On May 16, 2013, at 11:41 PM, Graham Cox <graham....@bigpond.com> wrote:
>> There is setValue:forUndefinedKey: and then each object could keep a local >> dictionary of these "defined at runtime" keys. > > There are low-level runtime methods that allow you to add properties at > runtime. I'm not sure whether that's considered good practice, but it's > doable. MYDynamicObject is a class I wrote that enables this: https://github.com/snej/MYUtilities/blob/master/MYDynamicObject.h You can subclass this, add properties to the @interface, and then mark them as @dynamic in the @implementation. Then you just need to implement a generic getter and setter method to do something like store the value in an internal mutable dictionary. (This is just like what NSManagedObject does with @dynamic properties, only in a more generic form.) —Jens _______________________________________________ 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: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com