This depends very much on what design pattern you are using for OR mapping.  Martin 
Fowler's site
[1] gives a good overview of some approaches.

What is your approach to inheritance hierarchies for instance?
How does it work if the database schema already exists and tables do not map 1-1 with 
objects?

Peter Foreman

[1] www.martinfowler.com

--- Shawn Wildermuth <[EMAIL PROTECTED]> wrote:
> On another note, as soon as I finishing shipping my manuscript to the
> publisher, I am going to get back to work on my DBFormatter that would
> allow you to serialize directly to a database.  It is not as easy as I
> first thought, but I think it will worked.  This was my preferred
> methodology, but on the other hand, Relation->Object mapping (not the
> otherway around) is supported really well by DataSets (IMHO).  Since you
> can derive from DataSet (or Typed DataSet) using the DataSet as the
> basis for your business object layer is fairly trivial.
>
> Thanks,
>
> Shawn Wildermuth
> [EMAIL PROTECTED]
>
> > -----Original Message-----
> > From: dotnet discussion [mailto:[EMAIL PROTECTED]]
> > On Behalf Of Jim Arnold
> > Sent: Friday, May 10, 2002 11:31 AM
> > To: [EMAIL PROTECTED]
> > Subject: Re: [DOTNET] OT: Relational to Object mapping.
> >
> >
> > I've spent the last 9 months or so making (or attempting to
> > make) a persistence tier - along the lines of a
> > PersistentObject inheritance pattern, so I might have
> > something to add.  .Net desperately needs a proper O/R
> > mapping tool or object database, and a community project
> > would be a great idea.
> >
> > I was actually eagerly awaiting Thomas' product - it would be
> > a shame if it didn't see the light of day.
> >
> > Jim
> >
> > > -----Original Message-----
> > > From: Murphy, James [mailto:[EMAIL PROTECTED]]
> > > Sent: 10 May 2002 16:25
> > > To: [EMAIL PROTECTED]
> > > Subject: Re: [DOTNET] OT: Relational to Object mapping.
> >
> > > > *** It might. I have an O/R mapper here ready for about
> > half a year
> > > > - it was supposed to become a product but will probably never.
> > > We seriously
> > > > think of making it open source :-)
> > >
> > > Perhaps when you if there is enough interest (and I'm further
> > > along) we
> > > could get something going here.
> > >
> > > Jim
> >
> > You can read messages from the DOTNET archive, unsubscribe
> > from DOTNET, or subscribe to other DevelopMentor lists at
> > http://discuss.develop.com.
> >
>
> You can read messages from the DOTNET archive, unsubscribe from DOTNET, or
> subscribe to other DevelopMentor lists at http://discuss.develop.com.


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