/** * 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 com.alibaba.jstorm.utils; import java.io.Serializable; import java.util.Objects; public class Pair<F, S> implements Serializable { private static final long serialVersionUID = -5514532854805616133L; private F first; private S second; public Pair() { } public Pair(F first, S second) { this.first = first; this.second = second; } public F getFirst() { return first; } public void setFirst(F first) { this.first = first; } public S getSecond() { return second; } public void setSecond(S second) { this.second = second; } @Override public boolean equals(Object other) { if (this == other) { return true; } if (!(other instanceof Pair)) { return false; } Pair<?, ?> otherPair = (Pair<?, ?>) other; // Arrays are very common as values and keys, so deepEquals is mandatory return Objects.deepEquals(this.first, otherPair.first) && Objects.deepEquals(this.second, otherPair.second); } @Override public int hashCode() { return Objects.hash(first, second); } @Override public String toString() { StringBuilder sb = new StringBuilder(); sb.append("first:" + first); sb.append(":"); sb.append("second:" + second); return sb.toString(); } }