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Sams Teach Yourself J2EE™ in 21 Days by Peter Roxburgh, Andy Longshaw, Debbie Law, Dan Haywood, Martin Bond

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Day 9. Java Message Service

So far, you have learned about two types of EJB—Entity Beans and Session Beans. Before introducing you to the third type—Message Beans (to be covered on Day 10, “Message-Driven Beans”), we will take a look at the purpose and use of messaging within enterprise applications, the Java Message Service's API (JMS), and its place within J2EE.

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