001 /* 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache License, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017 package org.apache.commons.configuration.tree; 018 019 /** 020 * <p> 021 * A simple adapter class that simplyfies writing custom node visitor 022 * implementations. 023 * </p> 024 * <p> 025 * This class provides dummy implementations for the methods defined in the 026 * <code>ConfigurationNodeVisitor</code> interface. Derived classes only need 027 * to override the methods they really need. 028 * </p> 029 * 030 * @author Oliver Heger 031 */ 032 public class ConfigurationNodeVisitorAdapter implements 033 ConfigurationNodeVisitor 034 { 035 /** 036 * Empty dummy implementation of this interface method. 037 * 038 * @param node the node 039 */ 040 public void visitBeforeChildren(ConfigurationNode node) 041 { 042 } 043 044 /** 045 * Empty dummy implementation of this interface method. 046 * 047 * @param node the node 048 */ 049 public void visitAfterChildren(ConfigurationNode node) 050 { 051 } 052 053 /** 054 * Dummy implementation of this interface method. Returns always <b>false</b>. 055 * 056 * @return the terminate flag 057 */ 058 public boolean terminate() 059 { 060 return false; 061 } 062 }