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From David Blevins <david.blev...@visi.com>
Subject Re: [jira] Commented: (GERONIMO-161) LocalXAResourceInsertionInte rceptor could use XAResource implementation
Date Tue, 06 Apr 2004 23:15:06 GMT
On Tue, Apr 06, 2004 at 04:25:15PM -0300, Hamilton Verissimo de Oliveira (Engenharia - SPO)
wrote:
> -----Mensagem original-----
> De: David Jencks [mailto:david@coredevelopers.net]
> 
> > In other words,  if an adapter supports getXAResource it MUST support 
> > getLocalTransaction.
> 
> Didn't know that. Thanks.
[snip]
>
> Maybe the semantic of useLocalTransactions is missing. I think
> useLocalTransactions means that one won't bother to pass transaction
> contexts to remote machines. Thats it. On the other hand with or without
> useLocalTransactions flag set, the transaction should use the XAResource
> implemented by the datasource - when available. If its not available, no
> problem to create a wrapper using setAutocommit/et al.

LocalTransactions are in the J2CA spec explicitly to avoid the
overhead of XA and distributed transactions when it is known in
advance no other datasources are involved.

-- 
David Blevins

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