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Java Message Service

The Java Message Service API is a Java API for sending messages between two or more clients. The API supports two models:
  • publish/subscribe model
  • point-to-point or queuing model

The publish/subscribe model supports publishing messages to a particular message topic. Zero or more subscribers may register interest in receiving messages on a particular message topic. In this model, neither the publisher nor the subscriber know about each other.

In the point-to-point or queuing model,a producer posts messages to a particular queue and a consumer reads messages from the queue. Here the producer knows the destination of the message and posts the message directly to the consumer's queue.

See the JMS tutorial at http://java.sun.com/products/jms/tutorial/1_3-fcs/doc/overview

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