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From "Øyvind Harboe" <oyvind.har...@zylin.com>
Subject Re: Relationships across databases
Date Thu, 21 Jun 2007 06:57:10 GMT
On 6/21/07, Juergen Saar <juergen@jsaar.org> wrote:
> Cayenne is a Framework that brings one of the best ORM available
> and it would be foolish to implement such a horrible scenarium.

I don't know what you find "horrible" about this scenario so I can't
reply sensibly to your comment here.

One of the really nice things about Cayenne is that it does allow
adding code to handle screwed up databases on the application side.

We're phasing out these screwed up database schemas and use of e.g.
FoxPro/MSAccess, but the application needs to keep chugging along
while we prepare  to put it the old code/database schemas out its
misery.

> I think this special problem has to be solved by YOU
> and not by the cayenne-team

I don't know what I said to offend you. :-)

I'm trying to ascertain whether this is something for which code
hasn't been written yet and whether there would in fact be interest in
a patch. It is not clear from the wiki page why this should never be
done or attempted.

Perhaps there is some recommended best practice to handle this case in
the the application subclasses?

The wiki page in question recommends implementing  a query to
implement the "getToXxx()" across databases, but that breaks when I
want the "getToXxx()" to work for an uncommitted changed relationship
across databases.


-- 
Øyvind Harboe
http://www.zylin.com - eCos ARM & FPGA  developer kit

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