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Re: Core Data (was Re: Any WWDC News)
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Re: Core Data (was Re: Any WWDC News)


  • Subject: Re: Core Data (was Re: Any WWDC News)
  • From: Greg Hulands <email@hidden>
  • Date: Fri, 2 Jul 2004 12:44:54 +1000

I just don't understand why they stopped obj-c eof. Was their licensing to third parties (similar to DPS with Adobe) that made apple rewrite a new API? It just doesn't make sense. It wasn't broken. It wasn't inferior. It made database based apps click and drag f'ing easy. Why waste engineering hours to remake something that is essentially functionally the same as what already existed. Maybe core data is CF based with toll-free bridged obj-c wrappers. I'm only speculating as I'm not at WWDC.


On 02/07/2004, at 12:08 PM, Randall Perry wrote:

I don't get it -- if EOF is going away, and Core Data is this limited, what
are WO developers supposed to use -- especially for Opensource DBs?


Will we still be able to use the current EOModeler and incorporate EOModels
in our apps with Tiger?



Hi Ashley,

The folks from the WO team worked on Core Data.  It is not compatible
with EOF being much lighter weight but it is derived from the same
technology and is an OR tool.

It only supports SQL Lite as a database.  No other database vendor
claims to be talking to Apple about including support for their own
technology.

It can also access binary and XML datasources.

It is ObjC based, not Java.

Can't see any caching or snapshot mechanism in
there...but...eww...ObjC..

Karl

On 1-Jul-04, at 1:51 AM, Ashley Aitken wrote:

Hi Josh (and List Members),

On 01/07/2004, at 1:25 PM, Josh Paul wrote:
So Apple kills EO on the desktop. Most people in the community scream
they want it (back). Tiger rolls around and it looks like they've
provided what we've (as a community) asked for in Core Data. Now that
Core Data is coming with Tiger, there will 64-bit OS with a shiny new
EO-type framework for me to develop with. Sign me up.

Can you (or anyone else) tell us (those not at WWDC) any more about Core Data?

Is it really comparable to EOF?   How is it different?

Does it work with different databases (not just SQLite)?

What about JNDI sources?

I assume it is object-relational mapping?

Is it only for the local machine or can it talk to remote databases?

Can two application / users talk to the same database (SQLite) at the
same time using it?

Does it have caching like EOF?

Is it red, green or blue?  Animal, mineral or vegetable?

Thanks,
Ashley.

--
Ashley Aitken
Perth, Western Australia
mrhatken at mac dot com
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 >Re: Core Data (was Re: Any WWDC News) (From: Randall Perry <email@hidden>)

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