How 'messaging' supported in EJB 2.0 Specification?
Answer Posted / guest
The EJB 2.0 Specification defines JMS support through a new
type of enterprise bean, the message-driven bean. A
message-driven bean is invoked by the EJB container as the
result of the arrival of a JMS message. To a client, the
message-driven bean is a JMS consumer that implements some
business logic on the server. Clients communicate with
message-driven beans by sending messages to a JMS
Destination (either a Queue or a Topic) for which the
message-driven bean is a MessageListener.
Message driven beans are distinct from both Entity and
Session beans. They have neither home nor remote interfaces.
Instead, they implement the javax.jms.MessageListener
interface.
Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
What is ejb framework?
What are ejb components?
What is ptp model?
What do you mean by EJB architecture?
What is backing bean?
What are the advantages of ejb?
What do you mean by abstract schema?
What is ejb in weblogic?
How entity beans support container managed persistence?
Why do we use @requestmapping?
What is the procedure of ejb container to handle exceptions?
What is the advantage of using entity bean for database operations, over directly using jdbc api to do database operations?
Enlist the declarative transaction types?
What is ejb technology?
What do you mean by ‘hot deployment’ ?