February 2002
Beginner to intermediate
544 pages
10h 23m
English
book
Java™ Message Service API Tutorial and Reference: Messaging for the J2EE™ Platform
by Mark Hapner, Rich Burridge, Rahul Sharma, Joseph Fialli, Kim Haase
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3.5. Message Consumers
A message consumer is an object created by a session and is used for receiving messages sent to a destination. A message consumer allows a JMS client to register interest in a destination with a JMS provider. The JMS provider manages the delivery of messages from a destination to the registered consumers of the destination.
The PTP form of message consumer implements the QueueReceiver interface. The pub/sub form implements the TopicSubscriber interface.
For example, you use a QueueSession to create a receiver for the queue myQueue, and you use a TopicSession to create a subscriber for the topic myTopic:
QueueReceiver queueReceiver = queueSession.createReceiver(myQueue); TopicSubscriber topicSubscriber = topicSession.createSubscriber(myTopic); ...
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