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Java > Open Source Codes > org > apache > taglibs > xtags > xpath > OtherwiseTag


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
17 package org.apache.taglibs.xtags.xpath;
18
19 import java.io.IOException JavaDoc;
20
21 import javax.servlet.jsp.tagext.TagSupport JavaDoc;
22
23 /** Behaves like the equivalent XSLT tag.
24   *
25   * @author James Strachan
26   * @version $Revision: 1.2 $
27   */
28 public class OtherwiseTag extends TagSupport JavaDoc {
29     
30     // Tag interface
31 //-------------------------------------------------------------------------
32 public int doStartTag() {
33         ChooseTag tag = (ChooseTag) findAncestorWithClass( this, ChooseTag.class );
34         if ( tag != null && ! tag.isEvaluated() ) {
35             tag.setEvaluated(true);
36             return EVAL_BODY_INCLUDE;
37         }
38         return SKIP_BODY;
39     }
40 }
41
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