org.hibernate.collection.internal.PersistentIndexedElementHolder 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
* 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.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import org.hibernate.AssertionFailure;
import org.hibernate.HibernateException;
import org.hibernate.engine.spi.SessionFactoryImplementor;
import org.hibernate.engine.spi.SessionImplementor;
import org.hibernate.loader.CollectionAliases;
import org.hibernate.persister.collection.CollectionPersister;
import org.hibernate.type.Type;
import org.hibernate.type.XmlRepresentableType;
import org.dom4j.Element;
/**
* 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 abstract class PersistentIndexedElementHolder extends AbstractPersistentCollection {
protected Element element;
/**
* Constructs a PersistentIndexedElementHolder.
*
* @param session The session
* @param element The DOM element being wrapped
*/
public PersistentIndexedElementHolder(SessionImplementor session, Element element) {
super( session );
this.element = element;
setInitialized();
}
/**
* Constructs a PersistentIndexedElementHolder.
*
* @param session The session
* @param persister The collection persister
* @param key The collection key (fk value)@throws HibernateException
*/
public PersistentIndexedElementHolder(SessionImplementor session, CollectionPersister persister, Serializable key) {
super( session );
final Element owner = (Element) session.getPersistenceContext().getCollectionOwner( key, persister );
if ( owner == null ) {
throw new AssertionFailure( "null owner" );
}
final String nodeName = persister.getNodeName();
if ( ".".equals( nodeName ) ) {
element = owner;
}
else {
element = owner.element( nodeName );
if ( element == null ) {
element = owner.addElement( nodeName );
}
}
}
/**
* A struct representing the index/value pair.
*/
public static final class IndexedValue {
final String index;
final Object value;
IndexedValue(String index, Object value) {
this.index = index;
this.value = value;
}
}
protected static String getIndex(Element element, String indexNodeName, int i) {
if ( indexNodeName != null ) {
return element.attributeValue( indexNodeName );
}
else {
return Integer.toString( i );
}
}
protected static void setIndex(Element element, String indexNodeName, String index) {
if ( indexNodeName != null ) {
element.addAttribute( indexNodeName, index );
}
}
protected static String getIndexAttributeName(CollectionPersister persister) {
final String node = persister.getIndexNodeName();
return node == null ? null : node.substring( 1 );
}
@Override
@SuppressWarnings({"unchecked", "deprecation"})
public Serializable getSnapshot(CollectionPersister persister) throws HibernateException {
final Type elementType = persister.getElementType();
final String indexNode = getIndexAttributeName( persister );
final List elements = element.elements( persister.getElementNodeName() );
final HashMap snapshot = new HashMap( elements.size() );
for ( int i=0; i