org.hibernate.envers.event.spi.EnversPreCollectionRemoveEventListenerImpl Maven / Gradle / Ivy
/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* Copyright (c) 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.
* 51 Franklin Street, Fifth Floor
* Boston, MA 02110-1301 USA
*/
package org.hibernate.envers.event.spi;
import java.io.Serializable;
import org.hibernate.engine.spi.CollectionEntry;
import org.hibernate.envers.configuration.spi.AuditConfiguration;
import org.hibernate.event.spi.PreCollectionRemoveEvent;
import org.hibernate.event.spi.PreCollectionRemoveEventListener;
/**
* Envers-specific collection removal event listener
*
* @author Adam Warski (adam at warski dot org)
* @author HernпїЅn Chanfreau
* @author Steve Ebersole
* @author Lukasz Antoniak (lukasz dot antoniak at gmail dot com)
*/
public class EnversPreCollectionRemoveEventListenerImpl
extends BaseEnversCollectionEventListener
implements PreCollectionRemoveEventListener {
protected EnversPreCollectionRemoveEventListenerImpl(AuditConfiguration enversConfiguration) {
super( enversConfiguration );
}
@Override
public void onPreRemoveCollection(PreCollectionRemoveEvent event) {
final CollectionEntry collectionEntry = getCollectionEntry( event );
if ( collectionEntry != null && !collectionEntry.getLoadedPersister().isInverse() ) {
Serializable oldColl = collectionEntry.getSnapshot();
if ( !event.getCollection().wasInitialized() && shouldGenerateRevision( event ) ) {
// In case of uninitialized collection we need a fresh snapshot to properly calculate audit data.
oldColl = initializeCollection( event );
}
onCollectionAction( event, null, oldColl, collectionEntry );
}
}
}