ParamHandler


1   /**
2    * Licensed under the Common Development and Distribution License,
3    * you may not use this file except in compliance with the License.
4    * You may obtain a copy of the License at
5    * 
6    *   http://www.sun.com/cddl/
7    *   
8    * Unless required by applicable law or agreed to in writing, software
9    * distributed under the License is distributed on an "AS IS" BASIS,
10   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or 
11   * implied. See the License for the specific language governing
12   * permissions and limitations under the License.
13   */
14  
15  package com.sun.facelets.tag.ui;
16  
17  import java.io.IOException  ;
18  
19  import javax.el.ELException;
20  import javax.el.ValueExpression;
21  import javax.faces.FacesException;
22  import javax.faces.component.UIComponent;
23  
24  import com.sun.facelets.FaceletContext;
25  import com.sun.facelets.FaceletException;
26  import com.sun.facelets.tag.TagAttribute;
27  import com.sun.facelets.tag.TagConfig;
28  import com.sun.facelets.tag.TagHandler;
29  
30  /**
31   * @author Jacob Hookom
32   * @version $Id: ParamHandler.java,v 1.5 2005/10/30 01:35:51 jhook Exp $
33   */
34  public class ParamHandler extends TagHandler {
35  
36      private final TagAttribute name;
37  
38      private final TagAttribute value;
39  
40      /**
41       * @param config
42       */
43      public ParamHandler(TagConfig config) {
44          super(config);
45          this.name = this.getRequiredAttribute("name");
46          this.value = this.getRequiredAttribute("value");
47      }
48  
49      /*
50       * (non-Javadoc)
51       * 
52       * @see com.sun.facelets.FaceletHandler#apply(com.sun.facelets.FaceletContext,
53       *      javax.faces.component.UIComponent)
54       */
55      public void apply(FaceletContext ctx, UIComponent parent)
56              throws IOException  , FacesException, FaceletException, ELException {
57          String   nameStr = this.name.getValue(ctx);
58          ValueExpression valueVE = this.value.getValueExpression(ctx,
59                  Object  .class);
60          ctx.getVariableMapper().setVariable(nameStr, valueVE);
61      }
62  
63  }
64
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