Re: Outline and Table back to front
Re: Outline and Table back to front
- Subject: Re: Outline and Table back to front
- From: Gorazd Krosl <email@hidden>
- Date: Mon, 20 Jun 2005 13:17:27 -0400 (EDT)
>Absolutely not - from a theoretical perspective, the
object is all
>powerful... everything is an object, i.e. objects can
do everything...
>Numbers are objects - they are objects that restrict
the
>functionality of an object to such things as adding
up etc. but
>exclude the ability to do string concatonation.
>String is not a subclass of number specifically
because it does
>things that numbers do not do.
>Think about how you write subclassing... A number "is
>an" object, an
>object is not necessarily a number.
>A table view "is an" outline view in that you can
describe all table
>views in terms of being an outline view.
>An outline view is not a table view because I can
give you an example
>of an outline view that is not a table view.
So, if I get this right, we should have one object
describing all of the Cocoa and then subclasses
restricting all of the super-object with the exception
of the for instance NSString specific object?
Gorazd
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