org.hibernate.event.internal.DefaultPostLoadEventListener Maven / Gradle / Ivy
/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* License: GNU Lesser General Public License (LGPL), version 2.1 or later.
* See the lgpl.txt file in the root directory or .
*/
package org.hibernate.event.internal;
import org.hibernate.AssertionFailure;
import org.hibernate.LockMode;
import org.hibernate.action.internal.EntityIncrementVersionProcess;
import org.hibernate.action.internal.EntityVerifyVersionProcess;
import org.hibernate.classic.Lifecycle;
import org.hibernate.engine.spi.EntityEntry;
import org.hibernate.event.spi.PostLoadEvent;
import org.hibernate.event.spi.PostLoadEventListener;
import org.hibernate.persister.entity.EntityPersister;
/**
* We do 2 things here:
* - Call {@link Lifecycle} interface if necessary
* - Perform needed {@link EntityEntry#getLockMode()} related processing
*
*
* @author Gavin King
* @author Steve Ebersole
*/
public class DefaultPostLoadEventListener implements PostLoadEventListener {
@Override
public void onPostLoad(PostLoadEvent event) {
final Object entity = event.getEntity();
final EntityEntry entry = event.getSession().getPersistenceContext().getEntry( entity );
if ( entry == null ) {
throw new AssertionFailure( "possible non-threadsafe access to the session" );
}
final LockMode lockMode = entry.getLockMode();
if ( LockMode.PESSIMISTIC_FORCE_INCREMENT.equals( lockMode ) ) {
final EntityPersister persister = entry.getPersister();
final Object nextVersion = persister.forceVersionIncrement(
entry.getId(),
entry.getVersion(),
event.getSession()
);
entry.forceLocked( entity, nextVersion );
}
else if ( LockMode.OPTIMISTIC_FORCE_INCREMENT.equals( lockMode ) ) {
final EntityIncrementVersionProcess incrementVersion = new EntityIncrementVersionProcess( entity, entry );
event.getSession().getActionQueue().registerProcess( incrementVersion );
}
else if ( LockMode.OPTIMISTIC.equals( lockMode ) ) {
final EntityVerifyVersionProcess verifyVersion = new EntityVerifyVersionProcess( entity, entry );
event.getSession().getActionQueue().registerProcess( verifyVersion );
}
if ( event.getPersister().implementsLifecycle() ) {
//log.debug( "calling onLoad()" );
( (Lifecycle) event.getEntity() ).onLoad( event.getSession(), event.getId() );
}
}
}