/
MutablePair.java
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/
MutablePair.java
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/*
* Copyright 2015 Austin Keener, Michael Ritter, Florian Spieß, and the JDA contributors
*
* Licensed 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 net.dv8tion.jda.internal.utils.tuple;
/**
* This class has been copied from <a href="https://commons.apache.org/proper/commons-lang/" target="_blank">Lang 3</a>
* <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
*/
public class MutablePair<L, R> extends Pair<L, R>
{
/** 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(final L left, final R right) {
return new MutablePair<>(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(final L left, final R right) {
super();
this.left = left;
this.right = right;
}
@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(final L left) {
this.left = left;
}
@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(final R right) {
this.right = right;
}
}