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1   /*
2    * $Id: ELRewriteTagBeanInfo.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  package org.apache.strutsel.taglib.html;
22  
23  import java.beans.IntrospectionException;
24  import java.beans.PropertyDescriptor;
25  import java.beans.SimpleBeanInfo;
26  
27  import java.util.ArrayList;
28  
29  /**
30   * This is the <code>BeanInfo</code> descriptor for the
31   * <code>org.apache.strutsel.taglib.html.ELRewriteTag</code> class.  It is
32   * needed to override the default mapping of custom tag attribute names to
33   * class attribute names. <p> This is because the value of the unevaluated EL
34   * expression has to be kept separately from the evaluated value, which is
35   * stored in the base class. This is related to the fact that the JSP compiler
36   * can choose to reuse different tag instances if they received the same
37   * original attribute values, and the JSP compiler can choose to not re-call
38   * the setter methods, because it can assume the same values are already set.
39   */
40  public class ELRewriteTagBeanInfo extends SimpleBeanInfo {
41      public PropertyDescriptor[] getPropertyDescriptors() {
42          ArrayList proplist = new ArrayList();
43  
44          try {
45              proplist.add(new PropertyDescriptor("action", ELRewriteTag.class,
46                      null, "setActionExpr"));
47          } catch (IntrospectionException ex) {
48          }
49  
50          try {
51              proplist.add(new PropertyDescriptor("module", ELRewriteTag.class,
52                      null, "setModuleExpr"));
53          } catch (IntrospectionException ex) {
54          }
55  
56          try {
57              proplist.add(new PropertyDescriptor("anchor", ELRewriteTag.class,
58                      null, "setAnchorExpr"));
59          } catch (IntrospectionException ex) {
60          }
61  
62          try {
63              proplist.add(new PropertyDescriptor("forward", ELRewriteTag.class,
64                      null, "setForwardExpr"));
65          } catch (IntrospectionException ex) {
66          }
67  
68          try {
69              proplist.add(new PropertyDescriptor("href", ELRewriteTag.class,
70                      null, "setHrefExpr"));
71          } catch (IntrospectionException ex) {
72          }
73  
74          try {
75              proplist.add(new PropertyDescriptor("name", ELRewriteTag.class,
76                      null, "setNameExpr"));
77          } catch (IntrospectionException ex) {
78          }
79  
80          try {
81              proplist.add(new PropertyDescriptor("page", ELRewriteTag.class,
82                      null, "setPageExpr"));
83          } catch (IntrospectionException ex) {
84          }
85  
86          try {
87              proplist.add(new PropertyDescriptor("paramId", ELRewriteTag.class,
88                      null, "setParamIdExpr"));
89          } catch (IntrospectionException ex) {
90          }
91  
92          try {
93              proplist.add(new PropertyDescriptor("paramName",
94                      ELRewriteTag.class, null, "setParamNameExpr"));
95          } catch (IntrospectionException ex) {
96          }
97  
98          try {
99              proplist.add(new PropertyDescriptor("paramProperty",
100                     ELRewriteTag.class, null, "setParamPropertyExpr"));
101         } catch (IntrospectionException ex) {
102         }
103 
104         try {
105             proplist.add(new PropertyDescriptor("paramScope",
106                     ELRewriteTag.class, null, "setParamScopeExpr"));
107         } catch (IntrospectionException ex) {
108         }
109 
110         try {
111             proplist.add(new PropertyDescriptor("property", ELRewriteTag.class,
112                     null, "setPropertyExpr"));
113         } catch (IntrospectionException ex) {
114         }
115 
116         try {
117             proplist.add(new PropertyDescriptor("scope", ELRewriteTag.class,
118                     null, "setScopeExpr"));
119         } catch (IntrospectionException ex) {
120         }
121 
122         try {
123             proplist.add(new PropertyDescriptor("transaction",
124                     ELRewriteTag.class, null, "setTransactionExpr"));
125         } catch (IntrospectionException ex) {
126         }
127 
128         try {
129             proplist.add(new PropertyDescriptor("useLocalEncoding",
130                     ELRewriteTag.class, null, "setUseLocalEncodingExpr"));
131         } catch (IntrospectionException ex) {
132         }
133 
134         PropertyDescriptor[] result = new PropertyDescriptor[proplist.size()];
135 
136         return ((PropertyDescriptor[]) proplist.toArray(result));
137     }
138 }