package org.hibernate.tool.hbm2ddl;
import org.hibernate.connection.ConnectionProvider;
import org.hibernate.util.JDBCExceptionReporter;
import java.sql.Connection;
import java.sql.SQLException;
/**
* 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 ) {
JDBCExceptionReporter.logAndClearWarnings( connection );
if ( toggleAutoCommit ) {
connection.setAutoCommit( false );
}
provider.closeConnection( connection );
connection = null;
}
}
}
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