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 */ 017 018 package org.apache.commons.proxy.provider; 019 020 import org.apache.commons.proxy.ObjectProvider; 021 022 /** 023 * Returns the result of the inner {@link ObjectProvider provider}. Subclasses can override the {@link #getObject()} 024 * method and decorate what comes back from the inner provider in some way (by {@link SingletonProvider caching it} for 025 * example). 026 * 027 * @author James Carman 028 * @since 1.0 029 */ 030 public class ProviderDecorator implements ObjectProvider 031 { 032 //---------------------------------------------------------------------------------------------------------------------- 033 // Fields 034 //---------------------------------------------------------------------------------------------------------------------- 035 036 protected ObjectProvider inner; 037 038 //---------------------------------------------------------------------------------------------------------------------- 039 // Constructors 040 //---------------------------------------------------------------------------------------------------------------------- 041 042 public ProviderDecorator( ObjectProvider inner ) 043 { 044 this.inner = inner; 045 } 046 047 //---------------------------------------------------------------------------------------------------------------------- 048 // ObjectProvider Implementation 049 //---------------------------------------------------------------------------------------------------------------------- 050 051 public Object getObject() 052 { 053 return inner.getObject(); 054 } 055 } 056