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.ra; 018 019 import javax.jms.JMSException; 020 import javax.jms.MessageProducer; 021 import javax.jms.Session; 022 023 /** 024 * Represents an object which has-a {@link Session} instance and 025 * an optional, lazily created {@link MessageProducer} instance 026 * which can them be used by a pooling based JMS provider for publishing 027 * messages using the session used by the current thread. 028 * 029 * 030 */ 031 public interface InboundContext { 032 033 /** 034 * Returns the current session being used to process a JMS message in the current thread. 035 */ 036 Session getSession() throws JMSException; 037 038 /** 039 * Lazily creates a message producer that can be used to send messages using the 040 * same JMS Session which is being used to dispatch messages which minimises the XA 041 * overheard of consuming and producing or allows JMS transactions to be used for consuming 042 * and producing messages. 043 * 044 * @return the current message producer or a new one is lazily created, using a null 045 * destination so the destination must be specified on a send() method. 046 * @throws javax.jms.JMSException 047 */ 048 MessageProducer getMessageProducer() throws JMSException; 049 }