/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* Copyright (c) 2008, Red Hat Middleware LLC 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 Middleware LLC.
*
* 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;
import java.io.Serializable;
import java.util.List;
import org.dom4j.Element;
import org.hibernate.HibernateException;
import org.hibernate.engine.SessionImplementor;
import org.hibernate.persister.collection.CollectionPersister;
import org.hibernate.type.Type;
import org.hibernate.type.XmlRepresentableType;
/**
* @author Gavin King
*/
public class PersistentMapElementHolder extends PersistentIndexedElementHolder {
public PersistentMapElementHolder(SessionImplementor session, Element element) {
super( session, element );
}
public PersistentMapElementHolder(SessionImplementor session, CollectionPersister persister,
Serializable key) throws HibernateException {
super( session, persister, key );
}
public void initializeFromCache(CollectionPersister persister, Serializable disassembled, Object owner)
throws HibernateException {
Type elementType = persister.getElementType();
Type indexType = persister.getIndexType();
final String indexNodeName = getIndexAttributeName(persister);
Serializable[] cached = (Serializable[]) disassembled;
for ( int i=0; i<cached.length; ) {
Object index = indexType.assemble( cached[i++], getSession(), owner );
Object object = elementType.assemble( cached[i++], getSession(), owner );
Element subelement = element.addElement( persister.getElementNodeName() );
elementType.setToXMLNode( subelement, object, persister.getFactory() );
String indexString = ( (XmlRepresentableType) indexType ).toXMLString( index, persister.getFactory() );
setIndex( subelement, indexNodeName, indexString );
}
}
public Serializable disassemble(CollectionPersister persister) throws HibernateException {
Type elementType = persister.getElementType();
Type indexType = persister.getIndexType();
final String indexNodeName = getIndexAttributeName(persister);
List elements = element.elements( persister.getElementNodeName() );
int length = elements.size();
Serializable[] result = new Serializable[length*2];
for ( int i=0; i<length*2; ) {
Element elem = (Element) elements.get(i/2);
Object object = elementType.fromXMLNode( elem, persister.getFactory() );
final String indexString = getIndex(elem, indexNodeName, i);
Object index = ( (XmlRepresentableType) indexType ).fromXMLString( indexString, persister.getFactory() );
result[i++] = indexType.disassemble( index, getSession(), null );
result[i++] = elementType.disassemble( object, getSession(), null );
}
return result;
}
}