20.3. Building, Deploying, and Running the Message-Driven Bean Example
Like the session bean we saw previously, and the entity bean we'll examine next, the message-driven bean needs to be described via a deployment descriptor that is named ejb-jar.xml. We'll also once again need a WebLogic-specific deployment descriptor to further describe the bean.
The ejb-jar.xml file is shown in Listing 20.2. We provide an <ejb-name> and <ejb-class> as with the other bean types, but a message-driven bean has no interfaces so that part of the deployment descriptor is omitted.
We then have a number of MDB-specific configuration settings. The settings of <acknowledge-mode>, <destination-type>, and <subscription-durability> allow us to set values that in the non-EJB ...
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