| Developing a Chat Application |
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Developing a Simple Example
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Now that you are ready to write your first JMS application because you now know the Message-Oriented Middleware and some JMS concepts. Here we provide a gentle introduction to JMS using the publish-and-subscribe messaging model. You will get your feet wet with JMS and learn some of the basic classes and interfaces.
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The JMS Chat Application
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Internet chat provides an interesting application for learning about the JMS pub/sub messaging model. This is used mostly for entertainment, web-based chat applications can be found on thousands of web sites(Yahoo's Messenger, Google's GTalk and so on).
In a chat application, people join virtual chat rooms where they can "chat" with a group of other rooms people.
The requirements of Internet chat map neatly onto the publish-and-subscribe messaging model. To illustrate how JMS chat works, we will use the JMS pub/sub API to build a simple chat application.
In this model, a producer can send a message to many consumers by delivering the message to a single topic. A message producer is also called a publisher and a message consumer is also called a subscriber
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The source code and description for a JMS-based chat application can be found here:
The Chat Application
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