KickJava   Java API By Example, From Geeks To Geeks.

Java > Open Source Codes > org > apache > commons > jelly > tags > define > ScriptTag


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.define;
17
18 import org.apache.commons.jelly.JellyTagException;
19 import org.apache.commons.jelly.TagSupport;
20 import org.apache.commons.jelly.XMLOutput;
21
22 /**
23  * <script> tag is used to assign a Script object
24  * to a variable. The script can then be called whenever the user wishes
25  * maybe from inside an expression or more typically via the &lt;invoke&gt; tag.</p>
26  *
27  * @author <a HREF="mailto:jstrachan@apache.org">James Strachan</a>
28  * @version $Revision: 155420 $
29  */
30 public class ScriptTag extends TagSupport {
31
32     private String JavaDoc var;
33
34     public ScriptTag() {
35     }
36
37     // Tag interface
38 //-------------------------------------------------------------------------
39 public void doTag(XMLOutput output) throws JellyTagException {
40         if ( var == null ) {
41             throw new JellyTagException( "<define:script> must have a var attribute" );
42         }
43         context.setVariable( var, getBody() );
44     }
45
46     // Properties
47 //-------------------------------------------------------------------------
48
49     /** @return the variable name of the script to create */
50     public String JavaDoc getVar() {
51         return var;
52     }
53
54     /** Sets the variable name of the tag to create */
55     public void setVar(String JavaDoc var) {
56         this.var = var;
57     }
58 }
59
Popular Tags