On 11/3/09 8:22 PM, David Hirsch said: >So, I'm hearing folks sing the praises of CoreData, which I have not >yet learned. It seems like a long uphill climb, but if life will be >spectacular afterwards, I'll do it. I am a semi-casual programmer; >I've just finished a couple of small programs that do not use >CoreData, and I can see the advantage in gaining open/save and undo/ >redo for free, but I'm concerned about the work I'll have to put in to >learn it. I've read a bunch of the CoreData intro documentation, but >it doesn't give a feel for how difficult it will be to learn, nor how >big the advantages are if I do. > >Here's the next project I'm going to work on, for which I'm >considering CoreData: > >A simulated annealing code for class scheduling. The CoreData part >would lie in managing all the lists involved: classes, rooms, >instructors, preferences, conflict cost weights, etc. I estimate that >I will have about 500 items spread over about 10 arrays. I would not >expect to have a complex object graph (if that's the right term) - >just a lot of items in lists, items that need to be managed, >displayed, saved, loaded, etc. I could use NSArrays for all these, >which I currently understand.
I have found learning and using Core Data worthwhile. It is quite big and you will want/need to read the docs over and over. In addition to what others have already said. I'll just add that undo support is not really 'free'. Core Data does do a lot of the undo work for you, but it's only 'free' in simple cases. 10.6 has improvements here (which I have yet to try). I'll also agree with others that scheme migration is a pain. One small model change and your file format is different and unreadable by older versions of your software. 10.6 also has improvements here (supposedly). Good luck! -- ____________________________________________________________ Sean McBride, B. Eng s...@rogue-research.com Rogue Research www.rogue-research.com Mac Software Developer Montréal, Québec, Canada _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
