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/*******************************************************************************
* Copyright (c) 1998, 2013 Oracle and/or its affiliates. All rights reserved.
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v1.0 and Eclipse Distribution License v. 1.0
* which accompanies this distribution.
* The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v10.html
* and the Eclipse Distribution License is available at
* http://www.eclipse.org/org/documents/edl-v10.php.
*
* Contributors:
* Oracle - initial API and implementation from Oracle TopLink
******************************************************************************/
package org.eclipse.persistence.internal.oxm.documentpreservation;
import java.util.WeakHashMap;
import org.eclipse.persistence.oxm.documentpreservation.AppendNewElementsOrderingPolicy;
/**
* INTERNAL:
* Purpose:Provide an implementation of DocumentPreservation Policy that accesses the
* session cache to store Objects and their associated nodes.
*
Responsibilities:
* - Add new objects and their associated nodes into the Session cache, wrapping them in a weak
* reference.
*
- Lookup the node for a given Object
*
* @author mmacivor
* @since TopLink 11g
*/
public class DescriptorLevelDocumentPreservationPolicy extends AbstractDocumentPreservationPolicy {
public DescriptorLevelDocumentPreservationPolicy() {
super();
nodesToObjects = new WeakHashMap();
objectsToNodes = new WeakHashMap();
this.setNodeOrderingPolicy(new AppendNewElementsOrderingPolicy());
}
}