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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
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* Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
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* The contents of this file are subject to the terms of either the GNU
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* General Public License Version 2 only ("GPL") or the Common
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* Development and Distribution License("CDDL") (collectively, the
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* "License"). You may not use this file except in compliance with the
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* License. You can obtain a copy of the License at
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* http://www.netbeans.org/cddl-gplv2.html
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* or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the
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* specific language governing permissions and limitations under the
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* License. When distributing the software, include this License Header
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* Notice in each file and include the License file at
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* nbbuild/licenses/CDDL-GPL-2-CP. Sun designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Sun in the GPL Version 2 section of the License file that
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* accompanied this code. If applicable, add the following below the
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* License Header, with the fields enclosed by brackets [] replaced by
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* your own identifying information:
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* "Portions Copyrighted [year] [name of copyright owner]"
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* The Original Software is NetBeans. The Initial Developer of the Original
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* Software is Sun Microsystems, Inc. Portions Copyright 1997-2006 Sun
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* Microsystems, Inc. All Rights Reserved.
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* If you wish your version of this file to be governed by only the CDDL
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* "[Contributor] elects to include this software in this distribution
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* your version of this file under either the CDDL, the GPL Version 2 or
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* to extend the choice of license to its licensees as provided above.
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* However, if you add GPL Version 2 code and therefore, elected the GPL
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* made subject to such option by the copyright holder.
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package org.netbeans.modules.xml.xdm.diff;
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import java.util.ArrayList;
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import java.util.List;
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import org.netbeans.modules.xml.xdm.nodes.Document;
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import org.netbeans.modules.xml.xdm.nodes.Node;
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* This class represents diff between 2 elements of 2 XML documents
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public abstract class Difference {
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/** Creates a new instance of DiffEvent */
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public Difference(NodeInfo.NodeType nodeType,
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List<Node> ancestors1, List<Node> ancestors2,
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Node n1, Node n2, int n1Pos, int n2Pos) {
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this.nodeType = nodeType;
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if (! (n1 instanceof Document)) {
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assert ancestors1 != null && ! ancestors1.isEmpty() : "diff of non-root should have ancestors";
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this.oldNodeInfo = new NodeInfo( n1, n1Pos, ancestors1, ancestors2);
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this.newNodeInfo = new NodeInfo( n2, n2Pos, new ArrayList(ancestors1), new ArrayList(ancestors2));
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if (newNodeInfo.getNode() != null && newNodeInfo.getNewAncestors().size() > 0) {
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assert newNodeInfo.getNewAncestors().get(0).getId() != newNodeInfo.getNode().getId();
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public NodeInfo.NodeType getNodeType() {
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* @returns info on removed node.
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public NodeInfo getOldNodeInfo() {
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* @return info on added node.
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public NodeInfo getNewNodeInfo() {
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* @return new path from parent to root.
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public abstract List<Node> getNewAncestors();
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public abstract void setNewParent(Node n);
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public abstract Node getNewParent();
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////////////////////////////////////////////////////////////////////////////////
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////////////////////////////////////////////////////////////////////////////////
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private NodeInfo.NodeType nodeType;
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private NodeInfo oldNodeInfo;
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private NodeInfo newNodeInfo;