Hibernate example source code file (SimpleJtaTransactionImpl.java)

This example Hibernate source code file (SimpleJtaTransactionImpl.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Hibernate tags/keywords

connection, connection, heuristicmixedexception, illegalstateexception, illegalstateexception, jdbc, linkedlist, logger, rollbackexception, simplejtatransactionimpl, sql, sqlexception, synchronization, synchronization, systemexception, systemexception, transaction, util

The Hibernate SimpleJtaTransactionImpl.java source code

/*
 * Hibernate, Relational Persistence for Idiomatic Java
 *
 * Copyright (c) 2010, Red Hat Inc. 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 Inc.
 *
 * 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.testing.tm;

import javax.transaction.HeuristicMixedException;
import javax.transaction.HeuristicRollbackException;
import javax.transaction.RollbackException;
import javax.transaction.Status;
import javax.transaction.Synchronization;
import javax.transaction.SystemException;
import javax.transaction.Transaction;
import javax.transaction.xa.XAResource;
import java.sql.Connection;
import java.sql.SQLException;
import java.util.LinkedList;

import org.jboss.logging.Logger;

/**
 * SimpleJtaTransactionImpl implementation
 *
 * @author Steve Ebersole
 */
public class SimpleJtaTransactionImpl implements Transaction {
	private static final Logger log = Logger.getLogger( SimpleJtaTransactionImpl.class );

	private int status;
	private LinkedList synchronizations;
	private Connection connection; // the only resource we care about is jdbc connection
	private final SimpleJtaTransactionManagerImpl jtaTransactionManager;

	public SimpleJtaTransactionImpl(SimpleJtaTransactionManagerImpl jtaTransactionManager) {
		this.jtaTransactionManager = jtaTransactionManager;
		this.status = Status.STATUS_ACTIVE;
	}

	public int getStatus() {
		return status;
	}

	public void commit()
			throws RollbackException, HeuristicMixedException, HeuristicRollbackException, IllegalStateException, SystemException {

		if ( status == Status.STATUS_MARKED_ROLLBACK ) {
            log.trace("on commit, status was marked for rollback-only");
			rollback();
		}
		else {
			status = Status.STATUS_PREPARING;

			for ( int i = 0; i < synchronizations.size(); i++ ) {
				Synchronization s = ( Synchronization ) synchronizations.get( i );
				s.beforeCompletion();
			}

			status = Status.STATUS_COMMITTING;

			if ( connection != null ) {
				try {
					connection.commit();
					connection.close();
				}
				catch ( SQLException sqle ) {
					status = Status.STATUS_UNKNOWN;
					throw new SystemException();
				}
			}

			status = Status.STATUS_COMMITTED;

			for ( int i = 0; i < synchronizations.size(); i++ ) {
				Synchronization s = ( Synchronization ) synchronizations.get( i );
				s.afterCompletion( status );
			}

			//status = Status.STATUS_NO_TRANSACTION;
			jtaTransactionManager.endCurrent( this );
		}
	}

	public void rollback() throws IllegalStateException, SystemException {
		status = Status.STATUS_ROLLEDBACK;

		if ( connection != null ) {
			try {
				connection.rollback();
				connection.close();
			}
			catch ( SQLException sqle ) {
				status = Status.STATUS_UNKNOWN;
				throw new SystemException();
			}
		}

		for ( int i = 0; i < synchronizations.size(); i++ ) {
			Synchronization s = ( Synchronization ) synchronizations.get( i );
			s.afterCompletion( status );
		}

		//status = Status.STATUS_NO_TRANSACTION;
		jtaTransactionManager.endCurrent( this );
	}

	public void setRollbackOnly() throws IllegalStateException, SystemException {
		status = Status.STATUS_MARKED_ROLLBACK;
	}

	public void registerSynchronization(Synchronization synchronization)
			throws RollbackException, IllegalStateException, SystemException {
		// todo : find the spec-allowable statuses during which synch can be registered...
		if ( synchronizations == null ) {
			synchronizations = new LinkedList();
		}
		synchronizations.add( synchronization );
	}

	public void enlistConnection(Connection connection) {
		if ( this.connection != null ) {
			throw new IllegalStateException( "Connection already registered" );
		}
		this.connection = connection;
	}

	public Connection getEnlistedConnection() {
		return connection;
	}


	public boolean enlistResource(XAResource xaResource)
			throws RollbackException, IllegalStateException, SystemException {
		return false;
	}

	public boolean delistResource(XAResource xaResource, int i) throws IllegalStateException, SystemException {
		return false;
	}
}