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ejbCreate -permitted and prohibited operations -

 
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Hi all,
... about permitted and prohibited operations in an ejbCreate
method for a stateful session bean and a stateless session bean.




1) Why I can't mark the current transaction to roll back ?
2) Why I can't Determine whether the transaction has already been marked for rollback?
3) Why I can get a reference to the transaction? (no for stateless)

Thanks
 
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Why I can't mark the current transaction to roll back ?


ejbCreate never runs in the context of a transaction, so there is nothing to mark for rollback.

Why I can't Determine whether the transaction has already been marked for rollback?


Same reason as above.

Why I can get a reference to the transaction? (no for stateless)


A BMT stateful session bean demarcates its transaction boundaries, and is allowed to do this from ejbCreate. For CMT beans, demarcation is started from the business methods.
 
marcus don
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Hi Roger, may you please explain me the meaning of

A BMT stateful session bean demarcates its transaction boundaries

even with an example Thanks!
 
Roger Chung-Wee
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The following is not tested code (I've written it here in as hurry), but it does give an indication of how you can do this.
 
marcus don
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Thank you !
 
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