Configuring thread limits for MDBs
When using WebLogic's JMS system, there's a rather long list of parameters that are specific to this application server and control several aspects of our components, such as caching, security, and thread usage.
Some of these elements can be attached to a bean with annotations, some can only be declared inside a specific descriptor file, and some are available both ways. The following is a list of WebLogic-specific elements that you can apply to a bean only through a descriptor file, weblogic-ejb-jar.xml:
dispatch-policy: This element attaches the MDB to a work manager, which is a way to share computational resources among WebLogic components.initial-beans-in-free-pool: This element tells the bean system how many beans should be created and put in the pool when the application is started. When WebLogic creates a message-driven bean, 16 instances are created. These can be seen in the Consumers Current column on the administration's queue monitoring screen...
