| /******************************************************************************* |
| * 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.ofbiz.base.util.collections; |
| |
| import java.util.Map; |
| |
| import org.apache.ofbiz.base.util.UtilObject; |
| |
| /** this class can go away when ofbiz switches to java 1.6, replaced by |
| * AbstractMap.SimpleImmutableEntry |
| */ |
| public class ReadOnlyMapEntry<K, V> implements Map.Entry<K, V> { |
| protected final K key; |
| protected final V value; |
| |
| public ReadOnlyMapEntry(K key, V value) { |
| this.key = key; |
| this.value = value; |
| } |
| |
| public K getKey() { |
| return key; |
| } |
| |
| public V getValue() { |
| return value; |
| } |
| |
| public V setValue(V value) { |
| throw new UnsupportedOperationException(); |
| } |
| |
| @Override |
| public boolean equals(Object o) { |
| if (!(o instanceof Map.Entry<?, ?>)) return false; |
| if (this == o) return true; |
| Map.Entry<?, ?> other = (Map.Entry<?, ?>) o; |
| return UtilObject.equalsHelper(getKey(), other.getKey()) && UtilObject.equalsHelper(getValue(), other.getValue()); |
| } |
| |
| @Override |
| public int hashCode() { |
| return UtilObject.doHashCode(getKey()) ^ UtilObject.doHashCode(getValue()); |
| } |
| } |