java.io.Reader</code> object.
*
* <P><B>Note:</B> All the data in the returned stream must
* be read prior to getting the value of any other column. The
* next call to a <code>getXXX</code> method implicitly closes the stream.
*
* @param columnName a <code>String</code> object giving the SQL name of
* a column in this <code>JoinRowSetImpl</code> object
* @return a Java input stream that delivers the database column value
* as a stream of two-byte Unicode characters. If the value is
* SQL <code>NULL</code>, the result is <code>null</code>.
* @throws SQLException if the given column index is out of bounds,
* the cursor is not on a valid row, or there is a type mismatch
*/
public java.io.Reader getCharacterStream(String columnName) throws SQLException {
return crsInternal.getCharacterStream(columnName);
}
/**
* Retrieves the value of the designated column in the current row
* of this <code>JoinRowSetImpl</code> object as a
* <code>java.math.BigDecimal</code> object.
*
* @param columnIndex the first column is <code>1</code>, the second
* is <code>2</code>, and so on; must be <code>1</code> or larger
* and equal to or less than the number of columns in the rowset
* @return a <code>java.math.BigDecimal</code> value with full precision;
* if the value is SQL <code>NULL</code>, the result is <code>null</code>
* @throws SQLException if the given column index is out of bounds,
* the cursor is not on a valid row, or this method fails
*/
public BigDecimal getBigDecimal(int columnIndex) throws SQLException {
return crsInternal.getBigDecimal(columnIndex);
}
/**
* Retrieves the value of the designated column in the current row
* of this <code>JoinRowSetImpl</code> object as a
* <code>java.math.BigDecimal</code> object.
*
* @param columnName a <code>String</code> object that must match the
* SQL name of a column in this rowset, ignoring case
* @return a <code>java.math.BigDecimal</code> value with full precision;
* if the value is SQL <code>NULL</code>, the result is <code>null</code>
* @throws SQLException if the given column index is out of bounds,
* the cursor is not on a valid row, or this method fails
*/
public BigDecimal getBigDecimal(String columnName) throws SQLException {
return crsInternal.getBigDecimal(columnName);
}
/**
* Returns the number of rows in this <code>JoinRowSetImpl</code> object.
*
* @return number of rows in the rowset
*/
public int size() {
return crsInternal.size();
}
/**
* Indicates whether the cursor is before the first row in this
* <code>JoinRowSetImpl</code> object.
*
* @return <code>true</code> if the cursor is before the first row;
* <code>false</code> otherwise or if the rowset contains no rows
* @throws SQLException if an error occurs
*/
public boolean isBeforeFirst() throws SQLException {
return crsInternal.isBeforeFirst();
}
/**
* Indicates whether the cursor is after the last row in this
* <code>JoinRowSetImpl</code> object.
*
* @return <code>true</code> if the cursor is after the last row;
* <code>false</code> otherwise or if the rowset contains no rows
* @throws SQLException if an error occurs
*/
public boolean isAfterLast() throws SQLException {
return crsInternal.isAfterLast();
}
/**
* Indicates whether the cursor is on the first row in this
* <code>JoinRowSetImpl</code> object.
*
* @return <code>true</code> if the cursor is on the first row;
* <code>false</code> otherwise or if the rowset contains no rows
* @throws SQLException if an error occurs
*/
public boolean isFirst() throws SQLException {
return crsInternal.isFirst();
}
/**
* Indicates whether the cursor is on the last row in this
* <code>JoinRowSetImpl</code> object.
* <P>
* Note: Calling the method <code>isLast</code> may be expensive
* because the JDBC driver might need to fetch ahead one row in order
* to determine whether the current row is the last row in this rowset.
*
* @return <code>true</code> if the cursor is on the last row;
* <code>false</code> otherwise or if this rowset contains no rows
* @throws SQLException if an error occurs
*/
public boolean isLast() throws SQLException {
return crsInternal.isLast();
}
/**
* Moves this <code>JoinRowSetImpl</code> object's cursor to the front of
* the rowset, just before the first row. This method has no effect if
* this rowset contains no rows.
*
* @throws SQLException if an error occurs or the type of this rowset
* is <code>ResultSet.TYPE_FORWARD_ONLY</code>
*/
public void beforeFirst() throws SQLException {
crsInternal.beforeFirst();
}
/**
* Moves this <code>JoinRowSetImpl</code> object's cursor to the end of
* the rowset, just after the last row. This method has no effect if
* this rowset contains no rows.
*
* @throws SQLException if an error occurs
*/
public void afterLast() throws SQLException {
crsInternal.afterLast();
}
/**
* Moves this <code>JoinRowSetImpl</code> object's cursor to the first row
* and returns <code>true</code> if the operation was successful. This
* method also notifies registered listeners that the cursor has moved.
*
* @return <code>true</code> if the cursor is on a valid row;
* <code>false</code> otherwise or if there are no rows in this
* <code>JoinRowSetImpl</code> object
* @throws SQLException if the type of this rowset
* is <code>ResultSet.TYPE_FORWARD_ONLY</code>
*/
public boolean first() throws SQLException {
return crsInternal.first();
}
/**
* Moves this <code>JoinRowSetImpl</code> object's cursor to the last row
* and returns <code>true</code> if the operation was successful. This
* method also notifies registered listeners that the cursor has moved.
*
* @return <code>true</code> if the cursor is on a valid row;
* <code>false</code> otherwise or if there are no rows in this
* <code>JoinRowSetImpl</code> object
* @throws SQLException if the type of this rowset
* is <code>ResultSet.TYPE_FORWARD_ONLY</code>
*/
public boolean last() throws SQLException {
return crsInternal.last();
}
/**
* Returns the number of the current row in this <code>JoinRowSetImpl</code>
* object. The first row is number 1, the second number 2, and so on.
*
* @return the number of the current row; <code>0</code> if there is no
* current row
* @throws SQLException if an error occurs
*/
public int getRow() throws SQLException {
return crsInternal.getRow();
}
/**
* Moves this <code>JoinRowSetImpl</code> object's cursor to the row number
* specified.
*
* <p>If the number is positive, the cursor moves to an absolute row with
* respect to the beginning of the rowset. The first row is row 1, the second
* is row 2, and so on. For example, the following command, in which
* <code>crs</code> is a <code>JoinRowSetImpl</code> object, moves the cursor
* to the fourth row, starting from the beginning of the rowset.
* <PRE><code>
*
* crs.absolute(4);
*
* </code> </PRE>
* <P>
* If the number is negative, the cursor moves to an absolute row position
* with respect to the end of the rowset. For example, calling
* <code>absolute(-1)</code> positions the cursor on the last row,
* <code>absolute(-2)</code> moves it on the next-to-last row, and so on.
* If the <code>JoinRowSetImpl</code> object <code>crs</code> has five rows,
* the following command moves the cursor to the fourth-to-last row, which
* in the case of a rowset with five rows, is also the second row, counting
* from the beginning.
* <PRE><code>
*
* crs.absolute(-4);
*
* </code> </PRE>
*
* If the number specified is larger than the number of rows, the cursor
* will move to the position after the last row. If the number specified
* would move the cursor one or more rows before the first row, the cursor
* moves to the position before the first row.
* <P>
* Note: Calling <code>absolute(1)</code> is the same as calling the
* method <code>first()</code>. Calling <code>absolute(-1)</code> is the
* same as calling <code>last()</code>.
*
* @param row a positive number to indicate the row, starting row numbering from
* the first row, which is <code>1</code>; a negative number to indicate
* the row, starting row numbering from the last row, which is
* <code>-1</code>; must not be <code>0</code>
* @return <code>true</code> if the cursor is on the rowset; <code>false</code>
* otherwise
* @throws SQLException if the given cursor position is <code>0</code> or the
* type of this rowset is <code>ResultSet.TYPE_FORWARD_ONLY</code>
*/
public boolean absolute(int row) throws SQLException {
return crsInternal.absolute(row);
}
/**
* Moves the cursor the specified number of rows from the current
* position, with a positive number moving it forward and a
* negative number moving it backward.
* <P>
* If the number is positive, the cursor moves the specified number of
* rows toward the end of the rowset, starting at the current row.
* For example, the following command, in which
* <code>crs</code> is a <code>JoinRowSetImpl</code> object with 100 rows,
* moves the cursor forward four rows from the current row. If the
* current row is 50, the cursor would move to row 54.
* <PRE><code>
*
* crs.relative(4);
*
* </code> </PRE>
* <P>
* If the number is negative, the cursor moves back toward the beginning
* the specified number of rows, starting at the current row.
* For example, calling the method
* <code>absolute(-1)</code> positions the cursor on the last row,
* <code>absolute(-2)</code> moves it on the next-to-last row, and so on.
* If the <code>JoinRowSetImpl</code> object <code>crs</code> has five rows,
* the following command moves the cursor to the fourth-to-last row, which
* in the case of a rowset with five rows, is also the second row
* from the beginning.
* <PRE><code>
*
* crs.absolute(-4);
*
* </code> </PRE>
*
* If the number specified is larger than the number of rows, the cursor
* will move to the position after the last row. If the number specified
* would move the cursor one or more rows before the first row, the cursor
* moves to the position before the first row. In both cases, this method
* throws an <code>SQLException</code>.
* <P>
* Note: Calling <code>absolute(1)</code> is the same as calling the
* method <code>first()</code>. Calling <code>absolute(-1)</code> is the
* same as calling <code>last()</code>. Calling <code>relative(0)</code>
* is valid, but it does not change the cursor position.
*
* @param rows an <code>int</code> indicating the number of rows to move
* the cursor, starting at the current row; a positive number
* moves the cursor forward; a negative number moves the cursor
* backward; must not move the cursor past the valid
* rows
* @return <code>true</code> if the cursor is on a row in this
* <code>JoinRowSetImpl</code> object; <code>false</code>
* otherwise
* @throws SQLException if there are no rows in this rowset, the cursor is
* positioned either before the first row or after the last row, or
* the rowset is type <code>ResultSet.TYPE_FORWARD_ONLY</code>
*/
public boolean relative(int rows) throws SQLException {
return crsInternal.relative(rows);
}
/**
* Moves this <code>JoinRowSetImpl</code> object's cursor to the
* previous row and returns <code>true</code> if the cursor is on
* a valid row or <code>false</code> if it is not.
* This method also notifies all listeners registered with this
* <code>JoinRowSetImpl</code> object that its cursor has moved.
* <P>
* Note: calling the method <code>previous()</code> is not the same
* as calling the method <code>relative(-1)</code>. This is true
* because it is possible to call <code>previous()</code> from the insert
* row, from after the last row, or from the current row, whereas
* <code>relative</code> may only be called from the current row.
* <P>
* The method <code>previous</code> may used in a <code>while</code>
* loop to iterate through a rowset starting after the last row
* and moving toward the beginning. The loop ends when <code>previous</code>
* returns <code>false</code>, meaning that there are no more rows.
* For example, the following code fragment retrieves all the data in
* the <code>JoinRowSetImpl</code> object <code>crs</code>, which has
* three columns. Note that the cursor must initially be positioned
* after the last row so that the first call to the method
* <code>previous</code> places the cursor on the last line.
* <PRE> <code>
*
* crs.afterLast();
* while (previous()) {
* String name = crs.getString(1);
* int age = crs.getInt(2);
* short ssn = crs.getShort(3);
* System.out.println(name + " " + age + " " + ssn);
* }
*
* </code> </PRE>
* This method throws an <code>SQLException</code> if the cursor is not
* on a row in the rowset, before the first row, or after the last row.
*
* @return <code>true</code> if the cursor is on a valid row;
* <code>false</code> if it is before the first row or after the
* last row
* @throws SQLException if the cursor is not on a valid position or the
* type of this rowset is <code>ResultSet.TYPE_FORWARD_ONLY</code>
*/
public boolean previous() throws SQLException {
return crsInternal.previous();
}
/**
* Returns the index of the column whose name is <i>columnName</i>.
*
* @param columnName a <code>String</code> object giving the name of the
* column for which the index will be returned; the name must
* match the SQL name of a column in this <code>JoinRowSet</code>
* object, ignoring case
* @throws SQLException if the given column name does not match one of the
* column names for this <code>JoinRowSet</code> object
*/
public int findColumn(String columnName) throws SQLException {
return crsInternal.findColumn(columnName);
}
/**
* Indicates whether the current row of this <code>JoinRowSetImpl</code>
* object has been updated. The value returned
* depends on whether this rowset can detect updates: <code>false</code>
* will always be returned if it does not detect updates.
*
* @return <code>true</code> if the row has been visibly updated
* by the owner or another and updates are detected;
* <code>false</code> otherwise
* @throws SQLException if the cursor is on the insert row or not
* on a valid row
*
* @see DatabaseMetaData#updatesAreDetected
*/
public boolean rowUpdated() throws SQLException {
return crsInternal.rowUpdated();
}
/**
* Indicates whether the designated column of the current row of
* this <code>JoinRowSetImpl</code> object has been updated. The
* value returned depends on whether this rowset can detcted updates:
* <code>false</code> will always be returned if it does not detect updates.
*
* @return <code>true</code> if the column updated
* <code>false</code> otherwse
* @throws SQLException if the cursor is on the insert row or not
* on a valid row
* @see DatabaseMetaData#updatesAreDetected
*/
public boolean columnUpdated(int indexColumn) throws SQLException {
return crsInternal.columnUpdated(indexColumn);
}
/**
* Indicates whether the current row has been inserted. The value returned
* depends on whether or not the rowset can detect visible inserts.
*
* @return <code>true</code> if a row has been inserted and inserts are detected;
* <code>false</code> otherwise
* @throws SQLException if the cursor is on the insert row or not
* not on a valid row
*
* @see DatabaseMetaData#insertsAreDetected
*/
public boolean rowInserted() throws SQLException {
return crsInternal.rowInserted();
}
/**
* Indicates whether the current row has been deleted. A deleted row
* may leave a visible "hole" in a rowset. This method can be used to
* detect such holes if the rowset can detect deletions. This method
* will always return <code>false</code> if this rowset cannot detect
* deletions.
*
* @return <code>true</code> if (1)the current row is blank, indicating that
* the row has been deleted, and (2)deletions are detected;
* <code>false</code> otherwise
* @throws SQLException if the cursor is on a valid row in this rowset
* @see DatabaseMetaData#deletesAreDetected
*/
public boolean rowDeleted() throws SQLException {
return crsInternal.rowDeleted();
}
/**
* Sets the designated nullable column in the current row or the
* insert row of this <code>JoinRowSetImpl</code> object with
* <code>null</code> value.
* <P>
* This method updates a column value in the current row or the insert
* row of this rowset; however, another method must be called to complete
* the update process. If the cursor is on a row in the rowset, the
* method {@link #updateRow} must be called to mark the row as updated
* and to notify listeners that the row has changed.
* If the cursor is on the insert row, the method {@link #insertRow}
* must be called to insert the new row into this rowset and to notify
* listeners that a row has changed.
* <P>
* In order to propagate updates in this rowset to the underlying
* data source, an application must call the method acceptChanges
* after it calls either <code>updateRow</code> or <code>insertRow</code>.
*
* @param columnIndex the first column is <code>1</code>, the second
* is <code>2</code>, and so on; must be <code>1</code> or larger
* and equal to or less than the number of columns in this rowset
* @throws SQLException if (1) the given column index is out of bounds,
* (2) the cursor is not on one of this rowset's rows or its
* insert row, or (3) this rowset is
* <code>ResultSet.CONCUR_READ_ONLY</code>
*/
public void updateNull(int columnIndex) throws SQLException {
crsInternal.updateNull(columnIndex);
}
/**
* Sets the designated column in either the current row or the insert
* row of this <code>JoinRowSetImpl</code> object with the given
* <code>boolean</code> value.
* <P>
* This method updates a column value in the current row or the insert
* row of this rowset, but it does not update the database.
* If the cursor is on a row in the rowset, the
* method {@link #updateRow} must be called to update the database.
* If the cursor is on the insert row, the method {@link #insertRow}
* must be called, which will insert the new row into both this rowset
* and the database. Both of these methods must be called before the
* cursor moves to another row.
*
* @param columnIndex the first column is <code>1</code>, the second
* is <code>2</code>, and so on; must be <code>1</code> or larger
* and equal to or less than the number of columns in this rowset
* @param x the new column value
* @throws SQLException if (1) the given column index is out of bounds,
* (2) the cursor is not on one of this rowset's rows or its
* insert row, or (3) this rowset is
* <code>ResultSet.CONCUR_READ_ONLY</code>
*/
public void updateBoolean(int columnIndex, boolean x) throws SQLException {
crsInternal.updateBoolean(columnIndex, x);
}
/**
* Sets the designated column in either the current row or the insert
* row of this <code>JoinRowSetImpl</code> object with the given
* <code>byte</code> value.
* <P>
* This method updates a column value in the current row or the insert
* row of this rowset, but it does not update the database.
* If the cursor is on a row in the rowset, the
* method {@link #updateRow} must be called to update the database.
* If the cursor is on the insert row, the method {@link #insertRow}
* must be called, which will insert the new row into both this rowset
* and the database. Both of these methods must be called before the
* cursor moves to another row.
*
* @param columnIndex the first column is <code>1</code>, the second
* is <code>2</code>, and so on; must be <code>1</code> or larger
* and equal to or less than the number of columns in this rowset
* @param x the new column value
* @throws SQLException if (1) the given column index is out of bounds,
* (2) the cursor is not on one of this rowset's rows or its
* insert row, or (3) this rowset is
* <code>ResultSet.CONCUR_READ_ONLY</code>
*/
public void updateByte(int columnIndex, byte x) throws SQLException {
crsInternal.updateByte(columnIndex, x);
}
/**
* Sets the designated column in either the current row or the insert
* row of this <code>JoinRowSetImpl</code> object with the given
* <code>short</code> value.
* <P>
* This method updates a column value in the current row or the insert
* row of this rowset, but it does not update the database.
* If the cursor is on a row in the rowset, the
* method {@link #updateRow} must be called to update the database.
* If the cursor is on the insert row, the method {@link #insertRow}
* must be called, which will insert the new row into both this rowset
* and the database. Both of these methods must be called before the
* cursor moves to another row.
*
* @param columnIndex the first column is <code>1</code>, the second
* is <code>2</code>, and so on; must be <code>1</code> or larger
* and equal to or less than the number of columns in this rowset
* @param x the new column value
* @throws SQLException if (1) the given column index is out of bounds,
* (2) the cursor is not on one of this rowset's rows or its
* insert row, or (3) this rowset is
* <code>ResultSet.CONCUR_READ_ONLY</code>
*/
public void updateShort(int columnIndex, short x) throws SQLException {
crsInternal.updateShort(columnIndex, x);
}
/**
* Sets the designated column in either the current row or the insert
* row of this <code>JoinRowSetImpl</code> object with the given
* <code>int</code> value.
* <P>
* This method updates a column value in the current row or the insert
* row of this rowset, but it does not update the database.
* If the cursor is on a row in the rowset, the
* method {@link #updateRow} must be called to update the database.
* If the cursor is on the insert row, the method {@link #insertRow}
* must be called, which will insert the new row into both this rowset
* and the database. Both of these methods must be called before the
* cursor moves to another row.
*
* @param columnIndex the first column is <code>1</code>, the second
* is <code>2</code>, and so on; must be <code>1</code> or larger
* and equal to or less than the number of columns in this rowset
* @param x the new column value
* @throws SQLException if (1) the given column index is out of bounds,
* (2) the cursor is not on one of this rowset's rows or its
* insert row, or (3) this rowset is
* <code>ResultSet.CONCUR_READ_ONLY</code>
*/
public void updateInt(int columnIndex, int x) throws SQLException {
crsInternal.updateInt(columnIndex, x);
}
/**
* Sets the designated column in either the current row or the insert
* row of this <code>JoinRowSetImpl</code> object with the given
* <code>long</code> value.
* <P>
* This method updates a column value in the current row or the insert
* row of this rowset, but it does not update the database.
* If the cursor is on a row in the rowset, the
* method {@link #updateRow} must be called to update the database.
* If the cursor is on the insert row, the method {@link #insertRow}
* must be called, which will insert the new row into both this rowset
* and the database. Both of these methods must be called before the
* cursor moves to another row.
*
* @param columnIndex the first column is <code>1</code>, the second
* is <code>2</code>, and so on; must be <code>1</code> or larger
* and equal to or less than the number of columns in this rowset
* @param x the new column value
* @throws SQLException if (1) the given column index is out of bounds,
* (2) the cursor is not on one of this rowset's rows or its
* insert row, or (3) this rowset is
* <code>ResultSet.CONCUR_READ_ONLY</code>
*/
public void updateLong(int columnIndex, long x) throws SQLException {
crsInternal.updateLong(columnIndex, x);
}
/**
* Sets the designated column in either the current row or the insert
* row of this <code>JoinRowSetImpl</code> object with the given
* <code>float</code> value.
* <P>
* This method updates a column value in the current row or the insert
* row of this rowset, but it does not update the database.
* If the cursor is on a row in the rowset, the
* method {@link #updateRow} must be called to update the database.
* If the cursor is on the insert row, the method {@link #insertRow}
* must be called, which will insert the new row into both this rowset
* and the database. Both of these methods must be called before the
* cursor moves to another row.
*
* @param columnIndex the first column is <code>1</code>, the second
* is <code>2</code>, and so on; must be <code>1</code> or larger
* and equal to or less than the number of columns in this rowset
* @param x the new column value
* @throws SQLException if (1) the given column index is out of bounds,
* (2) the cursor is not on one of this rowset's rows or its
* insert row, or (3) this rowset is
* <code>ResultSet.CONCUR_READ_ONLY</code>
*/
public void updateFloat(int columnIndex, float x) throws SQLException {
crsInternal.updateFloat(columnIndex, x);
}
/**
* Sets the designated column in either the current row or the insert
* row of this <code>JoinRowSetImpl</code> object with the given
* <code>double</code> value.
*
* This method updates a column value in either the current row or
* the insert row of this rowset, but it does not update the
* database. If the cursor is on a row in the rowset, the
* method {@link #updateRow} must be called to update the database.
* If the cursor is on the insert row, the method {@link #insertRow}
* must be called, which will insert the new row into both this rowset
* and the database. Both of these methods must be called before the
* cursor moves to another row.
*
* @param columnIndex the first column is <code>1</code>, the second
* is <code>2</code>, and so on; must be <code>1</code> or larger
* and equal to or less than the number of columns in this rowset
* @param x the new column value
* @throws SQLException if (1) the given column index is out of bounds,
* (2) the cursor is not on one of this rowset's rows or its
* insert row, or (3) this rowset is
* <code>ResultSet.CONCUR_READ_ONLY</code>
*/
public void updateDouble(int columnIndex, double x) throws SQLException {
crsInternal.updateDouble(columnIndex, x);
}
/**
* Sets the designated column in either the current row or the insert
* row of this <code>JoinRowSetImpl</code> object with the given
* <code>java.math.BigDecimal</code> object.
* <P>
* This method updates a column value in the current row or the insert
* row of this rowset, but it does not update the database.
* If the cursor is on a row in the rowset, the
* method {@link #updateRow} must be called to update the database.
* If the cursor is on the insert row, the method {@link #insertRow}
* must be called, which will insert the new row into both this rowset
* and the database. Both of these methods must be called before the
* cursor moves to another row.
*
* @param columnIndex the first column is <code>1</code>, the second
* is <code>2</code>, and so on; must be <code>1</code> or larger
* and equal to or less than the number of columns in this rowset
* @param x the new column value
* @throws SQLException if (1) the given column index is out of bounds,
* (2) the cursor is not on one of this rowset's rows or its
* insert row, or (3) this rowset is
* <code>ResultSet.CONCUR_READ_ONLY</code>
*/
public void updateBigDecimal(int columnIndex, BigDecimal x) throws SQLException {
crsInternal.updateBigDecimal(columnIndex, x);
}
/**
* Sets the designated column in either the current row or the insert
* row of this <code>JoinRowSetImpl</code> object with the given
* <code>String</code> object.
* <P>
* This method updates a column value in either the current row or
* the insert row of this rowset, but it does not update the
* database. If the cursor is on a row in the rowset, the
* method {@link #updateRow} must be called to mark the row as updated.
* If the cursor is on the insert row, the method {@link #insertRow}
* must be called to insert the new row into this rowset and mark it
* as inserted. Both of these methods must be called before the
* cursor moves to another row.
* <P>
* The method <code>acceptChanges</code> must be called if the
* updated values are to be written back to the underlying database.
*
* @param columnIndex the first column is <code>1</code>, the second
* is <code>2</code>, and so on; must be <code>1</code> or larger
* and equal to or less than the number of columns in this rowset
* @param x the new column value
* @throws SQLException if (1) the given column index is out of bounds,
* (2) the cursor is not on one of this rowset's rows or its
* insert row, or (3) this rowset is
* <code>ResultSet.CONCUR_READ_ONLY</code>
*/
public void updateString(int columnIndex, String x) throws SQLException {
crsInternal.updateString(columnIndex, x);
}
/**
* Sets the designated column in either the current row or the insert
* row of this <code>JoinRowSetImpl</code> object with the given
* <code>byte</code> array.
*
* This method updates a column value in either the current row or
* the insert row of this rowset, but it does not update the
* database. If the cursor is on a row in the rowset, the
* method {@link #updateRow} must be called to update the database.
* If the cursor is on the insert row, the method {@link #insertRow}
* must be called, which will insert the new row into both this rowset
* and the database. Both of these methods must be called before the
* cursor moves to another row.
*
* @param columnIndex the first column is <code>1</code>, the second
* is <code>2</code>, and so on; must be <code>1</code> or larger
* and equal to or less than the number of columns in this rowset
* @param x the new column value
* @throws SQLException if (1) the given column index is out of bounds,
* (2) the cursor is not on one of this rowset's rows or its
* insert row, or (3) this rowset is
* <code>ResultSet.CONCUR_READ_ONLY</code>
*/
public void updateBytes(int columnIndex, byte x[]) throws SQLException {
crsInternal.updateBytes(columnIndex, x);
}
/**
* Sets the designated column in either the current row or the insert
* row of this <code>JoinRowSetImpl</code> object with the given
* <code>Date</code> object.
*
* This method updates a column value in either the current row or
* the insert row of this rowset, but it does not update the
* database. If the cursor is on a row in the rowset, the
* method {@link #updateRow} must be called to update the database.
* If the cursor is on the insert row, the method {@link #insertRow}
* must be called, which will insert the new row into both this rowset
* and the database. Both of these methods must be called before the
* cursor moves to another row.
*
* @param columnIndex the first column is <code>1</code>, the second
* is <code>2</code>, and so on; must be <code>1</code> or larger
* and equal to or less than the number of columns in this rowset
* @param x the new column value
* @throws SQLException if (1) the given column index is out of bounds,
* (2) the cursor is not on one of this rowset's rows or its
* insert row, (3) the type of the designated column is not
* an SQL <code>DATE</code> or <code>TIMESTAMP</code>, or
* (4) this rowset is <code>ResultSet.CONCUR_READ_ONLY</code>
*/
public void updateDate(int columnIndex, java.sql.Date x) throws SQLException {
crsInternal.updateDate(columnIndex, x);
}
/**
* Sets the designated column in either the current row or the insert
* row of this <code>JoinRowSetImpl</code> object with the given
* <code>Time</code> object.
*
* This method updates a column value in either the current row or
* the insert row of this rowset, but it does not update the
* database. If the cursor is on a row in the rowset, the
* method {@link #updateRow} must be called to update the database.
* If the cursor is on the insert row, the method {@link #insertRow}
* must be called, which will insert the new row into both this rowset
* and the database. Both of these methods must be called before the
* cursor moves to another row.
*
* @param columnIndex the first column is <code>1</code>, the second
* is <code>2</code>, and so on; must be <code>1</code> or larger
* and equal to or less than the number of columns in this rowset
* @param x the new column value
* @throws SQLException if (1) the given column index is out of bounds,
* (2) the cursor is not on one of this rowset's rows or its
* insert row, (3) the type of the designated column is not
* an SQL <code>TIME</code> or <code>TIMESTAMP</code>, or
* (4) this rowset is <code>ResultSet.CONCUR_READ_ONLY</code>
*/
public void updateTime(int columnIndex, java.sql.Time x) throws SQLException {
crsInternal.updateTime(columnIndex, x);
}
/**
* Sets the designated column in either the current row or the insert
* row of this <code>JoinRowSetImpl</code> object with the given
* <code>Timestamp</code> object.
*
* This method updates a column value in either the current row or
* the insert row of this rowset, but it does not update the
* database. If the cursor is on a row in the rowset, the
* method {@link #updateRow} must be called to update the database.
* If the cursor is on the insert row, the method {@link #insertRow}
* must be called, which will insert the new row into both this rowset
* and the database. Both of these methods must be called before the
* cursor moves to another row.
*
* @param columnIndex the first column is <code>1</code>, the second
* is <code>2</code>, and so on; must be <code>1</code> or larger
* and equal to or less than the number of columns in this rowset
* @param x the new column value
* @throws SQLException if (1) the given column index is out of bounds,
* (2) the cursor is not on one of this rowset's rows or its
* insert row, (3) the type of the designated column is not
* an SQL <code>DATE</code>, <code>TIME</code>, or
* <code>TIMESTAMP</code>, or (4) this rowset is
* <code>ResultSet.CONCUR_READ_ONLY</code>
*/
public void updateTimestamp(int columnIndex, java.sql.Timestamp x) throws SQLException {
crsInternal.updateTimestamp(columnIndex, x);
}
/*
* Sets the designated column in either the current row or the insert
* row of this <code>JoinRowSetImpl</code> object with the given
* ASCII stream value.
* <P>
* This method updates a column value in either the current row or
* the insert row of this rowset, but it does not update the
* database. If the cursor is on a row in the rowset, the
* method {@link #updateRow} must be called to update the database.
* If the cursor is on the insert row, the method {@link #insertRow}
* must be called, which will insert the new row into both this rowset
* and the database. Both of these methods must be called before the
* cursor moves to another row.
*
* @param columnIndex the first column is <code>1</code>, the second
* is <code>2</code>, and so on; must be <code>1</code> or larger
* and equal to or less than the number of columns in this rowset
* @param x the new column value
* @param length the number of one-byte ASCII characters in the stream
* @throws UnsupportedOperationException if this method is invoked
*/
public void updateAsciiStream(int columnIndex, java.io.InputStream x, int length) throws SQLException {
crsInternal.updateAsciiStream(columnIndex, x, length);
}
/**
* Sets the designated column in either the current row or the insert
* row of this <code>JoinRowSetImpl</code> object with the given
* <code>java.io.InputStream</code> object.
* <P>
* This method updates a column value in either the current row or
* the insert row of this rowset, but it does not update the
* database. If the cursor is on a row in the rowset, the
* method {@link #updateRow} must be called to update the database.
* If the cursor is on the insert row, the method {@link #insertRow}
* must be called, which will insert the new row into both this rowset
* and the database. Both of these methods must be called before the
* cursor moves to another row.
*
* @param columnIndex the first column is <code>1</code>, the second
* is <code>2</code>, and so on; must be <code>1</code> or larger
* and equal to or less than the number of columns in this rowset
* @param x the new column value; must be a <code>java.io.InputStream</code>
* containing <code>BINARY</code>, <code>VARBINARY</code>, or
* <code>LONGVARBINARY</code> data
* @param length the length of the stream in bytes
* @throws SQLException if (1) the given column index is out of bounds,
* (2) the cursor is not on one of this rowset's rows or its
* insert row, (3) the data in the stream is not binary, or
* (4) this rowset is <code>ResultSet.CONCUR_READ_ONLY</code>
*/
public void updateBinaryStream(int columnIndex, java.io.InputStream x, int length) throws SQLException {
crsInternal.updateBinaryStream(columnIndex, x, length);
}
/**
* Sets the designated column in either the current row or the insert
* row of this <code>JoinRowSetImpl</code> object with the given
* <code>java.io.Reader</code> object.
* <P>
* This method updates a column value in either the current row or
* the insert row of this rowset, but it does not update the
* database. If the cursor is on a row in the rowset, the
* method {@link #updateRow} must be called to update the database.
* If the cursor is on the insert row, the method {@link #insertRow}
* must be called, which will insert the new row into both this rowset
* and the database. Both of these methods must be called before the
* cursor moves to another row.
*
* @param columnIndex the first column is <code>1</code>, the second
* is <code>2</code>, and so on; must be <code>1</code> or larger
* and equal to or less than the number of columns in this rowset
* @param x the new column value; must be a <code>java.io.Reader</code>
* containing <code>BINARY</code>, <code>VARBINARY</code>,
* <code>LONGVARBINARY</code>, <code>CHAR</code>, <code>VARCHAR</code>,
* or <code>LONGVARCHAR</code> data
* @param length the length of the stream in characters
* @throws SQLException if (1) the given column index is out of bounds,
* (2) the cursor is not on one of this rowset's rows or its
* insert row, (3) the data in the stream is not a binary or
* character type, or (4) this rowset is
* <code>ResultSet.CONCUR_READ_ONLY</code>
*/
public void updateCharacterStream(int columnIndex, java.io.Reader x, int length) throws SQLException {
crsInternal.updateCharacterStream(columnIndex, x, length);
}
/**
* Sets the designated column in either the current row or the insert
* row of this <code>JoinRowSetImpl</code> object with the given
* <code>Object</code> value. The <code>scale</code> parameter indicates
* the number of digits to the right of the decimal point and is ignored
* if the new column value is not a type that will be mapped to an SQL
* <code>DECIMAL</code> or <code>NUMERIC</code> value.
* <P>
* This method updates a column value in either the current row or
* the insert row of this rowset, but it does not update the
* database. If the cursor is on a row in the rowset, the
* method {@link #updateRow} must be called to update the database.
* If the cursor is on the insert row, the method {@link #insertRow}
* must be called, which will insert the new row into both this rowset
* and the database. Both of these methods must be called before the
* cursor moves to another row.
*
* @param columnIndex the first column is <code>1</code>, the second
* is <code>2</code>, and so on; must be <code>1</code> or larger
* and equal to or less than the number of columns in this rowset
* @param x the new column value
* @param scale the number of digits to the right of the decimal point (for
* <code>DECIMAL</code> and <code>NUMERIC</code> types only)
* @throws SQLException if (1) the given column index is out of bounds,
* (2) the cursor is not on one of this rowset's rows or its
* insert row, or (3) this rowset is
* <code>ResultSet.CONCUR_READ_ONLY</code>
*/
public void updateObject(int columnIndex, Object x, int scale) throws SQLException {
crsInternal.updateObject(columnIndex, x, scale);
}
/**
* Sets the designated column in either the current row or the insert
* row of this <code>JoinRowSetImpl</code> object with the given
* <code>Object</code> value.
* <P>
* This method updates a column value in either the current row or
* the insert row of this rowset, but it does not update the
* database. If the cursor is on a row in the rowset, the
* method {@link #updateRow} must be called to update the database.
* If the cursor is on the insert row, the method {@link #insertRow}
* must be called, which will insert the new row into both this rowset
* and the database. Both of these methods must be called before the
* cursor moves to another row.
*
* @param columnIndex the first column is <code>1</code>, the second
* is <code>2</code>, and so on; must be <code>1</code> or larger
* and equal to or less than the number of columns in this rowset
* @param x the new column value
* @throws SQLException if (1) the given column index is out of bounds,
* (2) the cursor is not on one of this rowset's rows or its
* insert row, or (3) this rowset is
* <code>ResultSet.CONCUR_READ_ONLY</code>
*/
public void updateObject(int columnIndex, Object x) throws SQLException {
crsInternal.updateObject(columnIndex, x);
}
// columnName updates
/**
* Sets the designated nullable column in the current row or the
* insert row of this <code>JoinRowSetImpl</code> object with
* <code>null</code> value.
* <P>
* This method updates a column value in the current row or the insert
* row of this rowset, but it does not update the database.
* If the cursor is on a row in the rowset, the
* method {@link #updateRow} must be called to update the database.
* If the cursor is on the insert row, the method {@link #insertRow}
* must be called, which will insert the new row into both this rowset
* and the database.
*
* @param columnName a <code>String</code> object that must match the
* SQL name of a column in this rowset, ignoring case
* @throws SQLException if (1) the given column name does not match the
* name of a column in this rowset, (2) the cursor is not on
* one of this rowset's rows or its insert row, or (3) this
* rowset is <code>ResultSet.CONCUR_READ_ONLY</code>
*/
public void updateNull(String columnName) throws SQLException {
crsInternal.updateNull(columnName);
}
/**
* Sets the designated column in either the current row or the insert
* row of this <code>JoinRowSetImpl</code> object with the given
* <code>boolean</code> value.
* <P>
* This method updates a column value in the current row or the insert
* row of this rowset, but it does not update the database.
* If the cursor is on a row in the rowset, the
* method {@link #updateRow} must be called to update the database.
* If the cursor is on the insert row, the method {@link #insertRow}
* must be called, which will insert the new row into both this rowset
* and the database. Both of these methods must be called before the
* cursor moves to another row.
*
* @param columnName a <code>String</code> object that must match the
* SQL name of a column in this rowset, ignoring case
* @param x the new column value
* @throws SQLException if (1) the given column name does not match the
* name of a column in this rowset, (2) the cursor is not on
* one of this rowset's rows or its insert row, or (3) this
* rowset is <code>ResultSet.CONCUR_READ_ONLY</code>
*/
public void updateBoolean(String columnName, boolean x) throws SQLException {
crsInternal.updateBoolean(columnName, x);
}
/**
* Sets the designated column in either the current row or the insert
* row of this <code>JoinRowSetImpl</code> object with the given
* <code>byte</code> value.
* <P>
* This method updates a column value in the current row or the insert
* row of this rowset, but it does not update the database.
* If the cursor is on a row in the rowset, the
* method {@link #updateRow} must be called to update the database.
* If the cursor is on the insert row, the method {@link #insertRow}
* must be called, which will insert the new row into both this rowset
* and the database. Both of these methods must be called before the
* cursor moves to another row.
*
* @param columnName a <code>String</code> object that must match the
* SQL name of a column in this rowset, ignoring case
* @param x the new column value
* @throws SQLException if (1) the given column name does not match the
* name of a column in this rowset, (2) the cursor is not on
* one of this rowset's rows or its insert row, or (3) this
* rowset is <code>ResultSet.CONCUR_READ_ONLY</code>
*/
public void updateByte(String columnName, byte x) throws SQLException {
crsInternal.updateByte(columnName, x);
}
/**
* Sets the designated column in either the current row or the insert
* row of this <code>JoinRowSetImpl</code> object with the given
* <code>short</code> value.
* <P>
* This method updates a column value in the current row or the insert
* row of this rowset, but it does not update the database.
* If the cursor is on a row in the rowset, the
* method {@link #updateRow} must be called to update the database.
* If the cursor is on the insert row, the method {@link #insertRow}
* must be called, which will insert the new row into both this rowset
* and the database. Both of these methods must be called before the
* cursor moves to another row.
*
* @param columnName a <code>String</code> object that must match the
* SQL name of a column in this rowset, ignoring case
* @param x the new column value
* @throws SQLException if (1) the given column name does not match the
* name of a column in this rowset, (2) the cursor is not on
* one of this rowset's rows or its insert row, or (3) this
* rowset is <code>ResultSet.CONCUR_READ_ONLY</code>
*/
public void updateShort(String columnName, short x) throws SQLException {
crsInternal.updateShort(columnName, x);
}
/**
* Sets the designated column in either the current row or the insert
* row of this <code>JoinRowSetImpl</code> object with the given
* <code>int</code> value.
* <P>
* This method updates a column value in the current row or the insert
* row of this rowset, but it does not update the database.
* If the cursor is on a row in the rowset, the
* method {@link #updateRow} must be called to update the database.
* If the cursor is on the insert row, the method {@link #insertRow}
* must be called, which will insert the new row into both this rowset
* and the database. Both of these methods must be called before the
* cursor moves to another row.
*
* @param columnName a <code>String</code> object that must match the
* SQL name of a column in this rowset, ignoring case
* @param x the new column value
* @throws SQLException if (1) the given column name does not match the
* name of a column in this rowset, (2) the cursor is not on
* one of this rowset's rows or its insert row, or (3) this
* rowset is <code>ResultSet.CONCUR_READ_ONLY</code>
*/
public void updateInt(String columnName, int x) throws SQLException {
crsInternal.updateInt(columnName, x);
}
/**
* Sets the designated column in either the current row or the insert
* row of this <code>JoinRowSetImpl</code> object with the given
* <code>long</code> value.
* <P>
* This method updates a column value in the current row or the insert
* row of this rowset, but it does not update the database.
* If the cursor is on a row in the rowset, the
* method {@link #updateRow} must be called to update the database.
* If the cursor is on the insert row, the method {@link #insertRow}
* must be called, which will insert the new row into both this rowset
* and the database. Both of these methods must be called before the
* cursor moves to another row.
*
* @param columnName a <code>String</code> object that must match the
* SQL name of a column in this rowset, ignoring case
* @param x the new column value
* @throws SQLException if (1) the given column name does not match the
* name of a column in this rowset, (2) the cursor is not on
* one of this rowset's rows or its insert row, or (3) this
* rowset is <code>ResultSet.CONCUR_READ_ONLY</code>
*/
public void updateLong(String columnName, long x) throws SQLException {
crsInternal.updateLong(columnName, x);
}
/**
* Sets the designated column in either the current row or the insert
* row of this <code>JoinRowSetImpl</code> object with the given
* <code>float</code> value.
* <P>
* This method updates a column value in the current row or the insert
* row of this rowset, but it does not update the database.
* If the cursor is on a row in the rowset, the
* method {@link #updateRow} must be called to update the database.
* If the cursor is on the insert row, the method {@link #insertRow}
* must be called, which will insert the new row into both this rowset
* and the database. Both of these methods must be called before the
* cursor moves to another row.
*
* @param columnName a <code>String</code> object that must match the
* SQL name of a column in this rowset, ignoring case
* @param x the new column value
* @throws SQLException if (1) the given column name does not match the
* name of a column in this rowset, (2) the cursor is not on
* one of this rowset's rows or its insert row, or (3) this
* rowset is <code>ResultSet.CONCUR_READ_ONLY</code>
*/
public void updateFloat(String columnName, float x) throws SQLException {
crsInternal.updateFloat(columnName, x);
}
/**
* Sets the designated column in either the current row or the insert
* row of this <code>JoinRowSetImpl</code> object with the given
* <code>double</code> value.
*
* This method updates a column value in either the current row or
* the insert row of this rowset, but it does not update the
* database. If the cursor is on a row in the rowset, the
* method {@link #updateRow} must be called to update the database.
* If the cursor is on the insert row, the method {@link #insertRow}
* must be called, which will insert the new row into both this rowset
* and the database. Both of these methods must be called before the
* cursor moves to another row.
*
* @param columnName a <code>String</code> object that must match the
* SQL name of a column in this rowset, ignoring case
* @param x the new column value
* @throws SQLException if (1) the given column name does not match the
* name of a column in this rowset, (2) the cursor is not on
* one of this rowset's rows or its insert row, or (3) this
* rowset is <code>ResultSet.CONCUR_READ_ONLY</code>
*/
public void updateDouble(String columnName, double x) throws SQLException {
crsInternal.updateDouble(columnName, x);
}
/**
* Sets the designated column in either the current row or the insert
* row of this <code>JoinRowSetImpl</code> object with the given
* <code>java.math.BigDecimal</code> object.
* <P>
* This method updates a column value in the current row or the insert
* row of this rowset, but it does not update the database.
* If the cursor is on a row in the rowset, the
* method {@link #updateRow} must be called to update the database.
* If the cursor is on the insert row, the method {@link #insertRow}
* must be called, which will insert the new row into both this rowset
* and the database. Both of these methods must be called before the
* cursor moves to another row.
*
* @param columnName a <code>String</code> object that must match the
* SQL name of a column in this rowset, ignoring case
* @param x the new column value
* @throws SQLException if (1) the given column name does not match the
* name of a column in this rowset, (2) the cursor is not on
* one of this rowset's rows or its insert row, or (3) this
* rowset is <code>ResultSet.CONCUR_READ_ONLY</code>
*/
public void updateBigDecimal(String columnName, BigDecimal x) throws SQLException {
crsInternal.updateBigDecimal(columnName, x);
}
/**
* Sets the designated column in either the current row or the insert
* row of this <code>JoinRowSetImpl</code> object with the given
* <code>String</code> object.
*
* This method updates a column value in either the current row or
* the insert row of this rowset, but it does not update the
* database. If the cursor is on a row in the rowset, the
* method {@link #updateRow} must be called to update the database.
* If the cursor is on the insert row, the method {@link #insertRow}
* must be called, which will insert the new row into both this rowset
* and the database. Both of these methods must be called before the
* cursor moves to another row.
*
* @param columnName a <code>String</code> object that must match the
* SQL name of a column in this rowset, ignoring case
* @param x the new column value
* @throws SQLException if (1) the given column name does not match the
* name of a column in this rowset, (2) the cursor is not on
* one of this rowset's rows or its insert row, or (3) this
* rowset is <code>ResultSet.CONCUR_READ_ONLY</code>
*/
public void updateString(String columnName, String x) throws SQLException {
crsInternal.updateString(columnName, x);
}
/**
* Sets the designated column in either the current row or the insert
* row of this <code>JoinRowSetImpl</code> object with the given
* <code>byte</code> array.
*
* This method updates a column value in either the current row or
* the insert row of this rowset, but it does not update the
* database. If the cursor is on a row in the rowset, the
* method {@link #updateRow} must be called to update the database.
* If the cursor is on the insert row, the method {@link #insertRow}
* must be called, which will insert the new row into both this rowset
* and the database. Both of these methods must be called before the
* cursor moves to another row.
*
* @param columnName a <code>String</code> object that must match the
* SQL name of a column in this rowset, ignoring case
* @param x the new column value
* @throws SQLException if (1) the given column name does not match the
* name of a column in this rowset, (2) the cursor is not on
* one of this rowset's rows or its insert row, or (3) this
* rowset is <code>ResultSet.CONCUR_READ_ONLY</code>
*/
public void updateBytes(String columnName, byte x[]) throws SQLException {
crsInternal.updateBytes(columnName, x);
}
/**
* Sets the designated column in either the current row or the insert
* row of this <code>JoinRowSetImpl</code> object with the given
* <code>Date</code> object.
*
* This method updates a column value in either the current row or
* the insert row of this rowset, but it does not update the
* database. If the cursor is on a row in the rowset, the
* method {@link #updateRow} must be called to update the database.
* If the cursor is on the insert row, the method {@link #insertRow}
* must be called, which will insert the new row into both this rowset
* and the database. Both of these methods must be called before the
* cursor moves to another row.
*
* @param columnName a <code>String</code> object that must match the
* SQL name of a column in this rowset, ignoring case
* @param x the new column value
* @throws SQLException if (1) the given column name does not match the
* name of a column in this rowset, (2) the cursor is not on
* one of this rowset's rows or its insert row, (3) the type
* of the designated column is not an SQL <code>DATE</code> or
* <code>TIMESTAMP</code>, or (4) this rowset is
* <code>ResultSet.CONCUR_READ_ONLY</code>
*/
public void updateDate(String columnName, java.sql.Date x) throws SQLException {
crsInternal.updateDate(columnName, x);
}
/**
* Sets the designated column in either the current row or the insert
* row of this <code>JoinRowSetImpl</code> object with the given
* <code>Time</code> object.
*
* This method updates a column value in either the current row or
* the insert row of this rowset, but it does not update the
* database. If the cursor is on a row in the rowset, the
* method {@link #updateRow} must be called to update the database.
* If the cursor is on the insert row, the method {@link #insertRow}
* must be called, which will insert the new row into both this rowset
* and the database. Both of these methods must be called before the
* cursor moves to another row.
*
* @param columnName a <code>String</code> object that must match the
* SQL name of a column in this rowset, ignoring case
* @param x the new column value
* @throws SQLException if (1) the given column name does not match the
* name of a column in this rowset, (2) the cursor is not on
* one of this rowset's rows or its insert row, (3) the type
* of the designated column is not an SQL <code>TIME</code> or
* <code>TIMESTAMP</code>, or (4) this rowset is
* <code>ResultSet.CONCUR_READ_ONLY</code>
*/
public void updateTime(String columnName, java.sql.Time x) throws SQLException {
crsInternal.updateTime(columnName, x);
}
/**
* Sets the designated column in either the current row or the insert
* row of this <code>JoinRowSetImpl</code> object with the given
* <code>Timestamp</code> object.
*
* This method updates a column value in either the current row or
* the insert row of this rowset, but it does not update the
* database. If the cursor is on a row in the rowset, the
* method {@link #updateRow} must be called to update the database.
* If the cursor is on the insert row, the method {@link #insertRow}
* must be called, which will insert the new row into both this rowset
* and the database. Both of these methods must be called before the
* cursor moves to another row.
*
* @param columnName a <code>String</code> object that must match the
* SQL name of a column in this rowset, ignoring case
* @param x the new column value
* @throws SQLException if the given column index is out of bounds or
* the cursor is not on one of this rowset's rows or its
* insert row
* @throws SQLException if (1) the given column name does not match the
* name of a column in this rowset, (2) the cursor is not on
* one of this rowset's rows or its insert row, (3) the type
* of the designated column is not an SQL <code>DATE</code>,
* <code>TIME</code>, or <code>TIMESTAMP</code>, or (4) this
* rowset is <code>ResultSet.CONCUR_READ_ONLY</code>
*/
public void updateTimestamp(String columnName, java.sql.Timestamp x) throws SQLException {
crsInternal.updateTimestamp(columnName, x);
}
/**
* Unsupported; throws an <code>UnsupportedOperationException</code>
* if called.
* <P>
* Sets the designated column in either the current row or the insert
* row of this <code>JoinRowSetImpl</code> object with the given
* ASCII stream value.
* <P>
* This method updates a column value in either the current row or
* the insert row of this rowset, but it does not update the
* database. If the cursor is on a row in the rowset, the
* method {@link #updateRow} must be called to update the database.
* If the cursor is on the insert row, the method {@link #insertRow}
* must be called, which will insert the new row into both this rowset
* and the database. Both of these methods must be called before the
* cursor moves to another row.
*
* @param columnName a <code>String</code> object that must match the
* SQL name of a column in this rowset, ignoring case
* @param x the new column value
* @param length the number of one-byte ASCII characters in the stream
* @throws UnsupportedOperationException if this method is invoked
*/
public void updateAsciiStream(String columnName, java.io.InputStream x, int length) throws SQLException {
crsInternal.updateAsciiStream(columnName, x, length);
}
/**
* Sets the designated column in either the current row or the insert
* row of this <code>JoinRowSetImpl</code> object with the given
* <code>java.io.InputStream</code> object.
* <P>
* This method updates a column value in either the current row or
* the insert row of this rowset, but it does not update the
* database. If the cursor is on a row in the rowset, the
* method {@link #updateRow} must be called to update the database.
* If the cursor is on the insert row, the method {@link #insertRow}
* must be called, which will insert the new row into both this rowset
* and the database. Both of these methods must be called before the
* cursor moves to another row.
*
* @param columnName a <code>String</code> object that must match the
* SQL name of a column in this rowset, ignoring case
* @param x the new column value; must be a <code>java.io.InputStream</code>
* containing <code>BINARY</code>, <code>VARBINARY</code>, or
* <code>LONGVARBINARY</code> data
* @param length the length of the stream in bytes
* @throws SQLException if (1) the given column name does not match the
* name of a column in this rowset, (2) the cursor is not on
* one of this rowset's rows or its insert row, (3) the data
* in the stream is not binary, or (4) this rowset is
* <code>ResultSet.CONCUR_READ_ONLY</code>
*/
public void updateBinaryStream(String columnName, java.io.InputStream x, int length) throws SQLException {
crsInternal.updateBinaryStream(columnName, x, length);
}
/**
* Sets the designated column in either the current row or the insert
* row of this <code>JoinRowSetImpl</code> object with the given
* <code>java.io.Reader</code> object.
* <P>
* This method updates a column value in either the current row or
* the insert row of this rowset, but it does not update the
* database. If the cursor is on a row in the rowset, the
* method {@link #updateRow} must be called to update the database.
* If the cursor is on the insert row, the method {@link #insertRow}
* must be called, which will insert the new row into both this rowset
* and the database. Both of these methods must be called before the
* cursor moves to another row.
*
* @param columnName a <code>String</code> object that must match the
* SQL name of a column in this rowset, ignoring case
* @param x the new column value; must be a <code>java.io.Reader</code>
* containing <code>BINARY</code>, <code>VARBINARY</code>,
* <code>LONGVARBINARY</code>, <code>CHAR</code>, <code>VARCHAR</code>,
* or <code>LONGVARCHAR</code> data
* @param length the length of the stream in characters
* @throws SQLException if (1) the given column name does not match the
* name of a column in this rowset, (2) the cursor is not on
* one of this rowset's rows or its insert row, (3) the data
* in the stream is not a binary or character type, or (4) this
* rowset is <code>ResultSet.CONCUR_READ_ONLY</code>
*/
public void updateCharacterStream(String columnName, java.io.Reader x, int length) throws SQLException {
crsInternal.updateCharacterStream(columnName, x, length);
}
/**
* Sets the designated column in either the current row or the insert
* row of this <code>JoinRowSetImpl</code> object with the given
* <code>Object</code> value. The <code>scale</code> parameter
* indicates the number of digits to the right of the decimal point
* and is ignored if the new column value is not a type that will be
* mapped to an SQL <code>DECIMAL</code> or <code>NUMERIC</code> value.
* <P>
* This method updates a column value in either the current row or
* the insert row of this rowset, but it does not update the
* database. If the cursor is on a row in the rowset, the
* method {@link #updateRow} must be called to update the database.
* If the cursor is on the insert row, the method {@link #insertRow}
* must be called, which will insert the new row into both this rowset
* and the database. Both of these methods must be called before the
* cursor moves to another row.
*
* @param columnName a <code>String</code> object that must match the
* SQL name of a column in this rowset, ignoring case
* @param x the new column value
* @param scale the number of digits to the right of the decimal point (for
* <code>DECIMAL</code> and <code>NUMERIC</code> types only)
* @throws SQLException if the given column index is out of bounds or
* the cursor is not on one of this rowset's rows or its
* insert row
* @throws SQLException if (1) the given column name does not match the
* name of a column in this rowset, (2) the cursor is not on
* one of this rowset's rows or its insert row, or (3) this
* rowset is <code>ResultSet.CONCUR_READ_ONLY</code>
*/
public void updateObject(String columnName, Object x, int scale) throws SQLException {
crsInternal.updateObject(columnName, x, scale);
}
/**
* Sets the designated column in either the current row or the insert
* row of this <code>JoinRowSetImpl</code> object with the given
* <code>Object</code> value.
* <P>
* This method updates a column value in either the current row or
* the insert row of this rowset, but it does not update the
* database. If the cursor is on a row in the rowset, the
* method {@link #updateRow} must be called to update the database.
* If the cursor is on the insert row, the method {@link #insertRow}
* must be called, which will insert the new row into both this rowset
* and the database. Both of these methods must be called before the
* cursor moves to another row.
*
* @param columnName a <code>String</code> object that must match the
* SQL name of a column in this rowset, ignoring case
* @param x the new column value
* @throws SQLException if (1) the given column name does not match the
* name of a column in this rowset, (2) the cursor is not on
* one of this rowset's rows or its insert row, or (3) this
* rowset is <code>ResultSet.CONCUR_READ_ONLY</code>
*/
public void updateObject(String columnName, Object x) throws SQLException {
crsInternal.updateObject(columnName, x);
}
/**
* Inserts the contents of this <code>JoinRowSetImpl</code> object's insert
* row into this rowset immediately following the current row.
* If the current row is the
* position after the last row or before the first row, the new row will
* be inserted at the end of the rowset. This method also notifies
* listeners registered with this rowset that the row has changed.
* <P>
* The cursor must be on the insert row when this method is called.
*
* @throws SQLException if (1) the cursor is not on the insert row,
* (2) one or more of the non-nullable columns in the insert
* row has not been given a value, or (3) this rowset is
* <code>ResultSet.CONCUR_READ_ONLY</code>
*/
public void insertRow() throws SQLException {
crsInternal.insertRow();
}
/**
* Marks the current row of this <code>JoinRowSetImpl</code> object as
* updated and notifies listeners registered with this rowset that the
* row has changed.
* <P>
* This method cannot be called when the cursor is on the insert row, and
* it should be called before the cursor moves to another row. If it is
* called after the cursor moves to another row, this method has no effect,
* and the updates made before the cursor moved will be lost.
*
* @throws SQLException if the cursor is on the insert row or this
* rowset is <code>ResultSet.CONCUR_READ_ONLY</code>
*/
public void updateRow() throws SQLException {
crsInternal.updateRow();
}
/**
* Deletes the current row from this <code>JoinRowSetImpl</code> object and
* notifies listeners registered with this rowset that a row has changed.
* This method cannot be called when the cursor is on the insert row.
* <P>
* This method marks the current row as deleted, but it does not delete
* the row from the underlying data source. The method
* <code>acceptChanges</code> must be called to delete the row in
* the data source.
*
* @throws SQLException if (1) this method is called when the cursor
* is on the insert row, before the first row, or after the
* last row or (2) this rowset is
* <code>ResultSet.CONCUR_READ_ONLY</code>
*/
public void deleteRow() throws SQLException {
crsInternal.deleteRow();
}
/**
* Sets the current row with its original value and marks the row as
* not updated, thus undoing any changes made to the row since the
* last call to the methods <code>updateRow</code> or <code>deleteRow</code>.
* This method should be called only when the cursor is on a row in
* this rowset.
*
* @throws SQLException if the cursor is on the insert row, before the
* first row, or after the last row
*/
public void refreshRow() throws SQLException {
crsInternal.refreshRow();
}
/**
* Rolls back any updates made to the current row of this
* <code>JoinRowSetImpl</code> object and notifies listeners that
* a row has changed. To have an effect, this method
* must be called after an <code>updateXXX</code> method has been
* called and before the method <code>updateRow</code> has been called.
* If no updates have been made or the method <code>updateRow</code>
* has already been called, this method has no effect.
* <P>
* After <code>updateRow</code> is called it is the
* <code>cancelRowUpdates</code> has no affect on the newly
* inserted values. The method <code>cancelRowInsert</code> can
* be used to remove any rows inserted into the RowSet.
*
* @throws SQLException if the cursor is on the insert row, before the
* first row, or after the last row
*/
public void cancelRowUpdates() throws SQLException {
crsInternal.cancelRowUpdates();
}
/**
* Moves the cursor for this <code>JoinRowSetImpl</code> object
* to the insert row. The current row in the rowset is remembered
* while the cursor is on the insert row.
* <P>
* The insert row is a special row associated with an updatable
* rowset. It is essentially a buffer where a new row may
* be constructed by calling the appropriate <code>updateXXX</code>
* methods to assign a value to each column in the row. A complete
* row must be constructed; that is, every column that is not nullable
* must be assigned a value. In order for the new row to become part
* of this rowset, the method <code>insertRow</code> must be called
* before the cursor is moved back to the rowset.
* <P>
* Only certain methods may be invoked while the cursor is on the insert
* row; many methods throw an exception if they are called while the
* cursor is there. In addition to the <code>updateXXX</code>
* and <code>insertRow</code> methods, only the <code>getXXX</code> methods
* may be called when the cursor is on the insert row. A <code>getXXX</code>
* method should be called on a column only after an <code>updateXXX</code>
* method has been called on that column; otherwise, the value returned is
* undetermined.
*
* @throws SQLException if this <code>JoinRowSetImpl</code> object is
* <code>ResultSet.CONCUR_READ_ONLY</code>
*/
public void moveToInsertRow() throws SQLException {
crsInternal.moveToInsertRow();
}
/**
* Moves the cursor for this <code>JoinRowSetImpl</code> object to
* the current row. The current row is the row the cursor was on
* when the method <code>moveToInsertRow</code> was called.
* <P>
* Calling this method has no effect unless it is called while the
* cursor is on the insert row.
*
* @throws SQLException if an error occurs
*/
public void moveToCurrentRow() throws SQLException {
crsInternal.moveToCurrentRow();
}
/**
* Returns <code>null</code>.
*
* @return <code>null</code>
* @throws SQLException if an error occurs
*/
public Statement getStatement() throws SQLException {
return crsInternal.getStatement();
}
/**
* Retrieves the value of the designated column in this
* <code>JoinRowSetImpl</code> object as a <code>Ref</code> object
* in the Java programming lanugage.
*
* @param columnIndex the first column is <code>1</code>, the second
* is <code>2</code>, and so on; must be <code>1</code> or larger
* and equal to or less than the number of columns in this rowset
* @return a <code>Ref</code> object representing an SQL<code> REF</code> value
* @throws SQLException if (1) the given column index is out of bounds,
* (2) the cursor is not on one of this rowset's rows or its
* insert row, or (3) the designated column does not store an
* SQL <code>REF</code> value
*/
public Ref getRef(int columnIndex) throws SQLException {
return crsInternal.getRef(columnIndex);
}
/**
* Retrieves the value of the designated column in this
* <code>JoinRowSetImpl</code> object as a <code>Blob</code> object
* in the Java programming lanugage.
*
* @param columnIndex the first column is <code>1</code>, the second
* is <code>2</code>, and so on; must be <code>1</code> or larger
* and equal to or less than the number of columns in this rowset
* @return a <code>Blob</code> object representing an SQL <code>BLOB</code> value
* @throws SQLException if (1) the given column index is out of bounds,
* (2) the cursor is not on one of this rowset's rows or its
* insert row, or (3) the designated column does not store an
* SQL <code>BLOB</code> value
*/
public Blob getBlob(int columnIndex) throws SQLException {
return crsInternal.getBlob(columnIndex);
}
/**
* Retrieves the value of the designated column in this
* <code>JoinRowSetImpl</code> object as a <code>Clob</code> object
* in the Java programming lanugage.
*
* @param columnIndex the first column is <code>1</code>, the second
* is <code>2</code>, and so on; must be <code>1</code> or larger
* and equal to or less than the number of columns in this rowset
* @return a <code>Clob</code> object representing an SQL <code>CLOB</code> value
* @throws SQLException if (1) the given column index is out of bounds,
* (2) the cursor is not on one of this rowset's rows or its
* insert row, or (3) the designated column does not store an
* SQL <code>CLOB</code> value
*/
public Clob getClob(int columnIndex) throws SQLException {
return crsInternal.getClob(columnIndex);
}
/**
* Retrieves the value of the designated column in this
* <code>JoinRowSetImpl</code> object as an <code>Array</code> object
* in the Java programming lanugage.
*
* @param columnIndex the first column is <code>1</code>, the second
* is <code>2</code>, and so on; must be <code>1</code> or larger
* and equal to or less than the number of columns in this rowset
* @return an <code>Array</code> object representing an SQL
* <code>ARRAY</code> value
* @throws SQLException if (1) the given column index is out of bounds,
* (2) the cursor is not on one of this rowset's rows or its
* insert row, or (3) the designated column does not store an
* SQL <code>ARRAY</code> value
*/
public Array getArray(int columnIndex) throws SQLException {
return crsInternal.getArray(columnIndex);
}
// ColumnName
/**
* Retrieves the value of the designated column in this
* <code>JoinRowSetImpl</code> object as a <code>Ref</code> object
* in the Java programming lanugage.
*
* @param columnName a <code>String</code> object that must match the
* SQL name of a column in this rowset, ignoring case
* @return a <code>Ref</code> object representing an SQL<code> REF</code> value
* @throws SQLException if (1) the given column name is not the name
* of a column in this rowset, (2) the cursor is not on one of
* this rowset's rows or its insert row, or (3) the column value
* is not an SQL <code>REF</code> value
*/
public Ref getRef(String columnName) throws SQLException {
return crsInternal.getRef(columnName);
}
/**
* Retrieves the value of the designated column in this
* <code>JoinRowSetImpl</code> object as a <code>Blob</code> object
* in the Java programming lanugage.
*
* @param columnName a <code>String</code> object that must match the
* SQL name of a column in this rowset, ignoring case
* @return a <code>Blob</code> object representing an SQL
* <code>BLOB</code> value
* @throws SQLException if (1) the given column name is not the name of
* a column in this rowset, (2) the cursor is not on one of
* this rowset's rows or its insert row, or (3) the designated
* column does not store an SQL <code>BLOB</code> value
*/
public Blob getBlob(String columnName) throws SQLException {
return crsInternal.getBlob(columnName);
}
/**
* Retrieves the value of the designated column in this
* <code>JoinRowSetImpl</code> object as a <code>Clob</code> object
* in the Java programming lanugage.
*
* @param columnName a <code>String</code> object that must match the
* SQL name of a column in this rowset, ignoring case
* @return a <code>Clob</code> object representing an SQL
* <code>CLOB</code> value
* @throws SQLException if (1) the given column name is not the name of
* a column in this rowset, (2) the cursor is not on one of
* this rowset's rows or its insert row, or (3) the designated
* column does not store an SQL <code>CLOB</code> value
*/
public Clob getClob(String columnName) throws SQLException {
return crsInternal.getClob(columnName);
}
/**
* Retrieves the value of the designated column in this
* <code>JoinRowSetImpl</code> object as an <code>Array</code> object
* in the Java programming lanugage.
*
* @param columnName a <code>String</code> object that must match the
* SQL name of a column in this rowset, ignoring case
* @return an <code>Array</code> object representing an SQL
* <code>ARRAY</code> value
* @throws SQLException if (1) the given column name is not the name of
* a column in this rowset, (2) the cursor is not on one of
* this rowset's rows or its insert row, or (3) the designated
* column does not store an SQL <code>ARRAY</code> value
*/
public Array getArray(String columnName) throws SQLException {
return crsInternal.getArray(columnName);
}
/**
* Retrieves the value of the designated column in the current row
* of this <code>JoinRowSetImpl</code> object as a <code>java.sql.Date</code>
* object, using the given <code>Calendar</code> object to construct an
* appropriate millisecond value for the date.
*
* @param columnIndex the first column is <code>1</code>, the second
* is <code>2</code>, and so on; must be <code>1</code> or larger
* and equal to or less than the number of columns in the rowset
* @param cal the <code>java.util.Calendar</code> object to use in
* constructing the date
* @return the column value; if the value is SQL <code>NULL</code>,
* the result is <code>null</code>
* @throws SQLException if (1) the given column name is not the name of
* a column in this rowset, (2) the cursor is not on one of
* this rowset's rows or its insert row, or (3) the designated
* column does not store an SQL <code>DATE</code> or
* <code>TIMESTAMP</code> value
*/
public java.sql.Date getDate(int columnIndex, Calendar cal) throws SQLException {
return crsInternal.getDate(columnIndex, cal);
}
/**
* Retrieves the value of the designated column in the current row
* of this <code>JoinRowSetImpl</code> object as a <code>java.sql.Date</code>
* object, using the given <code>Calendar</code> object to construct an
* appropriate millisecond value for the date.
*
* @param columnName a <code>String</code> object that must match the
* SQL name of a column in this rowset, ignoring case
* @param cal the <code>java.util.Calendar</code> object to use in
* constructing the date
* @return the column value; if the value is SQL <code>NULL</code>,
* the result is <code>null</code>
* @throws SQLException if (1) the given column name is not the name of
* a column in this rowset, (2) the cursor is not on one of
* this rowset's rows or its insert row, or (3) the designated
* column does not store an SQL <code>DATE</code> or
* <code>TIMESTAMP</code> value
*/
public java.sql.Date getDate(String columnName, Calendar cal) throws SQLException {
return crsInternal.getDate(columnName, cal);
}
/**
* Retrieves the value of the designated column in the current row
* of this <code>JoinRowSetImpl</code> object as a <code>java.sql.Time</code>
* object, using the given <code>Calendar</code> object to construct an
* appropriate millisecond value for the date.
*
* @param columnIndex the first column is <code>1</code>, the second
* is <code>2</code>, and so on; must be <code>1</code> or larger
* and equal to or less than the number of columns in the rowset
* @param cal the <code>java.util.Calendar</code> object to use in
* constructing the date
* @return the column value; if the value is SQL <code>NULL</code>,
* the result is <code>null</code>
* @throws SQLException if (1) the given column name is not the name of
* a column in this rowset, (2) the cursor is not on one of
* this rowset's rows or its insert row, or (3) the designated
* column does not store an SQL <code>TIME</code> or
* <code>TIMESTAMP</code> value
*/
public java.sql.Time getTime(int columnIndex, Calendar cal) throws SQLException {
return crsInternal.getTime(columnIndex, cal);
}
/**
* Retrieves the value of the designated column in the current row
* of this <code>JoinRowSetImpl</code> object as a <code>java.sql.Time</code>
* object, using the given <code>Calendar</code> object to construct an
* appropriate millisecond value for the date.
*
* @param columnName a <code>String</code> object that must match the
* SQL name of a column in this rowset, ignoring case
* @param cal the <code>java.util.Calendar</code> object to use in
* constructing the date
* @return the column value; if the value is SQL <code>NULL</code>,
* the result is <code>null</code>
* @throws SQLException if (1) the given column name is not the name of
* a column in this rowset, (2) the cursor is not on one of
* this rowset's rows or its insert row, or (3) the designated
* column does not store an SQL <code>TIME</code> or
* <code>TIMESTAMP</code> value
*/
public java.sql.Time getTime(String columnName, Calendar cal) throws SQLException {
return crsInternal.getTime(columnName, cal);
}
/**
* Retrieves the value of the designated column in the current row
* of this <code>JoinRowSetImpl</code> object as a <code>java.sql.Timestamp</code>
* object, using the given <code>Calendar</code> object to construct an
* appropriate millisecond value for the date.
*
* @param columnIndex the first column is <code>1</code>, the second
* is <code>2</code>, and so on; must be <code>1</code> or larger
* and equal to or less than the number of columns in the rowset
* @param cal the <code>java.util.Calendar</code> object to use in
* constructing the date
* @return the column value; if the value is SQL <code>NULL</code>,
* the result is <code>null</code>
* @throws SQLException if (1) the given column name is not the name of
* a column in this rowset, (2) the cursor is not on one of
* this rowset's rows or its insert row, or (3) the designated
* column does not store an SQL <code>TIME</code> or
* <code>TIMESTAMP</code> value
*/
public java.sql.Timestamp getTimestamp(int columnIndex, Calendar cal) throws SQLException {
return crsInternal.getTimestamp(columnIndex, cal);
}
/**
* Retrieves the value of the designated column in the current row
* of this <code>JoinRowSetImpl</code> object as a
* <code>java.sql.Timestamp</code> object, using the given
* <code>Calendar</code> object to construct an appropriate
* millisecond value for the date.
*
* @param columnName a <code>String</code> object that must match the
* SQL name of a column in this rowset, ignoring case
* @param cal the <code>java.util.Calendar</code> object to use in
* constructing the date
* @return the column value; if the value is SQL <code>NULL</code>,
* the result is <code>null</code>
* @throws SQLException if (1) the given column name is not the name of
* a column in this rowset, (2) the cursor is not on one of
* this rowset's rows or its insert row, or (3) the designated
* column does not store an SQL <code>DATE</code>,
* <code>TIME</code>, or <code>TIMESTAMP</code> value
*/
public java.sql.Timestamp getTimestamp(String columnName, Calendar cal) throws SQLException {
return crsInternal.getTimestamp(columnName, cal);
}
/**
* Sets the metadata for this <code>JoinRowSetImpl</code> object
* with the given <code>RowSetMetaData</code> object.
*
* @param md a <code>RowSetMetaData</code> object instance containing
* metadata about the columsn in the rowset
* @throws SQLException if invalid meta data is supplied to the
* rowset
*/
public void setMetaData(RowSetMetaData md) throws SQLException {
crsInternal.setMetaData(md);
}
public ResultSet getOriginal() throws SQLException {
return crsInternal.getOriginal();
}
/**
* Returns a result set containing the original value of the rowset.
* The cursor is positioned before the first row in the result set.
* Only rows contained in the result set returned by getOriginal()
* are said to have an original value.
*
* @return the original result set of the rowset
* @throws SQLException if an error occurs produce the
* <code>ResultSet</code> object
*/
public ResultSet getOriginalRow() throws SQLException {
return crsInternal.getOriginalRow();
}
/**
* Returns a result set containing the original value of the current
* row only.
*
* @throws SQLException if there is no current row
* @see #setOriginalRow
*/
public void setOriginalRow() throws SQLException {
crsInternal.setOriginalRow();
}
/**
* Returns the columns that make a key to uniquely identify a
* row in this <code>JoinRowSetImpl</code> object.
*
* @return an array of column number that constites a primary
* key for this rowset. This array should be empty
* if no columns is representitive of a primary key
* @throws SQLException if the rowset is empty or no columns
* are designated as primary keys
* @see #setKeyColumns
*/
public int[] getKeyColumns() throws SQLException {
return crsInternal.getKeyColumns();
}
/**
* Sets this <code>JoinRowSetImpl</code> object's
* <code>keyCols</code> field with the given array of column
* numbers, which forms a key for uniquely identifying a row
* in this rowset.
*
* @param cols an array of <code>int</code> indicating the
* columns that form a primary key for this
* <code>JoinRowSetImpl</code> object; every
* element in the array must be greater than
* <code>0</code> and less than or equal to the number
* of columns in this rowset
* @throws SQLException if any of the numbers in the
* given array is not valid for this rowset
* @see #getKeyColumns
*/
public void setKeyColumns(int[] cols) throws SQLException {
crsInternal.setKeyColumns(cols);
}
/**
* Sets the designated column in either the current row or the insert
* row of this <code>JoinRowSetImpl</code> object with the given
* <code>Ref</code> value.
* <P>
* This method updates a column value in the current row or the insert
* row of this rowset, but it does not update the database.
* If the cursor is on a row in the rowset, the
* method {@link #updateRow} must be called to update the database.
* If the cursor is on the insert row, the method {@link #insertRow}
* must be called, which will insert the new row into both this rowset
* and the database. Either of these methods must be called before the
* cursor moves to another row.
*
* @param columnIndex the first column is <code>1</code>, the second
* is <code>2</code>, and so on; must be <code>1</code> or larger
* and equal to or less than the number of columns in this rowset
* @param ref the <code>java.sql.Ref</code> object that will be set as
* the new column value
* @throws SQLException if (1) the given column index is out of bounds,
* (2) the cursor is not on one of this rowset's rows or its
* insert row, or (3) this rowset is
* <code>ResultSet.CONCUR_READ_ONLY</code>
*/
public void updateRef(int columnIndex, java.sql.Ref ref) throws SQLException {
crsInternal.updateRef(columnIndex, ref);
}
/**
* Sets the designated column in either the current row or the insert
* row of this <code>JoinRowSetImpl</code> object with the given
* <code>Ref</code> value.
* <P>
* This method updates a column value in the current row or the insert
* row of this rowset, but it does not update the database.
* If the cursor is on a row in the rowset, the
* method {@link #updateRow} must be called to update the database.
* If the cursor is on the insert row, the method {@link #insertRow}
* must be called, which will insert the new row into both this rowset
* and the database. Either of these methods must be called before the
* cursor moves to another row.
*
* @param columnName a <code>String</code> object giving the name of the column
* to be updated; must match one of the column names in this
* <code>JoinRowSetImpl</code> object
* @param ref the <code>java.sql.Ref</code> object that will be set as
* the new column value
* @throws SQLException if (1) the given column name is not valid,
* (2) the cursor is not on one of this rowset's rows or its
* insert row, or (3) this rowset is
* <code>ResultSet.CONCUR_READ_ONLY</code>
*/
public void updateRef(String columnName, java.sql.Ref ref) throws SQLException {
crsInternal.updateRef(columnName, ref);
}
/**
* Sets the designated column in either the current row or the insert
* row of this <code>JoinRowSetImpl</code> object with the given
* <code>Clob</code> object.
* <P>
* This method updates a column value in the current row or the insert
* row of this rowset, but it does not update the database.
* If the cursor is on a row in the rowset, the
* method {@link #updateRow} must be called to update the database.
* If the cursor is on the insert row, the method {@link #insertRow}
* must be called, which will insert the new row into both this rowset
* and the database. Either of these methods must be called before the
* cursor moves to another row.
*
* @param columnIndex the first column is <code>1</code>, the second
* is <code>2</code>, and so on; must be <code>1</code> or larger
* and equal to or less than the number of columns in this rowset
* @param c the <code>java.sql.Clob</code> object that will be set as
* the new column value
* @throws SQLException if (1) the given column index is out of bounds,
* (2) the cursor is not on one of this rowset's rows or its
* insert row, or (3) this rowset is
* <code>ResultSet.CONCUR_READ_ONLY</code>
*/
public void updateClob(int columnIndex, Clob c) throws SQLException {
crsInternal.updateClob(columnIndex, c);
}
/**
* Sets the designated column in either the current row or the insert
* row of this <code>JoinRowSetImpl</code> object with the given
* <code>Clob</code> object.
* <P>
* This method updates a column value in the current row or the insert
* row of this rowset, but it does not update the database.
* If the cursor is on a row in the rowset, the
* method {@link #updateRow} must be called to update the database.
* If the cursor is on the insert row, the method {@link #insertRow}
* must be called, which will insert the new row into both this rowset
* and the database. Either of these methods must be called before the
* cursor moves to another row.
*
* @param columnName a <code>String</code> object giving the name of the column
* to be updated; must match one of the column names in this
* <code>JoinRowSetImpl</code> object
* @param c the <code>java.sql.Clob</code> object that will be set as
* the new column value
* @throws SQLException if (1) the given column name is not valid,
* (2) the cursor is not on one of this rowset's rows or its
* insert row, or (3) this rowset is
* <code>ResultSet.CONCUR_READ_ONLY</code>
*/
public void updateClob(String columnName, Clob c) throws SQLException {
crsInternal.updateClob(columnName, c);
}
/**
* Sets the designated column in either the current row or the insert
* row of this <code>JoinRowSetImpl</code> object with the given
* <code>Blob</code> value.
* <P>
* This method updates a column value in the current row or the insert
* row of this rowset, but it does not update the database.
* If the cursor is on a row in the rowset, the
* method {@link #updateRow} must be called to update the database.
* If the cursor is on the insert row, the method {@link #insertRow}
* must be called, which will insert the new row into both this rowset
* and the database. Either of these methods must be called before the
* cursor moves to another row.
*
* @param columnIndex the first column is <code>1</code>, the second
* is <code>2</code>, and so on; must be <code>1</code> or larger
* and equal to or less than the number of columns in this rowset
* @param b the <code>java.sql.Blob</code> object that will be set as
* the new column value
* @throws SQLException if (1) the given column index is out of bounds,
* (2) the cursor is not on one of this rowset's rows or its
* insert row, or (3) this rowset is
* <code>ResultSet.CONCUR_READ_ONLY</code>
*/
public void updateBlob(int columnIndex, Blob b) throws SQLException {
crsInternal.updateBlob(columnIndex, b);
}
/**
* Sets the designated column in either the current row or the insert
* row of this <code>JoinRowSetImpl</code> object with the given
* <code>Blob</code> object.
* <P>
* This method updates a column value in the current row or the insert
* row of this rowset, but it does not update the database.
* If the cursor is on a row in the rowset, the
* method {@link #updateRow} must be called to update the database.
* If the cursor is on the insert row, the method {@link #insertRow}
* must be called, which will insert the new row into both this rowset
* and the database. Either of these methods must be called before the
* cursor moves to another row.
*
* @param columnName a <code>String</code> object giving the name of the column
* to be updated; must match one of the column names in this
* <code>JoinRowSetImpl</code> object
* @param b the <code>java.sql.Blob</code> object that will be set as
* the new column value
* @throws SQLException if (1) the given column name is not valid,
* (2) the cursor is not on one of this rowset's rows or its
* insert row, or (3) this rowset is
* <code>ResultSet.CONCUR_READ_ONLY</code>
*/
public void updateBlob(String columnName, Blob b) throws SQLException {
crsInternal.updateBlob(columnName, b);
}
/**
* Sets the designated column in either the current row or the insert
* row of this <code>JoinRowSetImpl</code> object with the given
* <code>Array</code> object.
* <P>
* This method updates a column value in the current row or the insert
* row of this rowset, but it does not update the database.
* If the cursor is on a row in the rowset, the
* method {@link #updateRow} must be called to update the database.
* If the cursor is on the insert row, the method {@link #insertRow}
* must be called, which will insert the new row into both this rowset
* and the database. Either of these methods must be called before the
* cursor moves to another row.
*
* @param columnIndex the first column is <code>1</code>, the second
* is <code>2</code>, and so on; must be <code>1</code> or larger
* and equal to or less than the number of columns in this rowset
* @param a the <code>java.sql.Array</code> object that will be set as
* the new column value
* @throws SQLException if (1) the given column index is out of bounds,
* (2) the cursor is not on one of this rowset's rows or its
* insert row, or (3) this rowset is
* <code>ResultSet.CONCUR_READ_ONLY</code>
*/
public void updateArray(int columnIndex, Array a) throws SQLException {
crsInternal.updateArray(columnIndex, a);
}
/**
* Sets the designated column in either the current row or the insert
* row of this <code>JoinRowSetImpl</code> object with the given
* <code>Array</code> object.
* <P>
* This method updates a column value in the current row or the insert
* row of this rowset, but it does not update the database.
* If the cursor is on a row in the rowset, the
* method {@link #updateRow} must be called to update the database.
* If the cursor is on the insert row, the method {@link #insertRow}
* must be called, which will insert the new row into both this rowset
* and the database. Either of these methods must be called before the
* cursor moves to another row.
*
* @param columnName a <code>String</code> object giving the name of the column
* to be updated; must match one of the column names in this
* <code>JoinRowSetImpl</code> object
* @param a the <code>java.sql.Array</code> object that will be set as
* the new column value
* @throws SQLException if (1) the given column name is not valid,
* (2) the cursor is not on one of this rowset's rows or its
* insert row, or (3) this rowset is
* <code>ResultSet.CONCUR_READ_ONLY</code>
*/
public void updateArray(String columnName, Array a) throws SQLException {
crsInternal.updateArray(columnName, a);
}
/**
* Populates this <code>JoinRowSetImpl</code> object with data.
* This form of the method uses the rowset's user, password, and url or
* data source name properties to create a database
* connection. If properties that are needed
* have not been set, this method will throw an exception.
* <P>
* Another form of this method uses an existing JDBC <code>Connection</code>
* object instead of creating a new one; therefore, it ignores the
* properties used for establishing a new connection.
* <P>
* The query specified by the command property is executed to create a
* <code>ResultSet</code> object from which to retrieve data.
* The current contents of the rowset are discarded, and the
* rowset's metadata is also (re)set. If there are outstanding updates,
* they are also ignored.
* <P>
* The method <code>execute</code> closes any database connections that it
* creates.
*
* @throws SQLException if an error occurs or the
* necessary properties have not been set
*/
public void execute() throws SQLException {
crsInternal.execute();
}
/**
* Populates this <code>JoinRowSetImpl</code> object with data,
* using the given connection to produce the result set from
* which data will be read. A second form of this method,
* which takes no arguments, uses the values from this rowset's
* user, password, and either url or data source properties to
* create a new database connection. The form of <code>execute</code>
* that is given a connection ignores these properties.
*
* @param conn A standard JDBC <code>Connection</code> object with valid
* properties that the <code>JoinRowSet</code> implementation
* can pass to a synchronization provider to establish a
* connection to the datasource
* @throws SQLException if an invalid <code>Connection</code> is supplied
* or an error occurs in establishing the connection to the
* data soure
* @see java.sql.Connection
*/
public void execute(Connection conn) throws SQLException {
crsInternal.execute(conn);
}
/**
* Provide interface coverage for getURL(int) in ResultSet->RowSet
*/
public java.net.URL getURL(int columnIndex) throws SQLException {
return crsInternal.getURL(columnIndex);
}
/**
* Provide interface coverage for getURL(String) in ResultSet->RowSet
*/
public java.net.URL getURL(String columnName) throws SQLException {
return crsInternal.getURL(columnName);
}
/**
* Creates a new <code>WebRowSet</code> object, populates it with the
* data in the given <code>ResultSet</code> object, and writes it
* to the given <code>java.io.Writer</code> object in XML format.
*
* @throws SQLException if an error occurs writing out the rowset
* contents to XML
*/
public void writeXml(ResultSet rs, java.io.Writer writer)
throws SQLException {
wrs = new WebRowSetImpl();
wrs.populate(rs);
wrs.writeXml(writer);
}
/**
* Writes this <code>JoinRowSet</code> object to the given
* <code>java.io.Writer</code> object in XML format. In
* addition to the rowset's data, its properties and metadata
* are also included.
*
* @throws SQLException if an error occurs writing out the rowset
* contents to XML
*/
public void writeXml(java.io.Writer writer) throws SQLException {
createWebRowSet().writeXml(writer);
}
/**
* Reads this <code>JoinRowSet</code> object in its XML format.
*
* @throws SQLException if a database access error occurs
*/
public void readXml(java.io.Reader reader) throws SQLException {
wrs = new WebRowSetImpl();
wrs.readXml(reader);
crsInternal = (CachedRowSetImpl)wrs;
}
// Stream based methods
/**
* Reads a stream based XML input to populate an <code>WebRowSet</code>
*
* @throws SQLException if a data source access occurs
* @throws IOException if a IO exception occurs
*/
public void readXml(java.io.InputStream iStream) throws SQLException, IOException {
wrs = new WebRowSetImpl();
wrs.readXml(iStream);
crsInternal = (CachedRowSetImpl)wrs;
}
/**
* Creates an an output stream of the internal state and contents of a
* <code>WebRowSet</code> for XML proceessing
*
* @throws SQLException if a datasource access occurs
* @throws IOException if an IO exception occurs
*/
public void writeXml(java.io.OutputStream oStream) throws SQLException, IOException {
createWebRowSet().writeXml(oStream);
}
/**
* Creates a new <code>WebRowSet</code> object, populates it with
* the contents of the <code>ResultSet</code> and creates an output
* streams the internal state and contents of the rowset for XML processing.
*
* @throws SQLException if a datasource access occurs
* @throws IOException if an IO exception occurs
*/
public void writeXml(ResultSet rs, java.io.OutputStream oStream) throws SQLException, IOException {
wrs = new WebRowSetImpl();
wrs.populate(rs);
wrs.writeXml(oStream);
}
/**
* %%% Javadoc comments to be added here
*/
private WebRowSet createWebRowSet() throws SQLException {
if(wrs != null) {
// check if it has already been initialized.
return wrs;
} else {
wrs = new WebRowSetImpl();
crsInternal.beforeFirst();
wrs.populate(crsInternal);
return wrs;
}
}
/**
* Returns the last set SQL <code>JOIN</code> type in this JoinRowSetImpl
* object
*
* @return joinType One of the standard JoinRowSet static field JOIN types
* @throws SQLException if an error occurs determining the current join type
*/
public int getJoinType() throws SQLException {
if (vecJoinType == null) {
// Default JoinRowSet type
this.setJoinType(JoinRowSet.INNER_JOIN);
}
Integer i = (Integer)(vecJoinType.get(vecJoinType.size()-1));
return i.intValue();
}
/**
* The listener will be notified whenever an event occurs on this <code>JoinRowSet</code>
* object.
* <P>
* A listener might, for example, be a table or graph that needs to
* be updated in order to accurately reflect the current state of
* the <code>RowSet</code> object.
* <p>
* <b>Note</b>: if the <code>RowSetListener</code> object is
* <code>null</code>, this method silently discards the <code>null</code>
* value and does not add a null reference to the set of listeners.
* <p>
* <b>Note</b>: if the listener is already set, and the new <code>RowSetListerner</code>
* instance is added to the set of listeners already registered to receive
* event notifications from this <code>RowSet</code>.
*
* @param listener an object that has implemented the
* <code>javax.sql.RowSetListener</code> interface and wants to be notified
* of any events that occur on this <code>JoinRowSet</code> object; May be
* null.
* @see #removeRowSetListener
*/
public void addRowSetListener(RowSetListener listener) {
crsInternal.addRowSetListener(listener);
}
/**
* Removes the designated object from this <code>JoinRowSet</code> object's list of listeners.
* If the given argument is not a registered listener, this method
* does nothing.
*
* <b>Note</b>: if the <code>RowSetListener</code> object is
* <code>null</code>, this method silently discards the <code>null</code>
* value.
*
* @param listener a <code>RowSetListener</code> object that is on the list
* of listeners for this <code>JoinRowSet</code> object
* @see #addRowSetListener
*/
public void removeRowSetListener(RowSetListener listener) {
crsInternal.removeRowSetListener(listener);
}
/**
* Converts this <code>JoinRowSetImpl</code> object to a collection
* of tables. The sample implementation utilitizes the <code>TreeMap</code>
* collection type.
* This class guarantees that the map will be in ascending key order,
* sorted according to the natural order for the key's class.
*
* @return a <code>Collection</code> object consisting of tables,
* each of which is a copy of a row in this
* <code>JoinRowSetImpl</code> object
* @throws SQLException if an error occurs in generating the collection
* @see #toCollection(int)
* @see #toCollection(String)
* @see java.util.TreeMap
*/
public Collection<?> toCollection() throws SQLException {
return crsInternal.toCollection();
}
/**
* Returns the specified column of this <code>JoinRowSetImpl</code> object
* as a <code>Collection</code> object. This method makes a copy of the
* column's data and utilitizes the <code>Vector</code> to establish the
* collection. The <code>Vector</code> class implements a growable array
* objects allowing the individual components to be accessed using an
* an integer index similar to that of an array.
*
* @return a <code>Collection</code> object that contains the value(s)
* stored in the specified column of this
* <code>JoinRowSetImpl</code>
* object
* @throws SQLException if an error occurs generated the collection; or
* an invalid column is provided.
* @see #toCollection()
* @see #toCollection(String)
* @see java.util.Vector
*/
public Collection<?> toCollection(int column) throws SQLException {
return crsInternal.toCollection(column);
}
/**
* Returns the specified column of this <code>JoinRowSetImpl</code> object
* as a <code>Collection</code> object. This method makes a copy of the
* column's data and utilitizes the <code>Vector</code> to establish the
* collection. The <code>Vector</code> class implements a growable array
* objects allowing the individual components to be accessed using an
* an integer index similar to that of an array.
*
* @return a <code>Collection</code> object that contains the value(s)
* stored in the specified column of this
* <code>JoinRowSetImpl</code>
* object
* @throws SQLException if an error occurs generated the collection; or
* an invalid column is provided.
* @see #toCollection()
* @see #toCollection(int)
* @see java.util.Vector
*/
public Collection<?> toCollection(String column) throws SQLException {
return crsInternal.toCollection(column);
}
/**
* Creates a <code>RowSet</code> object that is a copy of
* this <code>JoinRowSetImpl</code> object's table structure
* and the constraints only.
* There will be no data in the object being returned.
* Updates made on a copy are not visible to the original rowset.
* <P>
* This helps in getting the underlying XML schema which can
* be used as the basis for populating a <code>WebRowSet</code>.
*
* @return a new <code>CachedRowSet</code> object that is a copy
* of this <code>JoinRowSetImpl</code> object's schema and
* retains all the constraints on the original rowset but contains
* no data
* @throws SQLException if an error occurs in generating the copy
* of the <code>CachedRowSet</code> object
* @see #createShared
* @see #createCopy
* @see #createCopyNoConstraints
* @see javax.sql.RowSetEvent
* @see javax.sql.RowSetListener
*/
public CachedRowSet createCopySchema() throws SQLException {
return crsInternal.createCopySchema();
}
static final long serialVersionUID = -5590501621560008453L;
}