PC propagation rules won't be applicable when you use different EMF in
caller and called components. Have you tried doing this? Are you seeing
any error?
Thanks,
Sahoo
glassfish_at_javadesktop.org wrote:
> Hi Sahoo,
>
>> Propagation of JTA transaction across session beans
>> is independent of
>> use of JPA. Since you use different EMFs in those
>> session beans, you
>> would be using different persistence contexts in each
>> of those bean's
>> context. Did it answer your question?
>>
>
> That's my question, In the case I have different PC among locally caller and called SFSB. But the propagation requires the same PC, right? In other words, If a stateful session bean with an extended persistence context calls a stateful session bean with a different extended persistence context in the same transaction, an IllegalStateException would be thrown.
>
> Am I missing something here, as then I will not be able to use a different PC of an EMF configured for different data source.
>
> Take a look at
>
>> [1] for an example
>> of PC propagation.
>>
>
> I had a look at your explanation in the blog, I must say it is very informative, my question is related somewhat to rule#5. I guess, your example uses the same datasource in the transaction of ReportServlet where it calls the UCM Bean.
>
> With Regards,
> Mayank
>
>
>
>
>> Thanks,
>> Sahoo
>> [1]
>> http://weblogs.java.net/blog/ss141213/archive/2006/10/
>> persistence_con.html
>> glassfish_at_javadesktop.org wrote:
>>
>>> As per JPA Spec section 5.6.3, "A single
>>>
>> persistence context may correspond to one or more JTA
>> entity manager instance (all associated with the same
>> entity manager factory).
>>
>>> Now, If I require a JTA transaction to be
>>>
>> propagated among Stateful sesion beans and each
>> session bean is using different datasources (hence
>> having different persistence-units in same or
>> different 'persistence.xml' file and hence different
>> EMFs)
>>
>>> How am I going to acheive this using JPA?
>>>
>>> With Regards,
>>> Mayank
>>> [Message sent by forum member 'mayankmishra'
>>>
>> (mayankmishra)]
>>
>>>
>> http://forums.java.net/jive/thread.jspa?messageID=2152
>> 18
>>
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> [Message sent by forum member 'mayankmishra' (mayankmishra)]
>
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