I have a doubt in Message-driven beans transaction attribute. In HFEJB PGNO 500, it is given that MDB can use only TWO attributes:Requires and NotSupported. Iam not understanding what it means. Can anyone brief this.
Only the NotSupported and Required transaction attributes may be used for message-driven beans. The use of the other transaction attributes is not meaningful for message-driven beans because there can be no pre-existing transaction context (RequiresNew, Supports) and no client to handle exceptions (Mandatory, Never).