01: /*
02: * Copyright 1999-2004 The Apache Software Foundation
03: *
04: * Licensed under the Apache License, Version 2.0 (the "License");
05: * you may not use this file except in compliance with the License.
06: * You may obtain a copy of the License at
07: *
08: * http://www.apache.org/licenses/LICENSE-2.0
09: *
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.commons.jxpath;
17:
18: import java.util.Iterator;
19: import java.util.Map;
20: import java.util.Set;
21:
22: /**
23: * Implements the DynamicPropertyHandler interface for java.util.Map.
24: *
25: * @author Dmitri Plotnikov
26: * @version $Revision: 1.7 $ $Date: 2004/03/02 01:03:14 $
27: */
28: public class MapDynamicPropertyHandler implements
29: DynamicPropertyHandler {
30:
31: private static final String[] STRING_ARRAY = new String[0];
32:
33: /**
34: * Returns string representations of all keys in the map.
35: */
36: public String[] getPropertyNames(Object object) {
37: Map map = (Map) object;
38: Set set = map.keySet();
39: String names[] = new String[set.size()];
40: Iterator it = set.iterator();
41: for (int i = 0; i < names.length; i++) {
42: names[i] = String.valueOf(it.next());
43: }
44: return names;
45: }
46:
47: /**
48: * Returns the value for the specified key.
49: */
50: public Object getProperty(Object object, String propertyName) {
51: return ((Map) object).get(propertyName);
52: }
53:
54: /**
55: * Sets the specified key value.
56: */
57: public void setProperty(Object object, String propertyName,
58: Object value) {
59: ((Map) object).put(propertyName, value);
60: }
61: }
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