1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
|
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.commons.lang3.tuple;
/**
* <p>A mutable pair consisting of two {@code Object} elements.</p>
*
* <p>Not #ThreadSafe#</p>
*
* @param <L> the left element type
* @param <R> the right element type
*
* @since Lang 3.0
* @version $Id: MutablePair.java 1127544 2011-05-25 14:35:42Z scolebourne $
*/
public class MutablePair<L, R> extends Pair<L, R> {
/** Serialization version */
private static final long serialVersionUID = 4954918890077093841L;
/** Left object */
public L left;
/** Right object */
public R right;
/**
* <p>Obtains an immutable pair of from two objects inferring the generic types.</p>
*
* <p>This factory allows the pair to be created using inference to
* obtain the generic types.</p>
*
* @param <L> the left element type
* @param <R> the right element type
* @param left the left element, may be null
* @param right the right element, may be null
* @return a pair formed from the two parameters, not null
*/
public static <L, R> MutablePair<L, R> of(L left, R right) {
return new MutablePair<L, R>(left, right);
}
/**
* Create a new pair instance of two nulls.
*/
public MutablePair() {
super();
}
/**
* Create a new pair instance.
*
* @param left the left value, may be null
* @param right the right value, may be null
*/
public MutablePair(L left, R right) {
super();
this.left = left;
this.right = right;
}
//-----------------------------------------------------------------------
/**
* {@inheritDoc}
*/
@Override
public L getLeft() {
return left;
}
/**
* Sets the left element of the pair.
*
* @param left the new value of the left element, may be null
*/
public void setLeft(L left) {
this.left = left;
}
/**
* {@inheritDoc}
*/
@Override
public R getRight() {
return right;
}
/**
* Sets the right element of the pair.
*
* @param right the new value of the right element, may be null
*/
public void setRight(R right) {
this.right = right;
}
/**
* Sets the {@code Map.Entry} value.
* This sets the right element of the pair.
*
* @param value the right value to set, not null
* @return the old value for the right element
*/
public R setValue(R value) {
R result = getRight();
setRight(value);
return result;
}
}
|
