Hi,

Frank Marx wrote:
> We have no transaction attributes specified in our deployment descriptor so
> the beans
> are running in TX_REQUIRED mode I guess.

Yes.

> But what isolation level is used ?

JBoss does not use any particular isolation
level. Bean instances get completely
isolated in a transaction, ie. serializable.

See EJB2.0 specification, section 16.4.2.

I guess you are aware of the dangers of
relaxing isolation more than your code
can handle, and the possible huge
performance benefits it may give you.


Best Regards,

Ole Husgaard.


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