| /* |
| * 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.dubbo.admin.common.util; |
| |
| import java.util.Map; |
| |
| public class Pair<K, V> implements Map.Entry<K, V> { |
| |
| private K key; |
| |
| private V value; |
| |
| public Pair() { |
| } |
| |
| public Pair(K key, V value) { |
| this.key = key; |
| this.value = value; |
| } |
| |
| public K getKey() { |
| return key; |
| } |
| |
| public void setKey(K key) { |
| this.key = key; |
| } |
| |
| public V getValue() { |
| return value; |
| } |
| |
| public V setValue(V value) { |
| V old = this.value; |
| this.value = value; |
| return old; |
| } |
| |
| @Override |
| public int hashCode() { |
| final int prime = 31; |
| int result = 1; |
| result = prime * result + ((key == null) ? 0 : key.hashCode()); |
| result = prime * result + ((value == null) ? 0 : value.hashCode()); |
| return result; |
| } |
| |
| @Override |
| public boolean equals(Object obj) { |
| if (this == obj) |
| return true; |
| if (obj == null) |
| return false; |
| if (getClass() != obj.getClass()) |
| return false; |
| Pair<?, ?> other = (Pair<?, ?>) obj; |
| if (key == null) { |
| if (other.key != null) |
| return false; |
| } else if (!key.equals(other.key)) |
| return false; |
| if (value == null) { |
| if (other.value != null) |
| return false; |
| } else if (!value.equals(other.value)) |
| return false; |
| return true; |
| } |
| |
| } |