SessionSynchronization question

[Keith Rosenfield]

Hi all:
My question pertains to the following quote from one of the exam simulators

If a stateful session bean implements javax.ejb.SessionSynchronization, the container sends transaction synchronization notifications to the session bean instance. This requires that the session bean methods must be invoked only within a transaction. This is ensured if Required, RequiresNew or Mandatory transaction attribute is specfied for the methods in the component interface.

This requirement is not stated in HF or in the spec perse. Can someone please confirm or deny this statement. If it is true, please point me to where in the spec this is supported.
Thanks.

[Prasad Kuppa]

Yes, that is true. Please refer to page 352 of spec. The reason for this is also specified there.
Prasad

[Keith Rosenfield]

Thanks Prasad.