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1   /*
2    * Copyright 1999-2004 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  
17  
18  package org.apache.struts.webapp.example;
19  
20  
21  import javax.faces.component.UIComponent;
22  import javax.faces.context.FacesContext;
23  import javax.faces.el.ValueBinding;
24  import javax.faces.webapp.UIComponentTag;
25  
26  
27  /***
28   * Generate a URL-encoded hyperlink to the specified URI, with
29   * associated query parameters selecting a specified Subscription.
30   *
31   * @author Craig R. McClanahan
32   * @version $Rev: 421493 $ $Date: 2006-07-12 20:52:31 -0700 (Wed, 12 Jul 2006) $
33   */
34  
35  public class LinkSubscriptionTag extends UIComponentTag {
36  
37  
38      // -------------------------------------------------------------- Attributes
39  
40  
41      /***
42       * The attribute name.
43       */
44      protected String name = "subscription";
45  
46      public void setName(String name) {
47          this.name = name;
48      }
49  
50  
51      /***
52       * The context-relative URI.
53       */
54      protected String page = null;
55  
56      public void setPage(String page) {
57          this.page = page;
58      }
59  
60  
61      // ---------------------------------------------------------- Public Methods
62  
63  
64      /***
65       * Return the component type for this tag.</p>
66       */
67      public String getComponentType() {
68  
69          return ("javax.faces.Output");
70  
71      }
72  
73  
74      /***
75       * <p>Return the renderer type associated with this tag.</p>
76       */
77      public String getRendererType() {
78  
79          return ("org.apache.struts.webapp.example.LinkSubscription");
80  
81      }
82  
83  
84      /***
85       * <p>Release resources allocated to this tag instance.</p>
86       */
87      public void release() {
88  
89          super.release();
90          this.name = "subscription";
91          this.page = null;
92  
93      }
94  
95  
96      // ------------------------------------------------------- Protected Methods
97  
98  
99      /***
100      * <p>Override attributes set on this tag instance.</p>
101      *
102      * @param component Component whose attributes should be overridden
103      */
104     protected void setProperties(UIComponent component) {
105 
106         super.setProperties(component);
107         FacesContext context = getFacesContext();
108         if (name != null) {
109             if (isValueReference(name)) {
110                 ValueBinding vb =
111                     context.getApplication().createValueBinding(name);
112                 component.setValueBinding("name", vb);
113             } else {
114                 component.getAttributes().put("name", name);
115             }
116         }
117         if (page != null) {
118             if (isValueReference(page)) {
119                 ValueBinding vb =
120                     context.getApplication().createValueBinding(page);
121                 component.setValueBinding("page", vb);
122             } else {
123                 component.getAttributes().put("page", page);
124             }
125         }
126 
127     }
128 
129 
130 }