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A module of the Hibernate Core project
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/*
 * 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
 * Boston, MA  02110-1301  USA
 */
package org.hibernate.collection.internal;

import java.io.Serializable;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.Iterator;
import java.util.List;

import org.dom4j.Element;

import org.hibernate.AssertionFailure;
import org.hibernate.HibernateException;
import org.hibernate.engine.spi.SessionImplementor;
import org.hibernate.loader.CollectionAliases;
import org.hibernate.persister.collection.CollectionPersister;
import org.hibernate.type.Type;

/**
 * A persistent wrapper for an XML element
 *
 * @author Gavin King
 *
 *
 * @deprecated To be removed in 5.  Removed as part of removing the notion of DOM entity-mode.  See Jira issues
 * HHH-7782 and
 * HHH-7783 for more information.
 */
@Deprecated
public class PersistentElementHolder extends AbstractPersistentCollection {
	protected Element element;

	public PersistentElementHolder(SessionImplementor session, Element element) {
		super(session);
		this.element = element;
		setInitialized();
	}

	public Serializable getSnapshot(CollectionPersister persister)
	throws HibernateException {

		final Type elementType = persister.getElementType();
		List elements = element.elements( persister.getElementNodeName() );
		ArrayList snapshot = new ArrayList( elements.size() );
		for ( int i=0; i= elements.size() ) {
				result.add(old);
			}
			else {
				Element elem = (Element) elements.get(i);
				Object object = elementType.fromXMLNode( elem, persister.getFactory() );
				if ( elementType.isDirty( old, object, getSession() ) ) result.add(old);
			}
		}
		return result.iterator();

	}

	public boolean needsInserting(Object entry, int i, Type elementType)
	throws HibernateException {
		ArrayList snapshot = (ArrayList) getSnapshot();
		return i>=snapshot.size() || elementType.isDirty( snapshot.get(i), entry, getSession() );
	}

	public boolean needsUpdating(Object entry, int i, Type elementType)
	throws HibernateException {
		return false;
	}

	public Object getIndex(Object entry, int i, CollectionPersister persister) {
		throw new UnsupportedOperationException();
	}

	public Object getElement(Object entry) {
		return entry;
	}

	public Object getSnapshotElement(Object entry, int i) {
		throw new UnsupportedOperationException();
	}

	public boolean entryExists(Object entry, int i) {
		return entry!=null;
	}

}