BaseMap


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  package org.apache.cocoon.faces.context;
17  
18  import java.util.Map  ;
19  import java.util.Set  ;
20  
21  /**
22   * Base class for JSF context maps
23   *
24   * @author <a HREF="mailto:vgritsenko@apache.org">Vadim Gritsenko</a>
25   * @version CVS $Id: BaseMap.java 46253 2004-09-17 14:36:29Z vgritsenko $
26   */
27  abstract class BaseMap extends java.util.AbstractMap   {
28  
29      static class Entry implements Map.Entry   {
30          private final Object   key;
31          private final Object   value;
32  
33          Entry(Object   key, Object   value) {
34              this.key = key;
35              this.value = value;
36          }
37  
38          public Object   getKey() {
39              return key;
40          }
41  
42          public Object   getValue() {
43              return value;
44          }
45  
46          public Object   setValue(Object   value) {
47              throw new UnsupportedOperationException  ();
48          }
49  
50          public int hashCode() {
51              return (key != null ? key.hashCode() : 0) ^ (value != null ? value.hashCode() : 0);
52          }
53  
54          public boolean equals(Object   obj) {
55              if (obj == null || !(obj instanceof Map.Entry  )) {
56                  return false;
57              }
58  
59              Map.Entry   other = (Map.Entry  ) obj;
60              Object   key = other.getKey();
61              if (key == this.key || key != null && key.equals(this.key)) {
62                  Object   value = other.getValue();
63                  return value == this.value || value != null && value.equals(this.value);
64              }
65              return false;
66          }
67      }
68  
69  
70      BaseMap() {
71      }
72  
73      public void clear() {
74          throw new UnsupportedOperationException  ();
75      }
76  
77      public void putAll(Map   t) {
78          throw new UnsupportedOperationException  ();
79      }
80  
81      public Object   remove(Object   key) {
82          throw new UnsupportedOperationException  ();
83      }
84  
85      public Set   entrySet() {
86          throw new UnsupportedOperationException  ();
87      }
88  }
89
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