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7.4. Message-Driven Beans
7.4.1. Message-Driven Beans
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Message-driven Beans (MDBs) provide an event driven model for application development. The methods of MDBs are not injected into or invoked from client code but are triggered by the receipt of messages from a messaging service such as a Java Messaging Service (JMS) server. The Java EE 6 specification requires that JMS is supported but other messaging systems can be supported as well.
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