1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one
3 * or more contributor license agreements. See the NOTICE file
4 * distributed with this work for additional information
5 * regarding copyright ownership. The ASF licenses this file
6 * to you under the Apache License, Version 2.0 (the
7 * "License"); you may not use this file except in compliance
8 * with the License. You may obtain a copy of the License at
9 *
10 * http://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing,
13 * software distributed under the License is distributed on an
14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15 * KIND, either express or implied. See the License for the
16 * specific language governing permissions and limitations
17 * under the License.
18 */
19 package org.apache.myfaces.shared.util.el;
20
21 import java.util.Collection;
22 import java.util.Map;
23 import java.util.Set;
24
25 public abstract class GenericMap implements Map
26 {
27
28 /**
29 * This method should return the result of the test.
30 */
31 protected abstract Object getValue(Object key);
32
33 public int size()
34 {
35 return 1;
36 }
37
38 public boolean isEmpty()
39 {
40 return false;
41 }
42
43 public boolean containsKey(Object key)
44 {
45 return true;
46 }
47
48 public boolean containsValue(Object value)
49 {
50 return value instanceof Boolean;
51 }
52
53 public Object get(Object key)
54 {
55 return getValue(key);
56 }
57
58 public Object put(Object key, Object value)
59 {
60 return null;
61 }
62
63 public Object remove(Object key)
64 {
65 return null;
66 }
67
68 public void putAll(Map m)
69 {
70 // NoOp
71 }
72
73 public void clear()
74 {
75 // NoOp
76 }
77
78 public Set keySet()
79 {
80 return null;
81 }
82
83 public Collection values()
84 {
85 return null;
86 }
87
88 public Set entrySet()
89 {
90 return null;
91 }
92 }
93
94