On Sun, 2003-10-05 at 16:26, Ionel GARDAIS wrote:
> I am trying to add an EJB load/store layer to the mail
> server developped by A. Oliver.
> 
> It needs to access :
> - a table with the usernames and passwords
> - 1 or more tables for the emails and attached files
> 

Just create the CMP beans (don't include a jbosscmp-jdbc.xml)
JBoss will create tables for the beans when they are first deployed.

If the user doesn't like the tables or DefaultDS, they can change
the definition by adding a jbosscmp-jdbc.xml to the
deployment.

Regards,
Adrian

> A CMP could allow an automatic table creation and easy
> finders manipulation.
> As the tables should be created on a database choosed
> by the user, the choices are : work with a CMP and
> allow the user to override the datasource (with all
> the problems you said) or to work with BMP, write all
> the queries and ask the user to provide
> connection-url, jdbc driver, username and password.
> 
> 
> Or maybe a BMP can use a declared datasource ?
> 
> > One of the aims of CMP is that your code is
> > independent
> > of the persistence mechansim (which is declared in
> > the
> > deployment). In principle it could be persisted to
> > a flat file system or an object db.
> > The idea of the datasource is specified at
> > deployment
> > (I want jdbc persistence).
> > 
> > Can you restate the problem in that context?
> 
> 
> =====
-- 
xxxxxxxxxxxxxxxxxxxxxxxx 
Adrian Brock
Director of Support
Back Office
JBoss Group, LLC 
xxxxxxxxxxxxxxxxxxxxxxxx 



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