Sun Java System Message Queue 4.3 Developer's Guide for Java Clients

Closing a Consumer

As a matter of good programming practice, you should close a message consumer when you have no further need for it. Closing a session or connection automatically closes all consumers associated with it; to close a consumer without closing the session or connection to which it belongs, you can use its close method:

myConsumer.close();

For a consumer that is a nondurable topic subscriber, this terminates the flow of messages to the consumer. However, if the consumer is a queue receiver or a durable topic subscriber, messages will continue to be accumulated for the destination and will be delivered the next time a consumer for that destination becomes active. To terminate a durable subscription permanently, call its session’s unsubscribe method with the subscriber name as an argument:

mySession.unsubscribe("mySub");