001/* 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache License, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017package org.apache.camel.util; 018 019import java.util.Objects; 020 021/** 022 * Holder for a key and value. 023 */ 024public class KeyValueHolder<K, V> { 025 026 private final K key; 027 private final V value; 028 029 public KeyValueHolder(K key, V value) { 030 this.key = key; 031 this.value = value; 032 } 033 034 public K getKey() { 035 return key; 036 } 037 038 public V getValue() { 039 return value; 040 } 041 042 @Override 043 public boolean equals(Object o) { 044 if (this == o) { 045 return true; 046 } 047 if (o == null || getClass() != o.getClass()) { 048 return false; 049 } 050 KeyValueHolder<?, ?> that = (KeyValueHolder<?, ?>) o; 051 return Objects.equals(key, that.key) 052 && Objects.equals(value, that.value); 053 } 054 055 @Override 056 public int hashCode() { 057 return Objects.hash(key, value); 058 } 059 060 @Override 061 public String toString() { 062 return key + " -> " + value; 063 } 064}