See also:
http://www.javasuccess.com/layered_arch_pattern.html
http://www.c2.com/cgi/wiki?HowToUseEntityBeans
Best Regards,
Randy Stafford
Senior Architect
GemStone Professional Services
> -----Original Message-----
> From: Craig Herder [SMTP:[EMAIL PROTECTED]]
> Sent: Wednesday, June 07, 2000 7:55 AM
> To: [EMAIL PROTECTED]
> Subject: Re: Entity Classes
>
> Dave,
>
> I'm new to all of this. But it seems to me that the advantages of EJB's
> become
> apparent when you think in terms of distributed applications and code
> re-use, or
> real OOP. IMHO you move away from this when you start combining tiers,
> and
> it
> seems like that's what your friend is doing.
>
> My 2c's.
>
> Craig H.
>
>
> -----Original Message-----
> From: Randy Stafford [mailto:[EMAIL PROTECTED]]
> Sent: Wednesday, June 07, 2000 3:07 AM
> To: [EMAIL PROTECTED]
> Subject: Re: Entity Classes
>
>
> See http://www.c2.com/cgi/wiki?BusinessObject.
>
> Best Regards,
> Randy Stafford
> Senior Architect
> GemStone Professional Services
>
> > -----Original Message-----
> > From: Dave Ford [SMTP:[EMAIL PROTECTED]]
> > Sent: Tuesday, June 06, 2000 3:53 PM
> > To: [EMAIL PROTECTED]
> > Subject: Entity Classes
> >
> > This question is ejb related, in the since that ejb defines the concept
> of
> > "entity beans". However, I am more interested in the idea of "entity
> > classes" generally. By Entity Class, I mean a class that mirrors (or
> > abstracts) a record in the database. But not necessarily an EJB Entity
> > Bean.
> >
> > I have a friend who does VB/database programming for a living. He is
> very
> > good and his customers like his work very much. However, he doesn't
> really
> > use classes that mirror his database tables. (Yes, VB does have
> classes).
> > He
> > pretty much puts all of his code in the VB Form. This code, then,
> directly
> > performs SQL statements against the database. His position is that
> entity
> > classes, just add extra unneeded layer.
> >
> > Some people, on the other hand, like to create classes (like Company,
> > Person, Invoice) that model the database entities, and have those
> classes
> > hide (or abstract) the database from the VB Form.
> >
> > So my question is this: Are people, outside of EJB, generally using
> entity
> > classes? Are entity classes more pain than their worth? Does CMP make
> them
> > less of a pain?
> >
> > Dave
> >
> >
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