/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* Copyright (c) 2008, Red Hat Middleware LLC or third-party contributors as
* indicated by the @author tags or express copyright attribution
* statements applied by the authors. All third-party contributions are
* distributed under license by Red Hat Middleware LLC.
*
* This copyrighted material is made available to anyone wishing to use, modify,
* copy, or redistribute it subject to the terms and conditions of the GNU
* Lesser General Public License, as published by the Free Software Foundation.
*
* This program 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 Lesser General Public License
* for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this distribution; if not, write to:
* Free Software Foundation, Inc.
* 51 Franklin Street, Fifth Floor
* Boston, MA 02110-1301 USA
*
*/
package org.hibernate.tool.hbm2ddl;
import java.sql.Connection;
import java.sql.SQLException;
import org.hibernate.engine.jdbc.connections.spi.ConnectionProvider;
import org.hibernate.engine.jdbc.spi.SqlExceptionHelper;
/**
* A {@link ConnectionHelper} implementation based on a provided
* {@link ConnectionProvider}. Essentially, ensures that the connection
* gets cleaned up, but that the provider itself remains usable since it
* was externally provided to us.
*
* @author Steve Ebersole
*/
class SuppliedConnectionProviderConnectionHelper implements ConnectionHelper {
private ConnectionProvider provider;
private Connection connection;
private boolean toggleAutoCommit;
public SuppliedConnectionProviderConnectionHelper(ConnectionProvider provider) {
this.provider = provider;
}
public void prepare(boolean needsAutoCommit) throws SQLException {
connection = provider.getConnection();
toggleAutoCommit = needsAutoCommit && !connection.getAutoCommit();
if ( toggleAutoCommit ) {
try {
connection.commit();
}
catch( Throwable ignore ) {
// might happen with a managed connection
}
connection.setAutoCommit( true );
}
}
public Connection getConnection() throws SQLException {
return connection;
}
public void release() throws SQLException {
// we only release the connection
if ( connection != null ) {
new SqlExceptionHelper().logAndClearWarnings( connection );
if ( toggleAutoCommit ) {
connection.setAutoCommit( false );
}
provider.closeConnection( connection );
connection = null;
}
}
}