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65 lines
1.7 KiB
Java
65 lines
1.7 KiB
Java
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/**
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*
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* Copyright 2020 Florian Schmaus.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.jivesoftware.smack.util;
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public final class Pair<F, S> {
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private final F first;
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private final S second;
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private Pair(F first, S second) {
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this.first = first;
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this.second = second;
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}
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public static <F extends Object, S extends Object> Pair<F, S> create(F first, S second) {
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return new Pair<>(first, second);
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}
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public static <F extends Object, S extends Object> Pair<F, S> createAndInitHashCode(F first, S second) {
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Pair<F, S> pair = new Pair<>(first, second);
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pair.hashCode();
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return pair;
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}
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public F getFirst() {
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return first;
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}
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public S getSecond() {
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return second;
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}
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private final HashCode.Cache hashCodeCache = new HashCode.Cache();
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@Override
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public int hashCode() {
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return hashCodeCache.getHashCode(c ->
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c.append(first)
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.append(second)
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);
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}
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@Override
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public boolean equals(Object object) {
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return EqualsUtil.equals(this, object, (e, o) ->
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e.append(first, o.first)
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.append(second, o.second)
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);
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}
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}
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