View Javadoc

1   /*
2    * Copyright 2002,2004 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.commons.jelly.tags.core;
17  
18  import org.apache.commons.jelly.JellyTagException;
19  import org.apache.commons.jelly.TagSupport;
20  import org.apache.commons.jelly.XMLOutput;
21  import org.xml.sax.helpers.DefaultHandler;
22  
23  
24  /*** A tag which executes its body but passing no output.
25   *  <p>
26   * Using this tag will still take the time to perform toString on each object
27   * returned to the output (but this toString value is discarded.
28   * A future version should go more internally so that this is avoided.
29   *
30   * @author <a href="mailto:paul@activemath.org">Paul Libbrecht</a>
31   * @version $Revision: 1.2 $
32    */
33  public class MuteTag extends TagSupport {
34  
35      public MuteTag() {
36          super();
37      }
38  
39  
40      public void doTag(XMLOutput output) throws JellyTagException {
41          super.invokeBody(makeMuteOutput());
42      }
43  
44  
45      private XMLOutput makeMuteOutput() {
46          return new XMLOutput(new DefaultHandler());
47      }
48  
49  } // class TagSupport