Re: [BLACKBOX] Storing an extended object

From: F.V.Tkachov <"F.V.Tkachov">
Date: Wed, 12 Nov 2008 11:46:17 +0300

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> Thank you all for your suggestions.
> I will now mull over which is the best way.

> -Doug Danforth

Either what Robert suggested, or derive Sub directly from Stores.Store,
making Base a component of Sub.

Theoretically (according to the theory in my head) the second option is
best (the two options may not be mutually exclusive 100%).

--
Joseph, composition vs inheritance was extensively discussed in this list, 
I believe before you joined in.
My conclusion from it was:
extend only from ABSTRACT types,
replace methods that are expected to be supercalled by regular procedures,
no EXTENSIBLE anything, only ABSTRACT or EMPTY,
no procedure variables,
and in general use composition with non-ABSTRACT items.
cheers
fyodor
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Received on Wed Nov 12 2008 - 09:46:17 UTC