Java™ Message Service API Tutorial and Reference: Messaging for the J2EE™ Platform

8.1. Writing and Compiling the Application Components

This application demonstrates how to send messages from an enterprise bean—in this case, a session bean—rather than from an application client, as in the example in Chapter 7. Figure 8.1 illustrates the structure of this application.

Figure 8.1. A J2EE Application: Client to Session Bean to Message-Driven Bean

The Publisher enterprise bean in this example is the enterprise-application equivalent of a wire-service news feed that categorizes news events into six news categories. The message-driven bean could represent a newsroom, where the Sports desk, for example, would set up a subscription ...