| /******************************************************************************* | |
| * 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: | |
| * <p><b>Purpose:</b>Provide an implementation of DocumentPreservation Policy that accesses the | |
| * session cache to store Objects and their associated nodes. | |
| * <p><b>Responsibilities:</b><ul> | |
| * <li>Add new objects and their associated nodes into the Session cache, wrapping them in a weak | |
| * reference. | |
| * <li>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()); | |
| } | |
| } |