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1   /*
2    * $Id: LinkSubscriptionTag.java 471754 2006-11-06 14:55:09Z husted $
3    *
4    * Licensed to the Apache Software Foundation (ASF) under one
5    * or more contributor license agreements.  See the NOTICE file
6    * distributed with this work for additional information
7    * regarding copyright ownership.  The ASF licenses this file
8    * to you under the Apache License, Version 2.0 (the
9    * "License"); you may not use this file except in compliance
10   * with the License.  You may obtain a copy of the License at
11   *
12   *  http://www.apache.org/licenses/LICENSE-2.0
13   *
14   * Unless required by applicable law or agreed to in writing,
15   * software distributed under the License is distributed on an
16   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
17   * KIND, either express or implied.  See the License for the
18   * specific language governing permissions and limitations
19   * under the License.
20   */
21  
22  
23  package org.apache.struts.webapp.example;
24  
25  
26  import javax.faces.component.UIComponent;
27  import javax.faces.context.FacesContext;
28  import javax.faces.el.ValueBinding;
29  import javax.faces.webapp.UIComponentTag;
30  
31  
32  /**
33   * Generate a URL-encoded hyperlink to the specified URI, with
34   * associated query parameters selecting a specified Subscription.
35   *
36   * @author Craig R. McClanahan
37   * @version $Rev: 471754 $ $Date: 2006-11-06 08:55:09 -0600 (Mon, 06 Nov 2006) $
38   */
39  
40  public class LinkSubscriptionTag extends UIComponentTag {
41  
42  
43      // -------------------------------------------------------------- Attributes
44  
45  
46      /**
47       * The attribute name.
48       */
49      protected String name = "subscription";
50  
51      public void setName(String name) {
52          this.name = name;
53      }
54  
55  
56      /**
57       * The context-relative URI.
58       */
59      protected String page = null;
60  
61      public void setPage(String page) {
62          this.page = page;
63      }
64  
65  
66      // ---------------------------------------------------------- Public Methods
67  
68  
69      /**
70       * Return the component type for this tag.</p>
71       */
72      public String getComponentType() {
73  
74          return ("javax.faces.Output");
75  
76      }
77  
78  
79      /**
80       * <p>Return the renderer type associated with this tag.</p>
81       */
82      public String getRendererType() {
83  
84          return ("org.apache.struts.webapp.example.LinkSubscription");
85  
86      }
87  
88  
89      /**
90       * <p>Release resources allocated to this tag instance.</p>
91       */
92      public void release() {
93  
94          super.release();
95          this.name = "subscription";
96          this.page = null;
97  
98      }
99  
100 
101     // ------------------------------------------------------- Protected Methods
102 
103 
104     /**
105      * <p>Override attributes set on this tag instance.</p>
106      *
107      * @param component Component whose attributes should be overridden
108      */
109     protected void setProperties(UIComponent component) {
110 
111         super.setProperties(component);
112         FacesContext context = getFacesContext();
113         if (name != null) {
114             if (isValueReference(name)) {
115                 ValueBinding vb =
116                     context.getApplication().createValueBinding(name);
117                 component.setValueBinding("name", vb);
118             } else {
119                 component.getAttributes().put("name", name);
120             }
121         }
122         if (page != null) {
123             if (isValueReference(page)) {
124                 ValueBinding vb =
125                     context.getApplication().createValueBinding(page);
126                 component.setValueBinding("page", vb);
127             } else {
128                 component.getAttributes().put("page", page);
129             }
130         }
131 
132     }
133 
134 
135 }