spanning txns across multiple business methods

[Sankar Subbiramaniam]

According to HFEJB, page 301 (point 5):

Bean rums multiple business methods in the same transaction

Question: Since Entity beans use CMT, and in CMT, a txn is committed/rolledback after each method call, how is it possible to span transactions across mutiple business methods ?

[vikas prasad]

Dear Sankar,
may be if you read page 356 it might clear your doubt.
see you can call a method within a method. say there are 3 methods, A ,B and C with CMP. so if method A which is running in a transaction 1 will call method B and C both. Then both the methods run in the same transaction 1. ok.
for more detail in Transaction please read chapter 9 EJB Transaction.
this might definitely help you.
cheers
Vikas Prasad
SCJP 1.4 SCWCD 1.4 SCBCD 1.3

[Sankar Subbiramaniam]

I meant: "spanning txns across multiple client calls".
This to do with the different commit options supported by EJB spec.

[Roger Chung-Wee]

For a stateful session bean, it's possible to start a transaction in one method but end it in another method. This is almost never the right thing to do even though it is allowed by the EJB spec.