On Jun 26, 2008, at 11:54 AM, Torsten Curdt wrote:
The subclassing of PDFDocument and PDFPage was quite straight forward. (Although unexpected as usually everyone tells you "usually you don't subclass in Cocoa land")
I think what we usually say is: don't make subclassing your first resort. Try configuration, composition, delegation, or notification before subclassing; but if those don't cover your particular situation, as often happens, most Cocoa classes are designed with subclassing in mind. Subclassing is more powerful and more dangerous than those other mechanisms, and often more work, so it should be reserved for those cases where it is necessary, but it should be available to you when you need it.
Douglas Davidson _______________________________________________ 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 [EMAIL PROTECTED]
