org.hibernate.event.internal.DirtyCollectionSearchVisitor 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.
* 51 Franklin Street, Fifth Floor
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*/
package org.hibernate.event.internal;
import org.hibernate.HibernateException;
import org.hibernate.collection.spi.PersistentCollection;
import org.hibernate.engine.spi.SessionImplementor;
import org.hibernate.event.spi.EventSource;
import org.hibernate.type.CollectionType;
/**
* Do we have a dirty collection here?
* 1. if it is a new application-instantiated collection, return true (does not occur anymore!)
* 2. if it is a component, recurse
* 3. if it is a wrappered collection, ask the collection entry
*
* @author Gavin King
*/
public class DirtyCollectionSearchVisitor extends AbstractVisitor {
private boolean dirty = false;
private boolean[] propertyVersionability;
DirtyCollectionSearchVisitor(EventSource session, boolean[] propertyVersionability) {
super(session);
this.propertyVersionability = propertyVersionability;
}
boolean wasDirtyCollectionFound() {
return dirty;
}
Object processCollection(Object collection, CollectionType type)
throws HibernateException {
if (collection!=null) {
SessionImplementor session = getSession();
final PersistentCollection persistentCollection;
if ( type.isArrayType() ) {
persistentCollection = session.getPersistenceContext().getCollectionHolder(collection);
// if no array holder we found an unwrappered array (this can't occur,
// because we now always call wrap() before getting to here)
// return (ah==null) ? true : searchForDirtyCollections(ah, type);
}
else {
// if not wrappered yet, its dirty (this can't occur, because
// we now always call wrap() before getting to here)
// return ( ! (obj instanceof PersistentCollection) ) ?
//true : searchForDirtyCollections( (PersistentCollection) obj, type );
persistentCollection = (PersistentCollection) collection;
}
if ( persistentCollection.isDirty() ) { //we need to check even if it was not initialized, because of delayed adds!
dirty=true;
return null; //NOTE: EARLY EXIT!
}
}
return null;
}
boolean includeEntityProperty(Object[] values, int i) {
return propertyVersionability[i] && super.includeEntityProperty(values, i);
}
}