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In every book I have read it have been written that application managed persistence context can be performed only in Stateful session beans. Is that correct?
I mean, you cannot span entity manager through multiple method of Stateless bean, or you can???
Well I thought that you can,. but I found this in ejb3_persistent_spec.
Considering this statement it mean that Stateless beans cannot be used, because they cannot be used in extended scope, right???
and then I found this piece of code, I believed that it could exists only in Stateful bean
Please, does anyone could clarified my doubts about this issue?
You can use an application-managed Entity Manager to gain more control over the transactions or the EM lifecycle.The container do the work transparently but this doesn't mean you can not interfere in it.
What it is doing the code you posted is basically the same it occurs at the background using a container-managed EM.
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