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 is the Relationship between EJB and CORBA architecture?
what is an ejb object?
5 Answers Bally Technologies, HCL, Siemens,
What are the different types of ejb?
Why serialization is used?
Name the attributes of javax.ejb.ejb.
What is meant by manifest files ?
Using Container managed entity bean, how an entity bean can be created?
What are the benefits of ejb?
Enlist the declarative transaction types?
Write the basic requirement of a cmp entity based class in 2.0 from ejb 1.1?
java doesnot support multiple inhetance. but a interface can support.how the ambiguities are rectified in interfaces?
What is an entity manager?