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.activemq.store; 018 019 import java.io.IOException; 020 import org.apache.activemq.broker.ConnectionContext; 021 import org.apache.activemq.command.ActiveMQDestination; 022 import org.apache.activemq.command.Message; 023 import org.apache.activemq.command.MessageAck; 024 import org.apache.activemq.command.MessageId; 025 import org.apache.activemq.usage.MemoryUsage; 026 027 /** 028 * A simple proxy that delegates to another MessageStore. 029 */ 030 public class ProxyMessageStore implements MessageStore { 031 032 final MessageStore delegate; 033 034 public ProxyMessageStore(MessageStore delegate) { 035 this.delegate = delegate; 036 } 037 038 public MessageStore getDelegate() { 039 return delegate; 040 } 041 042 public void addMessage(ConnectionContext context, Message message) throws IOException { 043 delegate.addMessage(context, message); 044 } 045 046 public Message getMessage(MessageId identity) throws IOException { 047 return delegate.getMessage(identity); 048 } 049 050 public void recover(MessageRecoveryListener listener) throws Exception { 051 delegate.recover(listener); 052 } 053 054 public void removeAllMessages(ConnectionContext context) throws IOException { 055 delegate.removeAllMessages(context); 056 } 057 058 public void removeMessage(ConnectionContext context, MessageAck ack) throws IOException { 059 delegate.removeMessage(context, ack); 060 } 061 062 public void start() throws Exception { 063 delegate.start(); 064 } 065 066 public void stop() throws Exception { 067 delegate.stop(); 068 } 069 070 public void dispose(ConnectionContext context) { 071 delegate.dispose(context); 072 } 073 074 public ActiveMQDestination getDestination() { 075 return delegate.getDestination(); 076 } 077 078 public void setMemoryUsage(MemoryUsage memoryUsage) { 079 delegate.setMemoryUsage(memoryUsage); 080 } 081 082 public int getMessageCount() throws IOException { 083 return delegate.getMessageCount(); 084 } 085 086 public void recoverNextMessages(int maxReturned, MessageRecoveryListener listener) throws Exception { 087 delegate.recoverNextMessages(maxReturned, listener); 088 089 } 090 091 public void resetBatching() { 092 delegate.resetBatching(); 093 094 } 095 096 public void setBatch(MessageId messageId) throws Exception { 097 delegate.setBatch(messageId); 098 } 099 100 public boolean isEmpty() throws Exception { 101 return delegate.isEmpty(); 102 } 103 }