javax.jms.QueueSession Maven / Gradle / Ivy
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package javax.jms;
/** A QueueSession object provides methods for creating
* QueueReceiver, QueueSender,
* QueueBrowser, and TemporaryQueue objects.
*
* If there are messages that have been received but not acknowledged
* when a QueueSession terminates, these messages will be retained
* and redelivered when a consumer next accesses the queue.
*
*
A QueueSession is used for creating Point-to-Point specific
* objects. In general, use the Session object.
* The QueueSession is used to support
* existing code. Using the Session object simplifies the
* programming model, and allows transactions to be used across the two
* messaging domains.
*
*
A QueueSession cannot be used to create objects specific to the
* publish/subscribe domain. The following methods inherit from
* Session, but must throw an
* IllegalStateException
* if they are used from QueueSession:
*
* createDurableConsumer
* createSharedConsumer
* createDurableSubscriber
* createTemporaryTopic
* createTopic
* unsubscribe
*
*
* @see javax.jms.Session
* @see javax.jms.QueueConnection#createQueueSession(boolean, int)
* @see javax.jms.XAQueueSession#getQueueSession()
*/
public interface QueueSession extends Session {
/** Creates a queue identity given a Queue name.
*
* This facility is provided for the rare cases where clients need to
* dynamically manipulate queue identity. It allows the creation of a
* queue identity with a provider-specific name. Clients that depend
* on this ability are not portable.
*
*
Note that this method is not for creating the physical queue.
* The physical creation of queues is an administrative task and is not
* to be initiated by the JMS API. The one exception is the
* creation of temporary queues, which is accomplished with the
* createTemporaryQueue method.
*
* @param queueName the name of this Queue
*
* @return a Queue with the given name
*
* @exception JMSException if the session fails to create a queue
* due to some internal error.
*/
Queue
createQueue(String queueName) throws JMSException;
/** Creates a QueueReceiver object to receive messages from the
* specified queue.
*
* @param queue the Queue to access
*
* @exception JMSException if the session fails to create a receiver
* due to some internal error.
* @exception InvalidDestinationException if an invalid queue is specified.
*/
QueueReceiver
createReceiver(Queue queue) throws JMSException;
/** Creates a QueueReceiver object to receive messages from the
* specified queue using a message selector.
*
* @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.
*
* @exception JMSException if the session fails to create a receiver
* due to some internal error.
* @exception InvalidDestinationException if an invalid queue is specified.
* @exception InvalidSelectorException if the message selector is invalid.
*
*/
QueueReceiver
createReceiver(Queue queue,
String messageSelector) throws JMSException;
/** Creates a QueueSender object to send messages to the
* specified queue.
*
* @param queue the Queue to access, or null if this is an
* unidentified producer
*
* @exception JMSException if the session fails to create a sender
* due to some internal error.
* @exception InvalidDestinationException if an invalid queue is specified.
*/
QueueSender
createSender(Queue queue) throws JMSException;
/** Creates a QueueBrowser object to peek at the messages on
* the specified queue.
*
* @param queue the Queue to access
*
* @exception JMSException if the session fails to create a browser
* due to some internal error.
* @exception InvalidDestinationException if an invalid queue is specified.
*/
QueueBrowser
createBrowser(Queue queue) throws JMSException;
/** Creates a QueueBrowser object to peek at the messages on
* the specified queue using a message selector.
*
* @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.
*
* @exception JMSException if the session fails to create a browser
* due to some internal error.
* @exception InvalidDestinationException if an invalid queue is specified.
* @exception InvalidSelectorException if the message selector is invalid.
*/
QueueBrowser
createBrowser(Queue queue,
String messageSelector) throws JMSException;
/** Creates a TemporaryQueue object. Its lifetime will be that
* of the QueueConnection unless it is deleted earlier.
*
* @return a temporary queue identity
*
* @exception JMSException if the session fails to create a temporary queue
* due to some internal error.
*/
TemporaryQueue
createTemporaryQueue() throws JMSException;
}