1 /**
2 * Copyright 2005-2013 The Kuali Foundation
3 *
4 * Licensed under the Educational Community 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.opensource.org/licenses/ecl2.php
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.kuali.rice.krad.uif.util;
17
18 import java.util.HashMap;
19 import java.util.Map;
20 import java.util.Set;
21
22 /**
23 * Map implementation takes a <code>Set</code> of Strings and converts to Map
24 * where the string is the map key and value is the Boolean true, convenience
25 * collection for expression language
26 *
27 * @author Kuali Rice Team (rice.collab@kuali.org)
28 */
29 public class BooleanMap extends HashMap<String, Boolean> {
30 private static final long serialVersionUID = 4042557657401395547L;
31
32 public BooleanMap(Map<? extends String, ? extends Boolean> m) {
33 super(m);
34 }
35
36 public BooleanMap(Set<String> keys) {
37 super();
38
39 for (String key : keys) {
40 this.put(key, Boolean.TRUE);
41 }
42 }
43
44 /**
45 * Overrides the get method to return Boolean false if the key does not
46 * exist in the Map
47 *
48 * @see java.util.HashMap#get(java.lang.Object)
49 */
50 @Override
51 public Boolean get(Object key) {
52 if (super.containsKey(key)) {
53 return super.get(key);
54 }
55
56 return Boolean.FALSE;
57 }
58
59 }