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; 018 019import javax.jms.JMSException; 020import javax.jms.Message; 021import javax.jms.MessageConsumer; 022import javax.jms.MessageProducer; 023import javax.jms.Session; 024 025/** 026 * A plugin strategy for transforming a message before it is sent by the JMS client or before it is 027 * dispatched to the JMS consumer 028 * 029 * 030 */ 031public interface MessageTransformer { 032 033 /** 034 * Transforms the given message inside the producer before it is sent to the JMS bus. 035 */ 036 Message producerTransform(Session session, MessageProducer producer, Message message) throws JMSException; 037 038 /** 039 * Transforms the given message inside the consumer before being dispatched to the client code 040 */ 041 Message consumerTransform(Session session, MessageConsumer consumer, Message message)throws JMSException; 042}