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NSTimeZone and Abstract Classes

Subject: NSTimeZone and Abstract Classes
From: Joe Muscara <email@hidden>
Date: Tue, 30 Oct 2001 14:50:59 -0600

I've been beating my head against the wall for a couple of days now. I thought I understood the concept of abstract classes, and I've reread the thread about abstract classes from this summer in case anything was helpful (it wasn't).

I've defined ClockieTimeZone as a subclass of NSTimeZone. It's a pretty minimal implementation, with the intent of adding one variable and a method or two. Otherwise, I just want the functionality of NSTimeZone (name, description, isDaylightSavingsTime, etc.). Unfortunately, every time I send a ClockieTimeZone instance a message that includes a selector that's in NSTimeZone, I get an error in the Console like the one below. I even get these when initWithName is called. Can anyone tell me what I've obviously overlooked?

"-name only defined for abstract class. Define -[ClockieTimeZone name]!"

Thanks.
Joe

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