On Wednesday 10 October 2007, Nathan Nobbe wrote: > On 10/10/07, Robert Cummings <robert@xxxxxxxxxxxxx> wrote: > > What I was really illustrating is how interfaces are syntactic > > sugar only. In my above example what I've really shown is an > > implicit interface :) Since OOP is largely meant to model real > > world things, ask yourself this... when a doctor sews a pig's > > heart into a human, do you think there's an explicit interface > > someplace that checks for compatibility, or does it "just work" > > if the conditions are right. Food for thought, pork in fact ;) > > i would look at that as a great example of an interface in action. > the pigs heart has to be compatible with the human body in some > way; they both have the same interface; namely the holes the tubes > connect to. i assume the doctors are the ones who run the interface > compatibility check. > the implementation is different i suppose (im not a biologist, just > guessing here :)) but thats the beauty of an interface; you just get > a contract, not behavior. > > -nathan Pig heart transpants? That's almost as good as Godwin's Law. :-) (This thread has been going on long enough that the statistical odds of it cropping up are getting good.) -- Larry Garfield AIM: LOLG42 larry@xxxxxxxxxxxxxxxx ICQ: 6817012 "If nature has made any one thing less susceptible than all others of exclusive property, it is the action of the thinking power called an idea, which an individual may exclusively possess as long as he keeps it to himself; but the moment it is divulged, it forces itself into the possession of every one, and the receiver cannot dispossess himself of it." -- Thomas Jefferson -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
