On Thu, Jun 11, 2009 at 10:10 PM, Quincey Morris<quinceymor...@earthlink.net> wrote: > On Jun 11, 2009, at 18:05, Brad Gibbs wrote: > >> Why not just use a singleton [[MainWindowController >> sharedWindowController] switchToView:[menuItems >> objectAtIndex:[menuItemsArrayController selectionIndex]] ? > > There's nothing wrong with that approach, though it's not perhaps what might > be understood as a "singleton". You happen to have only a single main window > controller, and propose having a class method to get it, that's all. > "Singleton" usually suggests code within the singleton's class to actively > prevent other instances being created by unruly "client" code. That's not > necessary here.
It really doesn't. Singleton-ness is a property of the API, not the implementation. If the API provides a single instance which you use, then it's a singleton. Enforcing that single instance is entirely up to the implementation of the API. It's not a necessary feature of a singleton, and it's not even necessarily a good feature to have. Mike _______________________________________________ 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
