javax.jms.QueueConnection Maven / Gradle / Ivy
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package javax.jms;
/** A QueueConnection object is an active connection to a
* point-to-point JMS provider. A client uses a QueueConnection
* object to create one or more QueueSession objects
* for producing and consuming messages.
*
*A QueueConnection can be used to create a
* QueueSession, from which specialized queue-related objects
* can be created.
* A more general, and recommended, approach is to use the
* Connection object.
*
*
*
The QueueConnection object
* should be used to support existing code that has already used it.
*
*
A QueueConnection cannot be used to create objects
* specific to the publish/subscribe domain. The
* createDurableConnectionConsumer method inherits
* from Connection, but must throw an
* IllegalStateException
* if used from QueueConnection.
*
* @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 QueueSession 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 Session.AUTO_ACKNOWLEDGE,
* Session.CLIENT_ACKNOWLEDGE, and
* Session.DUPS_OK_ACKNOWLEDGE.
*
* @return a newly created queue session
*
* @exception JMSException if the QueueConnection 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 QueueConnection object fails
* to create a connection consumer due to some
* internal error or invalid arguments for
* sessionPool and
* messageSelector.
* @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;
}