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 */ 017 package org.apache.camel.util; 018 019 /** 020 * Holder object for a given value. 021 */ 022 public class ValueHolder<V> { 023 private V value; 024 025 /** 026 * @deprecated should be immutable, will be removed in Camel 3.0 027 */ 028 @Deprecated 029 public ValueHolder() { 030 } 031 032 public ValueHolder(V val) { 033 value = val; 034 } 035 036 public V get() { 037 return value; 038 } 039 040 /** 041 * @deprecated should be immutable, will be removed in Camel 3.0 042 */ 043 @Deprecated 044 public void set(V val) { 045 value = val; 046 } 047 048 @Override 049 public boolean equals(Object o) { 050 if (this == o) { 051 return true; 052 } 053 if (o == null || getClass() != o.getClass()) { 054 return false; 055 } 056 057 ValueHolder<?> that = (ValueHolder<?>) o; 058 059 if (value != null ? !value.equals(that.value) : that.value != null) { 060 return false; 061 } 062 063 return true; 064 } 065 066 @Override 067 public int hashCode() { 068 return value != null ? value.hashCode() : 0; 069 } 070 }