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Java > Open Source Codes > org > apache > cocoon > components > treeprocessor > NullNode


1 /*
2  * Copyright 1999-2004 The Apache Software Foundation.
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  * http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 package org.apache.cocoon.components.treeprocessor;
17
18 import org.apache.cocoon.environment.Environment;
19
20 /**
21  * A no-op node to stub not yet implemented features.
22  *
23  * @author <a HREF="mailto:sylvain@apache.org">Sylvain Wallez</a>
24  * @version CVS $Id: NullNode.java 30932 2004-07-29 17:35:38Z vgritsenko $
25  */
26
27 public class NullNode extends AbstractProcessingNode {
28
29     public final boolean invoke(Environment env, InvokeContext context) throws Exception JavaDoc {
30
31         getLogger().warn("Invoke on NullNode at " + getLocation());
32         return false;
33
34     }
35 }
36
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