EJB 3.0 with Stateless Session Bean as instance variable

[wichkabashir]

Example.
@MessageDrivenBean
public class CalculatorMDB {
@EJB Calculator cal;
onMessage()
{
...
}

}

I have injected a stateless session bean instance in MDB and that there are 5 mdbs in the pool but every time mdb receives a message different instance of stateless session bean is created. Is there way to make one to one instance mapping so that every invocation of mdb doesn,t create a new session bean instance. It seems mdb resets it's instance variables and creates new instance variable for every message it gets from jms topic.

Suggestions appreciated.
Ahmed

[jaikiran]

Why do you want to maintain a instance of SLSB in a MDB? Note that the MDBs are pooled and its not guaranteed that the JMS message is always handled by the same MDB.

[wichkabashir]

Yes I know, but my main concern is that stateless session beans should not get created endlessly, that is to say that if pooled message driven beAn is used to process a message, a pooled stateless session bean should be injected rather than creating a new one every time. Hope I make sense now.
Thanks,
Ahmed

[jaikiran]

See this http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4140142