ComponentHandlers


1   /*
2    * The contents of this file are subject to the terms 
3    * of the Common Development and Distribution License 
4    * (the License).  You may not use this file except in
5    * compliance with the License.
6    * 
7    * You can obtain a copy of the license at 
8    * https://glassfish.dev.java.net/public/CDDLv1.0.html or
9    * glassfish/bootstrap/legal/CDDLv1.0.txt.
10   * See the License for the specific language governing 
11   * permissions and limitations under the License.
12   * 
13   * When distributing Covered Code, include this CDDL 
14   * Header Notice in each file and include the License file 
15   * at glassfish/bootstrap/legal/CDDLv1.0.txt.  
16   * If applicable, add the following below the CDDL Header, 
17   * with the fields enclosed by brackets [] replaced by
18   * you own identifying information: 
19   * "Portions Copyrighted [year] [name of copyright owner]"
20   * 
21   * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
22   */
23  /*
24   * ComponentHandlers.java
25   *
26   * Created on December 6, 2004, 11:06 PM
27   */
28  package com.sun.enterprise.tools.jsfext.event.handlers.basic;
29  
30  import com.sun.enterprise.tools.jsfext.event.handlers.HandlerContext;
31  
32  import java.util.List  ;
33  
34  import javax.faces.component.UIComponent;
35  
36  
37  /**
38   *  <p> This class contains
39   *  {@link com.sun.enterprise.tools.jsfext.event.handlers.Handler}
40   *  methods that perform component functions.</p>
41   *
42   *  @author  Ken Paulsen (ken.paulsen@sun.com)
43   */
44  public class ComponentHandlers {
45  
46      /**
47       *  <p> Default Constructor.</p>
48       */
49      public ComponentHandlers() {
50      }
51  
52      /**
53       *  <p> This handler returns the children of the given
54       *      <code>UIComponent</code>.</p>
55       *
56       *  <p> Input value: "parent" -- Type: <code>UIComponent</code></p>
57       *
58       *  <p> Output value: "children" -- Type: <code>java.util.List</code></p>
59       *  <p> Output value: "size"     -- Type: <code>java.lang.Integer</code></p>
60       *
61       *  @param  context The HandlerContext.
62       */
63      public void getChildren(HandlerContext context) {
64      UIComponent parent = (UIComponent) context.getInputValue("parent");
65      List   list = parent.getChildren();
66      context.setOutputValue("children", list);
67      context.setOutputValue("size", new Integer  (list.size()));
68      }
69  
70      /**
71       *  <p> This handler sets a <code>UIComponent</code> attribute /
72       *      property.</p>
73       *
74       *  <p> Input value: "component" -- Type: <code>UIComponent</code></p>
75       *  <p> Input value: "property" -- Type: <code>String</code></p>
76       *  <p> Input value: "value" -- Type: <code>Object</code></p>
77       *
78       *  @param  context The HandlerContext.
79       */
80      public void setComponentProperty(HandlerContext context) {
81      UIComponent component =
82          (UIComponent) context.getInputValue("component");
83      String   propName = (String  ) context.getInputValue("property");
84      Object   value = context.getInputValue("value");
85  
86      // Set the attribute or property value
87      component.getAttributes().put(propName, value);
88      }
89  }
90
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