By krishnas
via java.sys-con.com
Published: May 18 2007 / 13:21
When I first started learning Cocoa I ran across a design pattern that I had seen implemented a few times before but I had yet to see it labelled with a name. This pattern is called the Delegate design pattern. Coming from C#, I found this initially confusing because in C# the concept of a delegate is slightly different than the concept of a delegate in the Cocoa world. In C#, a delegate is essentially a function pointer, and when someone in Cocoa refers to a delegate, they are referring to an entire instance of a class to which work is delegated.
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