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Question about SCBCD Study Guide by Mikalai Zaikin

 
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I happen to notice something new in this read of mine.

ejbRemove method in SessionBean interface does not throw removeExcpetion.
Whereas EntityBean ejbRremove method throws removeException and other exceptions.

Now I am reading Chapter 4 page 2 of SCBCD Study Guide by Mikalai Zaikin.

Under Session Bean Life Cycle for session Bean
One point (last point from bottom) says --
The ejbRemove() method cannot be called when the instance is participating in a transaction. An attempt to remove a session object while the object is in a transaction will cause the container to throw the javax.ejb.RemoveException to the client.

Where is this remove exception coming from? Is it from home or object and not from bean class?

Ohoo.. these interfaces are getting too confusing :-(

Thanks in advance for you help!
Gemini
 
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The container or rather the home object and the EJB object throw this exception.
 
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