jmsqueuesession.java

来自「OpenJMS是一个开源的Java Message Service API 1.」· Java 代码 · 共 171 行

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 *    please contact [e-mail].
 *
 * 4. Products derived from this Software may not be called "Exolab"
 *    nor may "Exolab" appear in their names without prior written
 *    permission of Exoffice Technologies. Exolab is a registered
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 * 5. Due credit should be given to the Exolab Project
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 *
 * THIS SOFTWARE IS PROVIDED BY EXOFFICE TECHNOLOGIES AND CONTRIBUTORS
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 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 * OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 * Copyright 2000-2005 (C) Exoffice Technologies Inc. All Rights Reserved.
 */
package org.exolab.jms.client;

import javax.jms.JMSException;
import javax.jms.Queue;
import javax.jms.QueueReceiver;
import javax.jms.QueueSender;
import javax.jms.QueueSession;
import javax.jms.TemporaryTopic;
import javax.jms.Topic;
import javax.jms.TopicSubscriber;


/**
 * Client implementation of the <code>javax.jms.QueueSession</code> interface.
 *
 * @author <a href="mailto:[e-mail]">Jim Alateras</a>
 * @version $Revision: 1.2 $ $Date: 2005/03/18 03:36:37 $
 */
class JmsQueueSession
        extends JmsSession
        implements QueueSession {

    /**
     * Construct a new <code>JmsQueueSession</code>.
     *
     * @param connection the owner of the session
     * @param transacted if <code>true</code>, the session is transacted.
     * @param ackMode    indicates whether the consumer or the client will
     *                   acknowledge any messages it receives. This parameter
     *                   will be ignored if the session is transacted. Legal
     *                   values are <code>Session.AUTO_ACKNOWLEDGE</code>,
     *                   <code>Session.CLIENT_ACKNOWLEDGE</code> and
     *                   <code>Session.DUPS_OK_ACKNOWLEDGE</code>.
     * @throws JMSException if the session cannot be created
     */
    public JmsQueueSession(JmsQueueConnection connection, boolean transacted,
                           int ackMode) throws JMSException {
        super(connection, transacted, ackMode);
    }

    /**
     * Create a receiver to receive messages from the specified queue.
     *
     * @param queue the queue to access
     * @return the new receiver
     * @throws JMSException if the receiver cannot be created
     */
    public QueueReceiver createReceiver(Queue queue) throws JMSException {
        return createReceiver(queue, null);
    }

    /**
     * Create a receiver to receive messages from the specified queue.
     *
     * @param queue    the queue to access
     * @param selector the message selector to filter messages. May be
     *                 <code>null</code>
     * @return the new receiver
     * @throws JMSException if the receiver cannot be created
     */
    public QueueReceiver createReceiver(Queue queue, String selector)
            throws JMSException {
        long consumerId = allocateConsumer(queue, selector, false);
        JmsQueueReceiver receiver = new JmsQueueReceiver(this, consumerId,
                                                         queue, selector);
        addConsumer(receiver);
        return receiver;
    }

    /**
     * Create a sender to send messages to the specified queue.
     *
     * @param queue the queue to access, or <code>null</code> if this is an
     *              unidentified producer
     * @return the new sender
     * @throws JMSException if the sender can't be created
     */
    public QueueSender createSender(Queue queue) throws JMSException {
        ensureOpen();
        JmsQueueSender sender = new JmsQueueSender(this, (JmsQueue) queue);
        addProducer(sender);
        return sender;
    }

    /**
     * This implementation always throws <code>IllegalStateException</code>, as
     * per section 4.11 of the JMS specification.
     *
     * @throws IllegalStateException if invoked
     */
    public TopicSubscriber createDurableSubscriber(Topic topic, String name,
                                                   String messageSelector,
                                                   boolean noLocal)
            throws JMSException {
        throw new IllegalStateException("Invalid operation for QueueSession");
    }

    /**
     * This implementation always throws <code>IllegalStateException</code>, as
     * per section 4.11 of the JMS specification.
     *
     * @throws IllegalStateException if invoked
     */
    public Topic createTopic(String topicName) throws JMSException {
        throw new IllegalStateException("Invalid operation for QueueSession");
    }

    /**
     * This implementation always throws <code>IllegalStateException</code>, as
     * per section 4.11 of the JMS specification.
     *
     * @throws IllegalStateException if invoked
     */
    public TemporaryTopic createTemporaryTopic() throws JMSException {
        throw new IllegalStateException("Invalid operation for QueueSession");
    }

    /**
     * This implementation always throws <code>IllegalStateException</code>, as
     * per section 4.11 of the JMS specification.
     *
     * @throws IllegalStateException if invoked
     */
    public void unsubscribe(String name) throws JMSException {
        throw new IllegalStateException("Invalid operation for QueueSession");
    }

}