/*
* Copyright 1999-2017 Alibaba Group Holding Ltd.
*
* 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 com.alibaba.druid.util.jdbc;
import java.sql.ResultSetMetaData;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.List;
public class ResultSetMetaDataBase implements ResultSetMetaData {
public ResultSetMetaDataBase(){
}
private final List<ColumnMetaData> columns = new ArrayList<ColumnMetaData>();
public List<ColumnMetaData> getColumns() {
return columns;
}
public int findColumn(String columnName) throws SQLException {
for (int i = 0; i < columns.size(); ++i) {
ColumnMetaData column = columns.get(i);
if (column.getColumnName().equals(columnName)) {
return i + 1;
}
}
throw new SQLException("column '" + columnName + "' not found.");
}
@SuppressWarnings("unchecked")
@Override
public <T> T unwrap(Class<T> iface) throws SQLException {
if (isWrapperFor(iface)) {
return (T) this;
}
return null;
}
@Override
public boolean isWrapperFor(Class<?> iface) throws SQLException {
if (iface == null) {
return false;
}
return iface.isAssignableFrom(this.getClass());
}
@Override
public int getColumnCount() throws SQLException {
return columns.size();
}
@Override
public boolean isAutoIncrement(int column) throws SQLException {
return getColumn(column).isAutoIncrement();
}
@Override
public boolean isCaseSensitive(int column) throws SQLException {
return getColumn(column).isCaseSensitive();
}
@Override
public boolean isSearchable(int column) throws SQLException {
return getColumn(column).isSearchable();
}
@Override
public boolean isCurrency(int column) throws SQLException {
return getColumn(column).isCurrency();
}
@Override
public int isNullable(int column) throws SQLException {
return getColumn(column).getNullable();
}
@Override
public boolean isSigned(int column) throws SQLException {
return getColumn(column).isSigned();
}
@Override
public int getColumnDisplaySize(int column) throws SQLException {
return getColumn(column).getColumnDisplaySize();
}
@Override
public String getColumnLabel(int column) throws SQLException {
return getColumn(column).getColumnLabel();
}
public ColumnMetaData getColumn(int column) {
return columns.get(column - 1);
}
@Override
public String getColumnName(int column) throws SQLException {
return getColumn(column).getColumnName();
}
@Override
public String getSchemaName(int column) throws SQLException {
return getColumn(column).getSchemaName();
}
@Override
public int getPrecision(int column) throws SQLException {
return getColumn(column).getPrecision();
}
@Override
public int getScale(int column) throws SQLException {
return getColumn(column).getScale();
}
@Override
public String getTableName(int column) throws SQLException {
return getColumn(column).getTableName();
}
@Override
public String getCatalogName(int column) throws SQLException {
return getColumn(column).getCatalogName();
}
@Override
public int getColumnType(int column) throws SQLException {
return getColumn(column).getColumnType();
}
@Override
public String getColumnTypeName(int column) throws SQLException {
return getColumn(column).getColumnTypeName();
}
@Override
public boolean isReadOnly(int column) throws SQLException {
return getColumn(column).isReadOnly();
}
@Override
public boolean isWritable(int column) throws SQLException {
return getColumn(column).isWritable();
}
@Override
public boolean isDefinitelyWritable(int column) throws SQLException {
return getColumn(column).isDefinitelyWritable();
}
@Override
public String getColumnClassName(int column) throws SQLException {
return getColumn(column).getColumnClassName();
}
public static class ColumnMetaData {
private boolean autoIncrement = false;
private boolean caseSensitive;
private boolean searchable;
private boolean currency;
private int nullable = 0;
private boolean signed;
private int columnDisplaySize;
private String columnLabel;
private String columnName;
private String schemaName;
private int precision;
private int scale;
private String tableName;
private String catalogName;
private int columnType;
private String columnTypeName;
private boolean readOnly;
private boolean writable;
private boolean definitelyWritable;
private String columnClassName;
public boolean isAutoIncrement() {
return autoIncrement;
}
public void setAutoIncrement(boolean autoIncrement) {
this.autoIncrement = autoIncrement;
}
public boolean isCaseSensitive() {
return caseSensitive;
}
public void setCaseSensitive(boolean caseSensitive) {
this.caseSensitive = caseSensitive;
}
public boolean isSearchable() {
return searchable;
}
public void setSearchable(boolean searchable) {
this.searchable = searchable;
}
public boolean isCurrency() {
return currency;
}
public void setCurrency(boolean currency) {
this.currency = currency;
}
public int getNullable() {
return nullable;
}
public void setNullable(int nullable) {
this.nullable = nullable;
}
public boolean isSigned() {
return signed;
}
public void setSigned(boolean signed) {
this.signed = signed;
}
public int getColumnDisplaySize() {
return columnDisplaySize;
}
public void setColumnDisplaySize(int columnDisplaySize) {
this.columnDisplaySize = columnDisplaySize;
}
public String getColumnLabel() {
return columnLabel;
}
public void setColumnLabel(String columnLabel) {
this.columnLabel = columnLabel;
}
public String getColumnName() {
return columnName;
}
public void setColumnName(String columnName) {
this.columnName = columnName;
}
public String getSchemaName() {
return schemaName;
}
public void setSchemaName(String schemaName) {
this.schemaName = schemaName;
}
public int getPrecision() {
return precision;
}
public void setPrecision(int precision) {
this.precision = precision;
}
public int getScale() {
return scale;
}
public void setScale(int scale) {
this.scale = scale;
}
public String getTableName() {
return tableName;
}
public void setTableName(String tableName) {
this.tableName = tableName;
}
public String getCatalogName() {
return catalogName;
}
public void setCatalogName(String catalogName) {
this.catalogName = catalogName;
}
public int getColumnType() {
return columnType;
}
public void setColumnType(int columnType) {
this.columnType = columnType;
}
public String getColumnTypeName() {
return columnTypeName;
}
public void setColumnTypeName(String columnTypeName) {
this.columnTypeName = columnTypeName;
}
public boolean isReadOnly() {
return readOnly;
}
public void setReadOnly(boolean readOnly) {
this.readOnly = readOnly;
}
public boolean isWritable() {
return writable;
}
public void setWritable(boolean writable) {
this.writable = writable;
}
public boolean isDefinitelyWritable() {
return definitelyWritable;
}
public void setDefinitelyWritable(boolean definitelyWritable) {
this.definitelyWritable = definitelyWritable;
}
public String getColumnClassName() {
return columnClassName;
}
public void setColumnClassName(String columnClassName) {
this.columnClassName = columnClassName;
}
}
}