org.hibernate.event.internal.DefaultDirtyCheckEventListener Maven / Gradle / Ivy
/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* Copyright (c) 2008-2011, 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.
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*/
package org.hibernate.event.internal;
import org.jboss.logging.Logger;
import org.hibernate.HibernateException;
import org.hibernate.event.spi.DirtyCheckEvent;
import org.hibernate.event.spi.DirtyCheckEventListener;
import org.hibernate.internal.CoreMessageLogger;
/**
* Defines the default dirty-check event listener used by hibernate for
* checking the session for dirtiness in response to generated dirty-check
* events.
*
* @author Steve Ebersole
*/
public class DefaultDirtyCheckEventListener extends AbstractFlushingEventListener implements DirtyCheckEventListener {
private static final CoreMessageLogger LOG = Logger.getMessageLogger( CoreMessageLogger.class, DefaultDirtyCheckEventListener.class.getName() );
/**
* Handle the given dirty-check event.
*
* @param event The dirty-check event to be handled.
* @throws HibernateException
*/
public void onDirtyCheck(DirtyCheckEvent event) throws HibernateException {
int oldSize = event.getSession().getActionQueue().numberOfCollectionRemovals();
try {
flushEverythingToExecutions(event);
boolean wasNeeded = event.getSession().getActionQueue().hasAnyQueuedActions();
if ( wasNeeded )
LOG.debug( "Session dirty" );
else
LOG.debug( "Session not dirty" );
event.setDirty( wasNeeded );
}
finally {
event.getSession().getActionQueue().clearFromFlushNeededCheck( oldSize );
}
}
}