can Session beans allow us to send JMS messages

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

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?

but session beans doesn't have onMessage method?

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

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?

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.

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

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 .

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?