Sure. GemStone/J's PCA is a resource. We use CORBA OTS as our underlying
transaction management mechanism. Anything that can be wrapped in the
Resource interface can extend the transaction managers control. You can also
use the Java level apis.
In the case of MQ, my understanding is that IBM does Not make its
transaction apis publicly available. Apparantly they are C based apis, and
released by IBM only if they are compelled to do so. This makes integrating
MQ into your transaction control environment darn near impossible without
IBM's direct support.
-Chris.
> -----Original Message-----
> From: Syed Fareed Ahmad [SMTP:[EMAIL PROTECTED]]
> Sent: Wednesday, February 23, 2000 11:00 PM
> To: [EMAIL PROTECTED]
> Subject: Fw:EJB Transactions Managment
>
> Dear All,
>
> Just with the continuation of discussion. Can anybody point me to any
> custom
> DataSource/Connector (of course other then JDBC 2) implementation.
> Actually I
> have the idea that my Custom Resource dispenser will submit data (Once
> transaction is called for commit) to the legacy systems through MQSeries
> etc...
>
> Fareed
>
>
>
>
>
> >Just to be curious about EjbStore calls ? Can any body explain that how
> does
> the Applications Server handles the Transactions within multiple Entity
> EJBs.
> Like If >I have two entity EJBs as "a" & "b". Both running in the same
> transaction OK. If the transaction commits, the App Server calls the
> EjbStore
> for both EJBs. Correct?
>
> >But If Application Server called the EjbStore of "a" and Power goes off.
> What
> happens now?The developer had written the code for persistence in each
> ejbStore
> >But the "b" 's ejbStore was not executed? How the App Servers assure that
> All
> EjbStore excute or none of them execute? Some type of Out of order
> execution or
> >what? Because the changes made in the "a"'s ejbStore needs to be restored
> back.
> I know for JDBC that we can use the DataSource Object which can provide
> >the
> common Connection Object to all participants in a transaction. But what we
> need
> to do If we are storing the data in a custom data Store or Legacy App. Do
> we
> >need to write a custom Resource dispenser (just like the JDBC) based on
> the
> connectors API (being developed nowadays) or what ?
>
>
>
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