RE: JCA Support of Ozone

Today i have a doubt about the responsability of the connector in
transactions.
I know that JCA call a dedicated JTA provider to treat transactions of a
connection,
but don't know if it is possible to defer the treatment of the transaction
to the target database.
If not, you're right, it means "take away the application server features 
(i.e. executing business logic) of Ozone"

In any event, i think the team will not have the time to developp "from
scratch" 
this ressource adapter.

I have heard it should be possible to integrate XML databases as a Slide
data store (Jakarta project),
this is a content repository, which has a JCA connector

Anyway, thanks for your support.


Antoine Onnen


-----Message d'origine-----
De : Per Nyfelt [mailto:[email protected]]
Envoyé : mercredi 21 juillet 2004 15:56
À : [email protected]
Cc : Onnen Antoine; '[email protected]'
Objet : Re: [Ozone-users] JCA Support of Ozone


No, I am not aware of a connector adaptor being created and made available.
I 
looked at this about two years ago and I found it very awkward to go this 
route with Ozone-EJB integration (but maybe things have improved lately). 
Instead I think that making Ozone a service in the EJB server similar to how

servlets and EJB's themselves would be available makes more sense. There is
a 
thirdparty module that does this type of integration with the JBoss EJB 
server. I do not have the need for automatic propagation and integration of 
transaction across EJB and Ozone so I never got around to create it. 

I am not sure if it is better to create a transaction adapter for Ozone that

handles a join with the EJB transaction when accessed from a bean or if a
JCA 
adapter would be better. If i remember correctly a JCA adapter makes it 
possible to treat the resource as a transaction enabled repository fro 
reading and writing data right? Does this not take away the application 
server features (i.e. executing business logic) of Ozone?

Anyway, if you want / have time to work on creating a JCA adapter for Ozone
or 
finding some other way of transaction integration between EJB's and Ozone I 
would be happy to support you any way I can.

Best regards,
Per

tisdagen den 20 juli 2004 12.53 skrev Onnen Antoine:
> Hi,
>
> As anyone hear about a JCA ressource adapter for Ozone?
> This is needed to integrate Ozone in a big project based on EJBs
> transactions.
>
> Thanks for your help.
>
> Antoine ONNEN - Ingénieur Développement
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