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Java > Open Source Codes > org > apache > commons > jelly > tags > core > ScopeTag


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.JellyContext;
19 import org.apache.commons.jelly.JellyTagException;
20 import org.apache.commons.jelly.TagSupport;
21 import org.apache.commons.jelly.XMLOutput;
22
23 /**
24  * A tag which creates a new child variable scope for its body.
25  * So any variables defined within its body will no longer be in scope
26  * after this tag.
27  *
28  * @author <a HREF="mailto:jstrachan@apache.org">James Strachan</a>
29  * @version $Revision: 155420 $
30  */
31 public class ScopeTag extends TagSupport {
32
33     // Tag interface
34 //-------------------------------------------------------------------------
35 public void doTag(XMLOutput output) throws JellyTagException {
36         JellyContext newContext = context.newJellyContext();
37         getBody().run(newContext, output);
38     }
39 }
40
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