1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one or more
3 * contributor license agreements. See the NOTICE file distributed with
4 * this work for additional information regarding copyright ownership.
5 * The ASF licenses this file to You under the Apache License, Version 2.0
6 * (the "License"); you may not use this file except in compliance with
7 * the License. You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17 package org.apache.commons.configuration.tree;
18
19 /**
20 * <p>
21 * A simple adapter class that simplyfies writing custom node visitor
22 * implementations.
23 * </p>
24 * <p>
25 * This class provides dummy implementations for the methods defined in the
26 * <code>ConfigurationNodeVisitor</code> interface. Derived classes only need
27 * to override the methods they really need.
28 * </p>
29 *
30 * @author Oliver Heger
31 */
32 public class ConfigurationNodeVisitorAdapter implements
33 ConfigurationNodeVisitor
34 {
35 /**
36 * Empty dummy implementation of this interface method.
37 *
38 * @param node the node
39 */
40 public void visitBeforeChildren(ConfigurationNode node)
41 {
42 }
43
44 /**
45 * Empty dummy implementation of this interface method.
46 *
47 * @param node the node
48 */
49 public void visitAfterChildren(ConfigurationNode node)
50 {
51 }
52
53 /**
54 * Dummy implementation of this interface method. Returns always <b>false</b>.
55 *
56 * @return the terminate flag
57 */
58 public boolean terminate()
59 {
60 return false;
61 }
62 }