jaikiran pai [http://community.jboss.org/people/jaikiran] replied to the 
discussion

"Multiple Persistence Units with the same entities"

To view the discussion, visit: http://community.jboss.org/message/536631#536631

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> Andrig Miller wrote:
> 
> In the batch processing methods I use the entity manager that is configured 
> for batch processing, and in the other methods I use the one configured for 
> OLTP processing.
> 
> This is all working, but when I was reading various sources for whether this 
> "should" work, it wasn't clear.
> 
> So, while it does work, what I am wondering, is this spec compliant, or is 
> this just dumb, blind luck that it works?
It's definitely +not+ luck  :)  I don't see anything wrong in what you are 
doing.

One thing that you might want to keep note is to make sure thatĀ  you don't end 
up using both those entity managersĀ  in the same transaction - in which case 
you would be enrolling 2 transaction aware resources (the datasource 
corresponding to the entity managers) in one transaction. You would then 
require XA datasources for such cases.

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