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From "Matthieu Riou" <matthieu.r...@gmail.com>
Subject Re: Setting a datasource and a transaction manager
Date Thu, 14 Dec 2006 00:21:42 GMT
Thanks Marc! And what about the datasource? Is there another equivalent
interface and property to use?

On 12/13/06, Marc Prud'hommeaux <mprudhom@apache.org> wrote:
>
> Matthieu-
>
> If you have a custom TransactionManager, you can tell Kodo to access
> it using a ManagedRuntime implementation (see http://
> incubator.apache.org/openjpa/docs/latest/javadoc/org/apache/openjpa/
> ee/ManagedRuntime.html ).
>
> For example, if your TransactionManager is accessible via the JNDI
> name "comp/env/MyTransactionManager", then you could tell OpenJPA to
> access it by setting the "openjpa.ManagedRuntime" property to the
> value: "org.apache.openjpa.ee.JNDIManagedRuntime
> (TransactionManagerName=comp/env/MyTransactionManager)". For more
> exotic mechanisms of accessing the TransactionManager, you can just
> make a custom implementation of the ManagedRuntime class.
>
> In the future, we intent to make this more standard by utilizing the
> new javax.transaction.TransactionSynchronizationRegistry mechanism,
> but for now, we have custom implementations for each of our known and
> supported application servers (see the code at http://svn.apache.org/
> viewvc/incubator/openjpa/trunk/openjpa-kernel/src/main/java/org/
> apache/openjpa/ee/AutomaticManagedRuntime.java?
> view=markup&pathrev=468504 ).
>
> See also: http://incubator.apache.org/openjpa/docs/latest/manual/
> manual.html#ref_guide_enterprise_trans
>
>
>
>
> On Dec 13, 2006, at 1:13 PM, Matthieu Riou wrote:
>
> > Hi JPA guys,
> >
> > In the Apache Ode podling we're currently working on replacing
> > Hibernate
> > with OpenJPA. It's been working great so far but I have a couple of
> > questions. I'd need to set the transaction manager and the datasource
> > manually using the OpenJPA API and I've been unable to find the
> > right class
> > and the right setters so far. Is there an easy way to do that?
> >
> > The use case is we need to run both in containers with their own tx
> > manager
> > (like Geronimo) and lightweight containers (like Tomcat). In the
> > lightweight
> > case we instantiate our own transaction manager (JOTM) and our own
> > datasource (Minerva) and we don't need any JNDI (unnecessary painful).
> >
> > I've been looking around and haven't found an easy way. I could
> > have a look
> > at the sources but I figured that asking you directly would be
> > quicker.
> >
> > Thanks!
> >
> > Matthieu
>
>

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