View Javadoc

1   /*
2    * $Id: UseAttributeTei.java 421151 2006-07-12 06:07:14Z wsmoak $
3    *
4    * Copyright 1999-2004 The Apache Software Foundation.
5    *
6    * Licensed under the Apache License, Version 2.0 (the "License");
7    * you may not use this file except in compliance with the License.
8    * You may obtain a copy of the License at
9    *
10   *      http://www.apache.org/licenses/LICENSE-2.0
11   *
12   * Unless required by applicable law or agreed to in writing, software
13   * distributed under the License is distributed on an "AS IS" BASIS,
14   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15   * See the License for the specific language governing permissions and
16   * limitations under the License.
17   */
18  
19  
20  package org.apache.struts.tiles.taglib;
21  
22  
23  import javax.servlet.jsp.tagext.TagData;
24  import javax.servlet.jsp.tagext.TagExtraInfo;
25  import javax.servlet.jsp.tagext.VariableInfo;
26  
27  
28  /***
29   * Implementation of <code>TagExtraInfo</code> for the <b>UseAttribute</b>
30   * tag, identifying the scripting object(s) to be made visible.
31   *
32   */
33  
34  public final class UseAttributeTei extends TagExtraInfo {
35  
36  
37      /***
38       * Return information about the scripting variables to be created.
39       */
40      public VariableInfo[] getVariableInfo(TagData data) {
41  
42        String classname = data.getAttributeString("classname");
43        if( classname == null )
44          classname = "java.lang.Object";
45        String id = data.getAttributeString("id");
46        if( id == null )
47          id = data.getAttributeString("name");
48  
49        return new VariableInfo[] {
50        new VariableInfo(id,
51                         classname,
52                         true,
53                         VariableInfo.AT_END)
54    };
55  
56      }
57  
58  
59  }