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JDiscuss exam

 
Omis Hein
Greenhorn
Posts: 13
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When doing a JDiscuss exam. I found apparently two conflicting statements, regarding an entity bean.
Statement one: "When the container calls ejbRemove(), the bean enters the 'Pooled' state and is not necessarily destroyed (via unsetEntityContext() )"
Statement two: "Once the bean is removed, the bean 'does not exist'"
I am fairly confident that it is Statement two that is correct.
Any support ?.
 
Omis Hein
Greenhorn
Posts: 13
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Thanks to your overwhelming help with this one. I must not of mentioned those magic words "Head First EJB", which appears to attract lots of help
In the end I found what i was after in the specs (page 172) and found that statement one was actually correct after all.
Quote from specs :
"The container invokes the ejbRemove() method on an entity bean instance in response to a
client-invoked remove operation on the entity bean�s home or component interface or as the
result of a cascade-delete operation. The instance is in the ready state when ejbRemove() is
invoked and it will be entered into the pool when the method completes."
 
Reid M. Pinchback
Ranch Hand
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One of those subtle times when the distinction between 'bean instance' and 'entity' matters. Calling remove() (and hence ejbRemove()) removes the real-world entity and frees up the bean instance. The bean instance doesn't have to be garbage collected, it can either be re-used to service requests for some other entity, or it can be used to service home interface business methods.
 
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