NestedDefineTei


1   /*
2    * $Id: NestedDefineTei.java 54929 2004-10-16 16:38:42Z germuska $ 
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  package org.apache.struts.taglib.nested.bean;
19  
20  import javax.servlet.jsp.tagext.TagData  ;
21  import javax.servlet.jsp.tagext.VariableInfo  ;
22  
23  import org.apache.struts.taglib.logic.IterateTei;
24  
25  /**
26   * NestedDefineTei to make sure that the implied setting of the name property
27   * of a nested tag is properly handed in the casting of the defined object.
28   * Currently goes to String, but for the purposes of most nested objects they
29   * will benefit more from a simple Object casting.
30   *
31   *
32   * @since Struts 1.1
33   * @version $Rev: 54929 $
34   */
35  
36  public class NestedDefineTei extends IterateTei {
37  
38    /**
39     * Return information about the scripting variables to be created.
40     */
41    public VariableInfo  [] getVariableInfo(TagData   data) {
42      // get the type
43      String   type = (String  )data.getAttribute("type");
44  
45      // make it an object if none supplied
46      if (type == null) {
47        type = "java.lang.Object";
48      }
49  
50      // return the infor about the deined object
51      VariableInfo  [] vinfo = new VariableInfo  [1];
52      vinfo[0] = new VariableInfo  (data.getAttributeString("id"),
53                                  type, true, VariableInfo.AT_END );
54  
55      /* return the results */
56      return vinfo;
57    }
58  }
59
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