can Session beans allow us to send JMS messages

[Samanthi perera]

1)can Session beans allow us to send JMS messages ?
2)If yes ,How?

[Jaikiran Pai]

Samanthi perera wrote:1)can Session beans allow us to send JMS messages ?

Yes, you can send JMS messages from within session beans.

Samanthi perera wrote:
2)If yes ,How?

The same way as you do from any other client code. Have you read the JMS tutorial?

[Samanthi perera]

but session beans doesn't have onMessage method?

[Jaikiran Pai]

You don't need any onMessage method to *send* JMS messages. Please read the tutorial for more details.

[Samanthi perera]

ok.
sessionbean send messages to Queue or topic.
then MDB listen to messages and when there is a message it take the message.
then who is the consumer?
is consumer MDB?

[ramprasad madathil]

is consumer MDB?

A consumer is any class that implements the MessageListener and subscribes to the topic/queue.
An MDB is a MessageListener (implements the interface) and hence is a consumer.
An MDB is also an EnterpriseBean - so you can use Container supported transactions, object pooling features right out of the box as you would with any ejb.

ram.

[Samanthi perera]

is there any other thing it can be consumers other than MDbs?

[Ravi Kiran Va]

As stated by Jai .

A consumer is any class that implements the MessageListener

Let me explain you more clearly ,Any class can be Consumer if it implements the MessageListener , and we normally go for MDB as the container takes care of all things like MDB instance creation and many other things .

[Samanthi perera]

ok.
1)client send messages to Queue.
2)MDB gets messages from Queue.

Is this the whole process?
But i read that MDB is a like a voice mail.It doesn't need to present both message sender and receiver.
anyway Isn't there any other process?