Save This Page
1 /*
2 * Copyright 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 javax.faces.component;
17
18 import java.io.Serializable;
19 import java.util;
20
21 /**
22 * @author Manfred Geiler (latest modification by $Author: mmarinschek $)
23 * @version $Revision: 265006 $ $Date: 2005-08-31 06:33:56 -0400 (Wed, 31 Aug 2005) $
24 */
25 class _ComponentFacetMap
26 implements Map, Serializable
27 {
28 private static final long serialVersionUID = -3456937594422167629L;
29 private UIComponent _component;
30 private Map _map = new HashMap();
31
32 _ComponentFacetMap(UIComponent component)
33 {
34 _component = component;
35 }
36
37 public int size()
38 {
39 return _map.size();
40 }
41
42 public void clear()
43 {
44 _map.clear();
45 }
46
47 public boolean isEmpty()
48 {
49 return _map.isEmpty();
50 }
51
52 public boolean containsKey(Object key)
53 {
54 checkKey(key);
55 return _map.containsKey(key);
56 }
57
58 public boolean containsValue(Object value)
59 {
60 checkValue(value);
61 return _map.containsValue(value);
62 }
63
64 public Collection values()
65 {
66 return _map.values();
67 }
68
69 public void putAll(Map t)
70 {
71 for (Iterator it = t.entrySet().iterator(); it.hasNext(); )
72 {
73 Map.Entry entry = (Entry)it.next();
74 put(entry.getKey(), entry.getValue());
75 }
76 }
77
78 public Set entrySet()
79 {
80 return _map.entrySet();
81 }
82
83 public Set keySet()
84 {
85 return _map.keySet();
86 }
87
88 public Object get(Object key)
89 {
90 checkKey(key);
91 return _map.get(key);
92 }
93
94 public Object remove(Object key)
95 {
96 checkKey(key);
97 UIComponent facet = (UIComponent)_map.remove(key);
98 if (facet != null) facet.setParent(null);
99 return facet;
100 }
101
102 public Object put(Object key, Object value)
103 {
104 checkKey(key);
105 checkValue(value);
106 setNewParent((String)key, (UIComponent)value);
107 return _map.put(key, value);
108 }
109
110
111 private void setNewParent(String facetName, UIComponent facet)
112 {
113 UIComponent oldParent = facet.getParent();
114 if (oldParent != null)
115 {
116 oldParent.getFacets().remove(facetName);
117 }
118 facet.setParent(_component);
119 }
120
121 private void checkKey(Object key)
122 {
123 if (key == null) throw new NullPointerException("key");
124 if (!(key instanceof String)) throw new ClassCastException("key is not a String");
125 }
126
127 private void checkValue(Object value)
128 {
129 if (value == null) throw new NullPointerException("value");
130 if (!(value instanceof UIComponent)) throw new ClassCastException("value is not a UIComponent");
131 }
132
133 }