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;
018    
019    import javax.jms.JMSException;
020    import javax.jms.Message;
021    import javax.jms.MessageConsumer;
022    import javax.jms.MessageProducer;
023    import 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     */
031    public 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    }