How 'messaging' supported in EJB 2.0 Specification?
Answer / 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 |
What are the callback annotations for the stateless bean?
What are ejbs used for?
What do you mean by in-memory replication?
whatis the diff between ejb and servlet/jsp
How does ejb invocation happens?
Why do we need ejb in java?
What Is EJB Clustering? Explain the Functionality?
1 Answers Business Architectures, College School Exams Tests, HCL,
Life Cyle methods in Entity Bean with Bean Managed Persistence
what is mean by RMI ? Please answer me. Advance thanks.
What is ejb and why it is used?
What are the advantages of java beam?
what is mean by port ? Please answer me. Advance thanks.