A message-driven bean is a component of a lightweight enterprise application that is used to process messages in asynchronous mode, where the user does not always receive immediate results. Any component can send these messages regardless of whether it uses J2EE technology. The two distinct features that differentiate message-driven beans from session and entity beans are that message-driven beans cannot be accessed through interfaces and they have only a bean class.
Message beans are also noted for the following characteristics:
Message-driven beans are used in asynchronous communication between enterprise application components. A message is processed as follows:
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