1 /*
2 * Copyright 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.osedu.org/licenses/ECL-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 org.kuali.student.common.object;
17
18 /**
19 * @author Kuali Student Team
20 *
21 */
22 public final class KSObjectUtils {
23
24 /**
25 *
26 */
27 private KSObjectUtils() {
28 // intentionally hidden
29 }
30
31 /**
32 * Null-Safe comparison of two Boolean fields.
33 *
34 * @param source Boolean to compare against the target.
35 * @param target Boolean to compare against the source.
36 * @return true if both are null or both are equal; false otherwise.
37 */
38 public static boolean nullSafeBooleanEquals (Boolean source, Boolean target) {
39 return nullSafeObjectEquals(source, target);
40 }
41
42 /**
43 * Null-Safe comparison of two Integer fields.
44 *
45 * @param source Integer to compare against the target.
46 * @param target Integer to compare against the source.
47 * @return true if both are null or both are equal; false otherwise.
48 */
49 public static boolean nullSafeIntegerEquals (Integer source, Integer target) {
50 return nullSafeObjectEquals(source, target);
51 }
52
53 private static boolean nullSafeObjectEquals (Object source, Object target) {
54 if (source == null && target == null) {
55 // both are null
56 return true;
57 }
58 else if (source != null && target != null){
59 return source.equals(target);
60 }
61 else {
62 // one is null
63 return false;
64 }
65 }
66
67 }