| EJB 2.x |
EJB 3.0 |
| Implements javax.ejb.MessageDriven |
POJO: May annotate with @MessageDriven |
| Specify destination type, name, and so on in the deployment descriptor. |
May be annotated with @ActivationConfigProperty |
| MessageDrivenContext is acquired using setMessageDrivenContext(). |
MessageDrivenContext is achieved using dependency injection—for example:
@Inject javax.ejb.MessageDrivenContext mc;
|
| Resource usage, such as Queue or Topic, is required resource-ref in the deployment descriptor and JNDI lookup. |
Can be used using dependency injection:
@Inject private Queue destQueue;
|
Table 2 MDB Migration
MDBs do not have to implement the javax.ejb.MessageDriven interface in EJB 3.0, but they can instead be annotated with @MessageDriven.
|