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Oracle® Streams Advanced Queuing Java API Reference 10g Release 2 (10.2) B14291-01 |
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For application servers, Connection
objects provide a special facility for creating a ConnectionConsumer
(optional). The messages it is to consume are specified by a Destination
and a message selector. In addition, a ConnectionConsumer
must be given a ServerSessionPool
to use for processing its messages.
Normally, when traffic is light, a ConnectionConsumer
gets a ServerSession
from its pool, loads it with a single message, and starts it. As traffic picks up, messages can back up. If this happens, a ConnectionConsumer
can load each ServerSession
with more than one message. This reduces the thread context switches and minimizes resource use at the expense of some serialization of message processing.
Connection.createConnectionConsumer(javax.jms.Destination, java.lang.String, javax.jms.ServerSessionPool, int)
, Connection.createDurableConnectionConsumer(javax.jms.Topic, java.lang.String, java.lang.String, javax.jms.ServerSessionPool, int)
, QueueConnection.createConnectionConsumer(javax.jms.Queue, java.lang.String, javax.jms.ServerSessionPool, int)
, TopicConnection.createConnectionConsumer(javax.jms.Topic, java.lang.String, javax.jms.ServerSessionPool, int)
, TopicConnection.createDurableConnectionConsumer(javax.jms.Topic, java.lang.String, java.lang.String, javax.jms.ServerSessionPool, int)
Method Summary | |
void |
close() Closes the connection consumer. |
ServerSessionPool |
getServerSessionPool() Gets the server session pool associated with this connection consumer. |
Method Detail |
public ServerSessionPool getServerSessionPool() throws JMSException
JMSException
- if the JMS provider fails to get the server session pool associated with this consumer due to some internal error.public void close() throws JMSException
Since a provider may allocate some resources on behalf of a connection consumer outside the Java virtual machine, clients should close these resources when they are not needed. Relying on garbage collection to eventually reclaim these resources may not be timely enough.
JMSException
- if the JMS provider fails to release resources on behalf of the connection consumer or fails to close the connection consumer.
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Oracle® Streams Advanced Queuing Java API Reference 10g Release 2 (10.2) B14291-01 |
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