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 */ 017package org.apache.activemq.broker.region.virtual; 018 019import org.apache.activemq.broker.region.Destination; 020import org.apache.activemq.command.ActiveMQDestination; 021import org.apache.activemq.command.ActiveMQTopic; 022 023/** 024 * Represents a virtual topic which forwards to a number of other destinations. 025 * 026 * @org.apache.xbean.XBean 027 * 028 */ 029public class CompositeTopic extends CompositeDestination { 030 031 @Override 032 public ActiveMQDestination getVirtualDestination() { 033 return new ActiveMQTopic(getName()); 034 } 035 036 @Override 037 public Destination interceptMappedDestination(Destination destination) { 038 if (!isForwardOnly() && destination.getActiveMQDestination().isQueue()) { 039 // recover retroactive messages in mapped Queue 040 return new MappedQueueFilter(getVirtualDestination(), destination); 041 } 042 return destination; 043 } 044 045 @Override 046 public String toString() { 047 return "CompositeTopic [" + getName() + "]"; 048 } 049}