/*
* Copyright 2000-2004 The Apache Software Foundation.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.jetspeed.om.registry.database;
import java.sql.Connection;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.LinkedList;
import java.util.List;
import org.apache.jetspeed.om.registry.base.BaseCategory;
import org.apache.jetspeed.om.registry.base.BasePortletEntry;
import org.apache.jetspeed.services.logging.JetspeedLogFactoryService;
import org.apache.jetspeed.services.logging.JetspeedLogger;
import org.apache.torque.Torque;
import org.apache.torque.TorqueException;
import org.apache.torque.om.ObjectKey;
import org.apache.torque.om.SimpleKey;
import org.apache.torque.util.BasePeer;
import org.apache.torque.util.Criteria;
import com.workingdogs.village.DataSetException;
import com.workingdogs.village.QueryDataSet;
import com.workingdogs.village.Record;
/**
* Base Peer for Portlet Category Registry entries.
*
* @author <a href="mailto:susinha@cisco.com">Suchisubhra Sinha</a>
* @version $Id: BaseJetspeedPortletCategoryPeer.java,v 1.3 2004/04/06 23:00:16 morciuch Exp $
*/
public class BaseJetspeedPortletCategoryPeer extends BasePeer
{
/**
* Static initialization of the logger for this class
*/
protected static final JetspeedLogger logger = JetspeedLogFactoryService.getLogger(BaseJetspeedPortletCategoryPeer.class.getName());
/** the default database name for this class */
public static final String DATABASE_NAME = "default";
/** the table name for this class */
//public static final String TABLE_NAME = "PORTLET_PARAMETER";
/** the column name for the NAME field */
public static final String PORTLET_ID;
/** the column name for the NAME field */
public static final String NAME;
/** the column name for the GROUP field */
public static final String GROUP;
static {
PORTLET_ID = "PORTLET_CATEGORY.ID";
NAME = "PORTLET_CATEGORY.NAME";
GROUP = "PORTLET_CATEGORY.CATEGORY_GROUP";
if (Torque.isInit())
{
try
{
getMapBuilder();
}
catch (Exception e)
{
logger.error("Could not initialize Peer", e);
}
}
}
/** number of columns for this peer */
public static final int numColumns = 1;
/** A class that can be returned by this peer. */
protected static final String CLASSNAME_DEFAULT =
"org.apache.jetspeed.om.registry.base.BaseCategory";
/** A class that can be returned by this peer. */
protected static final Class CLASS_DEFAULT = initClass(CLASSNAME_DEFAULT);
/**
* Class object initialization method.
*
* @param className name of the class to initialize
* @return the initialized class
*/
private static Class initClass(String className)
{
Class c = null;
try
{
c = Class.forName(className);
}
catch (Throwable t)
{
logger.error(
"A FATAL ERROR has occurred which should not "
+ "have happened under any circumstance. Please notify "
+ "the Turbine developers <turbine-dev@jakarta.apache.org> "
+ "and give as many details as possible (including the error "
+ "stack trace).",
t);
// Error objects should always be propogated.
if (t instanceof Error)
{
throw (Error) t.fillInStackTrace();
}
}
return c;
}
/**
* Get the list of objects for a ResultSet. Please not that your
* resultset MUST return columns in the right order. You can use
* getFieldNames() in BaseObject to get the correct sequence.
*
* @param results the ResultSet
* @return the list of objects
* @throws TorqueException Any exceptions caught during processing will be
* rethrown wrapped into a TorqueException.
*/
public static List resultSet2Objects(java.sql.ResultSet results)
throws TorqueException
{
try
{
QueryDataSet qds = null;
List rows = null;
try
{
qds = new QueryDataSet(results);
rows = getSelectResults(qds);
}
finally
{
if (qds != null)
{
qds.close();
}
}
return populateObjects(rows);
}
catch (SQLException e)
{
throw new TorqueException(e);
}
catch (DataSetException e)
{
throw new TorqueException(e);
}
}
/**
* Add all the columns needed to create a new object.
*
* @param criteria object containing the columns to add.
* @throws TorqueException Any exceptions caught during processing will be
* rethrown wrapped into a TorqueException.
*/
public static void addSelectColumns(Criteria criteria)
throws TorqueException
{
criteria.addSelectColumn(NAME);
criteria.addSelectColumn(GROUP);
}
/**
* Create a new object of type cls from a resultset row starting
* from a specified offset. This is done so that you can select
* other rows than just those needed for this object. You may
* for example want to create two objects from the same row.
*
* @throws TorqueException Any exceptions caught during processing will be
* rethrown wrapped into a TorqueException.
*/
public static BaseCategory row2Object(Record row, int offset, Class cls)
throws TorqueException
{
try
{
BaseCategory obj = (BaseCategory) cls.newInstance();
populateObject(row, offset, obj);
return obj;
}
catch (InstantiationException e)
{
throw new TorqueException(e);
}
catch (IllegalAccessException e)
{
throw new TorqueException(e);
}
}
/**
* Populates an object from a resultset row starting
* from a specified offset. This is done so that you can select
* other rows than just those needed for this object. You may
* for example want to create two objects from the same row.
*
* @throws TorqueException Any exceptions caught during processing will be
* rethrown wrapped into a TorqueException.
*/
public static void populateObject(Record row, int offset, BaseCategory obj)
throws TorqueException
{
try
{
obj.setName(row.getValue(offset + 0).asString());
if (row.getValue(offset + 1).asString() != null)
obj.setGroup(row.getValue(offset + 1).asString());
}
catch (DataSetException e)
{
throw new TorqueException(e);
}
}
/**
* Method to do selects.
*
* @param criteria object used to create the SELECT statement.
* @return List of selected Objects
* @throws TorqueException Any exceptions caught during processing will be
* rethrown wrapped into a TorqueException.
*/
public static List doSelect(Criteria criteria) throws TorqueException
{
return populateObjects(doSelectVillageRecords(criteria));
}
/**
* Method to do selects within a transaction.
*
* @param criteria object used to create the SELECT statement.
* @param con the connection to use
* @return List of selected Objects
* @throws TorqueException Any exceptions caught during processing will be
* rethrown wrapped into a TorqueException.
*/
public static List doSelect(Criteria criteria, Connection con)
throws TorqueException
{
return populateObjects(doSelectVillageRecords(criteria, con));
}
/**
* Grabs the raw Village records to be formed into objects.
* This method handles connections internally. The Record objects
* returned by this method should be considered readonly. Do not
* alter the data and call save(), your results may vary, but are
* certainly likely to result in hard to track MT bugs.
*
* @throws TorqueException Any exceptions caught during processing will be
* rethrown wrapped into a TorqueException.
*/
public static List doSelectVillageRecords(Criteria criteria)
throws TorqueException
{
return BaseJetspeedPortletCategoryPeer.doSelectVillageRecords(
criteria,
(Connection) null);
}
/**
* Grabs the raw Village records to be formed into objects.
* This method should be used for transactions
*
* @param con the connection to use
* @throws TorqueException Any exceptions caught during processing will be
* rethrown wrapped into a TorqueException.
*/
public static List doSelectVillageRecords(
Criteria criteria,
Connection con)
throws TorqueException
{
if (criteria.getSelectColumns().size() == 0)
{
addSelectColumns(criteria);
}
// Set the correct dbName if it has not been overridden
// criteria.getDbName will return the same object if not set to
// another value so == check is okay and faster
if (criteria.getDbName() == Torque.getDefaultDB())
{
criteria.setDbName(DATABASE_NAME);
}
// BasePeer returns a List of Value (Village) arrays. The array
// order follows the order columns were placed in the Select clause.
if (con == null)
{
return BasePeer.doSelect(criteria);
}
else
{
return BasePeer.doSelect(criteria, con);
}
}
/**
* The returned List will contain objects of the default type or
* objects that inherit from the default.
*
* @throws TorqueException Any exceptions caught during processing will be
* rethrown wrapped into a TorqueException.
*/
public static List populateObjects(List records) throws TorqueException
{
List results = new ArrayList(records.size());
// populate the object(s)
for (int i = 0; i < records.size(); i++)
{
Record row = (Record) records.get(i);
results.add(
BaseJetspeedPortletCategoryPeer.row2Object(
row,
1,
BaseJetspeedPortletCategoryPeer.getOMClass()));
}
return results;
}
/**
* The class that the Peer will make instances of.
* If the BO is abstract then you must implement this method
* in the BO.
*
* @throws TorqueException Any exceptions caught during processing will be
* rethrown wrapped into a TorqueException.
*/
public static Class getOMClass() throws TorqueException
{
return CLASS_DEFAULT;
}
/**
* Method to do selects
*
* @throws TorqueException Any exceptions caught during processing will be
* rethrown wrapped into a TorqueException.
*/
public static List doSelect(BasePortletEntry obj) throws TorqueException
{
return doSelect(buildCriteria(obj));
}
/** Build a Criteria object from an ObjectKey */
public static Criteria buildCriteria(ObjectKey pk)
{
Criteria criteria = new Criteria();
criteria.add(PORTLET_ID, pk);
return criteria;
}
/** Build a Criteria object from the data object for this peer */
public static Criteria buildCriteria(BasePortletEntry obj)
{
Criteria criteria = new Criteria(DATABASE_NAME);
//TODO match the values here
return criteria;
}
/**
* Retrieve a single object by pk
*
* @param pk the primary key
* @throws TorqueException Any exceptions caught during processing will be
* rethrown wrapped into a TorqueException.
*/
public static BaseCategory retrieveByPK(int pk) throws TorqueException
{
return retrieveByPK(SimpleKey.keyFor(pk));
}
/**
* Retrieve a single object by pk
*
* @param pk the primary key
* @throws TorqueException Any exceptions caught during processing will be
* rethrown wrapped into a TorqueException.
*/
public static BaseCategory retrieveByPK(ObjectKey pk)
throws TorqueException
{
Connection db = null;
BaseCategory retVal = null;
try
{
db = Torque.getConnection(DATABASE_NAME);
retVal = retrieveByPK(pk, db);
}
finally
{
Torque.closeConnection(db);
}
return (retVal);
}
/**
* Retrieve a single object by pk
*
* @param pk the primary key
* @param con the connection to use
* @throws TorqueException Any exceptions caught during processing will be
* rethrown wrapped into a TorqueException.
*/
public static BaseCategory retrieveByPK(ObjectKey pk, Connection con)
throws TorqueException
{
Criteria criteria = buildCriteria(pk);
List v = doSelect(criteria, con);
if (v.size() != 1)
{
throw new TorqueException("Failed to select one and only one row.");
}
else
{
return (BaseCategory) v.get(0);
}
}
/**
* Retrieve a multiple objects by pk
*
* @param pks List of primary keys
* @throws TorqueException Any exceptions caught during processing will be
* rethrown wrapped into a TorqueException.
*/
public static List retrieveByPKs(List pks) throws TorqueException
{
Connection db = null;
List retVal = null;
try
{
db = Torque.getConnection(DATABASE_NAME);
retVal = retrieveByPKs(pks, db);
}
finally
{
Torque.closeConnection(db);
}
return (retVal);
}
/**
* Retrieve a multiple objects by pk
*
* @param pks List of primary keys
* @param dbcon the connection to use
* @throws TorqueException Any exceptions caught during processing will be
* rethrown wrapped into a TorqueException.
*/
public static List retrieveByPKs(List pks, Connection dbcon)
throws TorqueException
{
List objs = null;
if (pks == null || pks.size() == 0)
{
objs = new LinkedList();
}
else
{
Criteria criteria = new Criteria();
criteria.addIn(PORTLET_ID, pks);
objs = doSelect(criteria, dbcon);
}
return objs;
}
/**
* Retrieve a listt by portlet id
*
* @param id the portlet id
* @throws TorqueException Any exceptions caught during processing will be
* rethrown wrapped into a TorqueException.
*/
public static List retrieveById(int pk) throws TorqueException
{
return retrieveById(SimpleKey.keyFor(pk));
}
/**
* Retrieve a list of objects by id
*
* @param pk the portlet id
* @throws TorqueException Any exceptions caught during processing will be
* rethrown wrapped into a TorqueException.
*/
public static List retrieveById(ObjectKey pk) throws TorqueException
{
Connection db = null;
List retVal = null;
try
{
db = Torque.getConnection(DATABASE_NAME);
retVal = retrieveById(pk, db);
}
finally
{
Torque.closeConnection(db);
}
return (retVal);
}
/**
* Retrieve a single object by pk
*
* @param pk the primary key
* @param con the connection to use
* @throws TorqueException Any exceptions caught during processing will be
* rethrown wrapped into a TorqueException.
*/
public static List retrieveById(ObjectKey pk, Connection con)
throws TorqueException
{
Criteria criteria = buildCriteria(pk);
return doSelect(criteria, con);
}
}