org.jooq.impl.DataSourceConnectionProvider Maven / Gradle / Ivy
/**
* Copyright (c) 2009-2014, Data Geekery GmbH (http://www.datageekery.com)
* All rights reserved.
*
* This work is dual-licensed
* - under the Apache Software License 2.0 (the "ASL")
* - under the jOOQ License and Maintenance Agreement (the "jOOQ License")
* =============================================================================
* You may choose which license applies to you:
*
* - If you're using this work with Open Source databases, you may choose
* either ASL or jOOQ License.
* - If you're using this work with at least one commercial database, you must
* choose jOOQ License
*
* For more information, please visit http://www.jooq.org/licenses
*
* Apache Software License 2.0:
* -----------------------------------------------------------------------------
* 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.
*
* jOOQ License and Maintenance Agreement:
* -----------------------------------------------------------------------------
* Data Geekery grants the Customer the non-exclusive, timely limited and
* non-transferable license to install and use the Software under the terms of
* the jOOQ License and Maintenance Agreement.
*
* This library is distributed with a LIMITED WARRANTY. See the jOOQ License
* and Maintenance Agreement for more details: http://www.jooq.org/licensing
*/
package org.jooq.impl;
import java.sql.Connection;
import java.sql.SQLException;
import javax.sql.DataSource;
import org.jooq.ConnectionProvider;
import org.jooq.exception.DataAccessException;
/**
* A default implementation for a pooled {@link DataSource}-oriented
* {@link ConnectionProvider}
*
* This implementation wraps a JDBC {@link DataSource}. jOOQ will use that data
* source for initialising connections, and creating statements.
*
* Use this connection provider if you want to run distributed transactions,
* such as javax.transaction.UserTransaction. jOOQ will
* {@link Connection#close() close()} all connections after query execution (and
* result fetching) in order to return the connection to the connection pool. If
* you do not use distributed transactions, this will produce driver-specific
* behaviour at the end of query execution at close() invocation
* (e.g. a transaction rollback). Use a {@link DefaultConnectionProvider}
* instead, to control the connection's lifecycle, or implement your own
* {@link ConnectionProvider}.
*
* @author Aaron Digulla
* @author Lukas Eder
*/
public class DataSourceConnectionProvider implements ConnectionProvider {
private final DataSource dataSource;
public DataSourceConnectionProvider(DataSource dataSource) {
this.dataSource = dataSource;
}
public DataSource dataSource() {
return dataSource;
}
@Override
public Connection acquire() {
try {
return dataSource.getConnection();
}
catch (SQLException e) {
throw new DataAccessException("Error getting connection from data source " + dataSource, e);
}
}
@Override
public void release(Connection connection) {
try {
connection.close();
}
catch (SQLException e) {
throw new DataAccessException("Error closing connection " + connection, e);
}
}
}