Re: Mixing OO and DB
From: Bob Badour <bbadour_at_pei.sympatico.ca>
Date: Fri, 15 Feb 2008 13:31:42 -0400
Message-ID: <47b5cc7f$0$4058$9a566e8b_at_news.aliant.net>
Date: Fri, 15 Feb 2008 13:31:42 -0400
Message-ID: <47b5cc7f$0$4058$9a566e8b_at_news.aliant.net>
Marshall wrote:
> On Feb 14, 8:59 pm, David BL <davi..._at_iinet.net.au> wrote:
>
>>... variables can be read (as >>well as written), which means it isn't true that a pointer to an >>ellipse variable is a pointer to a circle variable.
Apparently, David cannot follow written english.
> The problem arises when you have all of:
> 1) mutability
> 2) first-class variables
> 3) subtyping
>
> You can't pin the problem on any one of these; the problem
> is in the combination.
What was the problem again? Received on Fri Feb 15 2008 - 18:31:42 CET