QueueConnection.java

/*
 * The contents of this file are subject to the terms
 * of the Common Development and Distribution License
 * (the License).  You may not use this file except in
 * compliance with the License.
 *
 * You can obtain a copy of the license at
 * https://glassfish.dev.java.net/public/CDDLv1.0.html or
 * glassfish/bootstrap/legal/CDDLv1.0.txt.
 * See the License for the specific language governing
 * permissions and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL
 * Header Notice in each file and include the License file
 * at glassfish/bootstrap/legal/CDDLv1.0.txt.
 * If applicable, add the following below the CDDL Header,
 * with the fields enclosed by brackets [] replaced by
 * you own identifying information:
 * "Portions Copyrighted [year] [name of copyright owner]"
 *
 * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
 */

package javax.jms;

/** A <CODE>QueueConnection</CODE> object is an active connection to a
 * point-to-point JMS provider. A client uses a <CODE>QueueConnection</CODE>
 * object to create one or more <CODE>QueueSession</CODE> objects
 * for producing and consuming messages.
 *
 *<P>A <CODE>QueueConnection</CODE> can be used to create a
 * <CODE>QueueSession</CODE>, from which specialized  queue-related objects
 * can be created.
 * A more general, and recommended, approach is to use the
 * <CODE>Connection</CODE> object.
 *
 *
 * <P>The <CODE>QueueConnection</CODE> object
 * should be used to support existing code that has already used it.
 *
 * <P>A <CODE>QueueConnection</CODE> cannot be used to create objects
 * specific to the   publish/subscribe domain. The
 * <CODE>createDurableConnectionConsumer</CODE> method inherits
 * from  <CODE>Connection</CODE>, but must throw an
 * <CODE>IllegalStateException</CODE>
 * if used from <CODE>QueueConnection</CODE>.
 *
 * @version     1.1 - April 9, 2002
 * @author      Mark Hapner
 * @author      Rich Burridge
 * @author      Kate Stout
 *
 * @see         javax.jms.Connection
 * @see         javax.jms.ConnectionFactory
 * @see	 javax.jms.QueueConnectionFactory
 */

public interface QueueConnection extends Connection
{

  /** Creates a <CODE>QueueSession</CODE> object.
    *
    * @param transacted indicates whether the session is transacted
    * @param acknowledgeMode indicates whether the consumer or the
    * client will acknowledge any messages it receives; 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>.
    *
    * @return a newly created queue session
    *
    * @exception JMSException if the <CODE>QueueConnection</CODE> object fails
    *                         to create a session due to some internal error or
    *                         lack of support for the specific transaction
    *                         and acknowledgement mode.
    *
    * @see Session#AUTO_ACKNOWLEDGE
    * @see Session#CLIENT_ACKNOWLEDGE
    * @see Session#DUPS_OK_ACKNOWLEDGE
    */

  QueueSession createQueueSession(boolean transacted, int acknowledgeMode) throws JMSException;

  /** Creates a connection consumer for this connection (optional operation).
    * This is an expert facility not used by regular JMS clients.
    *
    * @param queue the queue to access
    * @param messageSelector only messages with properties matching the
    * message selector expression are delivered. A value of null or
    * an empty string indicates that there is no message selector
    * for the message consumer.
    * @param sessionPool the server session pool to associate with this
    * connection consumer
    * @param maxMessages the maximum number of messages that can be
    * assigned to a server session at one time
    *
    * @return the connection consumer
    *
    * @exception JMSException if the <CODE>QueueConnection</CODE> object fails
    *                         to create a connection consumer due to some
    *                         internal error or invalid arguments for
    *                         <CODE>sessionPool</CODE> and
    *                         <CODE>messageSelector</CODE>.
    * @exception InvalidDestinationException if an invalid queue is specified.
    * @exception InvalidSelectorException if the message selector is invalid.
    * @see javax.jms.ConnectionConsumer
    */

  ConnectionConsumer createConnectionConsumer(Queue queue, String messageSelector, ServerSessionPool sessionPool, int maxMessages) throws JMSException;
}