/*
* 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.engine.transaction;
import java.util.LinkedHashSet;
import javax.transaction.Synchronization;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.hibernate.HibernateException;
/**
* Manages a registry of {@link Synchronization Synchronizations}.
*
* @author Steve Ebersole
*/
public class SynchronizationRegistry {
private static final Logger log = LoggerFactory.getLogger( SynchronizationRegistry.class );
private LinkedHashSet<Synchronization> synchronizations;
/**
* Register a user {@link Synchronization} callback for this transaction.
*
* @param synchronization The synchronization callback to register.
*
* @throws HibernateException
*/
public void registerSynchronization(Synchronization synchronization) {
if ( synchronization == null ) {
throw new NullSynchronizationException();
}
if ( synchronizations == null ) {
synchronizations = new LinkedHashSet<Synchronization>();
}
boolean added = synchronizations.add( synchronization );
if ( !added ) {
log.info( "Synchronization [{}] was already registered", synchronization );
}
}
/**
* Delegate {@link Synchronization#beforeCompletion} calls to {@link #registerSynchronization registered}
* {@link Synchronization Synchronizations}
*/
public void notifySynchronizationsBeforeTransactionCompletion() {
if ( synchronizations != null ) {
for ( Synchronization synchronization : synchronizations ) {
try {
synchronization.beforeCompletion();
}
catch ( Throwable t ) {
log.error( "exception calling user Synchronization [{}]", synchronization, t );
}
}
}
}
/**
* Delegate {@link Synchronization#afterCompletion} calls to {@link #registerSynchronization registered}
* {@link Synchronization Synchronizations}
*
* @param status The transaction status (if known) per {@link javax.transaction.Status}
*/
public void notifySynchronizationsAfterTransactionCompletion(int status) {
if ( synchronizations != null ) {
for ( Synchronization synchronization : synchronizations ) {
try {
synchronization.afterCompletion( status );
}
catch ( Throwable t ) {
log.error( "exception calling user Synchronization [{}]", synchronization, t );
}
}
}
}
}