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.Set;
20
21 /**
22 * Map implementation takes a <code>Set</code> of Strings and converts to Map
23 * where the string is the map key and value is the Boolean true, convenience
24 * collection for expression language
25 *
26 * @author Kuali Rice Team (rice.collab@kuali.org)
27 */
28 public class BooleanMap extends HashMap<String, Boolean> {
29 private static final long serialVersionUID = 4042557657401395547L;
30
31 public BooleanMap(Set<String> keys) {
32 super();
33
34 for (String key : keys) {
35 this.put(key, Boolean.TRUE);
36 }
37 }
38
39 /**
40 * Overrides the get method to return Boolean false if the key does not
41 * exist in the Map
42 *
43 * @see java.util.HashMap#get(java.lang.Object)
44 */
45 @Override
46 public Boolean get(Object key) {
47 if (super.containsKey(key)) {
48 return super.get(key);
49 }
50
51 return Boolean.FALSE;
52 }
53
54 }