do we need a meaningful transaction?

[pradeep arum]

in a SFSB in ejbCreate() we can not force a transaction rollback or find whether a transaction is rolledback or not because we are not in a meaningful transaction but we can access other bean methods & resource manager.
in a Entity bean , in ejbCreate() we can force a transaction rollback or find whether a transaction is rolledback or not & also we can access other bean methods & resource manager.is the ejbCreate() here (entity bean)in a meaningful transaction?
can somebody explain these scenarios please
another question is "do we need a meaningful transaction to call other beans methods or resource manager" ?
thanks
Pradeep
[ March 15, 2004: Message edited by: pradeep arum ]

[Chris Johnson]

How about this one: Entity ejbCreate, How do you have a meaningful
"client security context" without an entity object or a primary key?

[Chris Johnson]

From what I gather, accessing resource managers and other enterprise beans
is disallowed if container does not have a "meaningful transaction context"
or a "client security context".
Also, to help answer my own question, To have EJBObject and primarykey
access, you must have a valid "entity object identity", which looks
apparently separate from having a "client security context".
Can anyone confirm this?

[Nathaniel Stoddard]

Yes that's correct.
Sometimes methods are called by the container like ejbLoad and ejbStore. You can obviously get your own EJBObject at that point, but since no client actually invoked a method there's no client security context to use, so trying to do anything regarding security at that point would cause a runtime error.
While I was studying for the exam, I found that somebody had some very, very helpful notes regarding what was available to beans during its lifecycle. I forget who it was that put it up. I wrote some review in the results forum that you can do a search for (using my member #). It should help you clear up alot of these issues -- plus, it's a great cram tool right before you walk into the testing center.

[Roger Chung-Wee]

I think you mean the cheat sheets by Valentin Crettaz.