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 |
Differentiate “find a method” from “select method” in EJB ?
What is an ejb container?
Which is the only method defined in the javax.ejb.handle interface?
What are the key benefits of the ejb technology?
How is an entity bean created?
What is ejb home object?
Tell me difference between Container managed persistent bean & Bean managed persistent bean?
ejb session beans and entity beans?
Is udp stateless?
What is ejb role in j2ee?
Describe client view of an Enterprise JavaBeans component?
What do you mean by ejb?