| Tuple.java |
1 /**
2 * Copyright (c) 2000-2008 Liferay, Inc. All rights reserved.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a copy
5 * of this software and associated documentation files (the "Software"), to deal
6 * in the Software without restriction, including without limitation the rights
7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
8 * copies of the Software, and to permit persons to whom the Software is
9 * furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20 * SOFTWARE.
21 */
22
23 package com.liferay.portal.kernel.util;
24
25 /**
26 * <a href="Tuple.java.html"><b><i>View Source</i></b></a>
27 *
28 * @author Alexander Chow
29 *
30 */
31 public class Tuple {
32
33 public Tuple(Object obj0, Object obj1) {
34 _array = new Object[] {obj0, obj1};
35 }
36
37 public Tuple(Object obj0, Object obj1, Object obj2) {
38 _array = new Object[] {obj0, obj1, obj2};
39 }
40
41 public Tuple(Object obj0, Object obj1, Object obj2, Object obj3) {
42 _array = new Object[] {obj0, obj1, obj2, obj3};
43 }
44
45 public Tuple(Object[] array) {
46 _array = array;
47 }
48
49 public Object getObject(int i) {
50 return _array[i];
51 }
52
53 public boolean equals(Object obj) {
54 if (!(obj instanceof Tuple)) {
55 return false;
56 }
57
58 Tuple tuple = (Tuple)obj;
59
60 if (tuple._array.length != _array.length) {
61 return false;
62 }
63
64 for (int i = 0; i < _array.length; i++) {
65 if ((tuple._array != null) && (_array[i] != null) &&
66 (!_array[i].equals(tuple._array[i]))) {
67
68 return false;
69 }
70 else if ((tuple._array[i] == null) || (_array[i] == null)) {
71 return false;
72 }
73 }
74
75 return true;
76 }
77
78 public int hashCode() {
79 int hashCode = 0;
80
81 for (int i = 0; i < _array.length; i++) {
82 hashCode = hashCode ^ _array[i].hashCode();
83 }
84
85 return hashCode;
86 }
87
88 private Object[] _array;
89
90 }