Re: ADC Core Data article
Re: ADC Core Data article
- Subject: Re: ADC Core Data article
- From: James Duncan Davidson <email@hidden>
- Date: Tue, 5 Apr 2005 18:01:48 -0700
On Apr 5, 2005, at 17:31 , Jake Macmullin wrote:
However, other O/R frameworks allow you to persist 'plain old'
objects. For example, Hibernate allows you to persist 'plain old
Java objects' - so I'm not sure it is asking too much for an O/R
framework which doesn't require that all persisted classes inherit
from a common parent (other than object). Although perhaps some of
Core Data's features such as the handling of 'undo and redo' would
make this idea more difficult.
Core Data isn't just about persistence though. Persistence is only
half of Core Data's description as an "object graph management and
persistence framework". If Core Data were just about persistence and
reanimation, then an object's ability to be serialized would be about
all you needed. But it's that "object-graph management" part that
makes it really interesting. And what probably requires the added
ooomph of a parent class other than NSObject.
Also, I don't believe that Core Data is an O/R framework like
Hibernate et al are. I think it's easy to jump to the conclusion
that Core Data is about O/R because one of its three data store types
is SQLite and it borrows several concepts from the database world.
But, I think that to view it in just O/R terms would be to sell it
short.
Of course, we'll have to wait until Tiger ships in order to see for
sure.
duncan
_______________________________________________
Do not post admin requests to the list. They will be ignored.
Cocoa-dev mailing list (email@hidden)
Help/Unsubscribe/Update your Subscription:
This email sent to email@hidden