//$Id: DirtyCollectionSearchVisitor.java 7675 2005-07-29 06:25:23Z oneovthafew $
package org.hibernate.event.def;
import org.hibernate.HibernateException;
import org.hibernate.collection.PersistentCollection;
import org.hibernate.engine.SessionImplementor;
import org.hibernate.event.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);
}
}