001 /* 002 * JBoss DNA (http://www.jboss.org/dna) 003 * See the COPYRIGHT.txt file distributed with this work for information 004 * regarding copyright ownership. Some portions may be licensed 005 * to Red Hat, Inc. under one or more contributor license agreements. 006 * See the AUTHORS.txt file in the distribution for a full listing of 007 * individual contributors. 008 * 009 * Unless otherwise indicated, all code in JBoss DNA is licensed 010 * to you under the terms of the GNU Lesser General Public License as 011 * published by the Free Software Foundation; either version 2.1 of 012 * the License, or (at your option) any later version. 013 * 014 * JBoss DNA is distributed in the hope that it will be useful, 015 * but WITHOUT ANY WARRANTY; without even the implied warranty of 016 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 017 * Lesser General Public License for more details. 018 * 019 * You should have received a copy of the GNU Lesser General Public 020 * License along with this software; if not, write to the Free 021 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 022 * 02110-1301 USA, or see the FSF site: http://www.fsf.org. 023 */ 024 package org.jboss.dna.graph.request; 025 026 import org.jboss.dna.graph.Location; 027 import org.jboss.dna.graph.property.Path; 028 029 /** 030 * A Request to make changes in a graph. 031 */ 032 public abstract class ChangeRequest extends Request { 033 034 private static final long serialVersionUID = 1L; 035 036 protected ChangeRequest() { 037 } 038 039 /** 040 * Determine if this request changes the branch at the given path. 041 * 042 * @param workspace the name of the workspace; may not be null 043 * @param path the path; may not be null 044 * @return true if this request changes a node under the given path 045 */ 046 public abstract boolean changes( String workspace, 047 Path path ); 048 049 /** 050 * Get the location of the top-most node that is to be changed by this request. 051 * 052 * @return the location changed by this request 053 */ 054 public abstract Location changedLocation(); 055 056 /** 057 * Get the name of the workspace that was changed by this request. 058 * 059 * @return the name of the workspace changed by this request 060 */ 061 public abstract String changedWorkspace(); 062 }