Re: Mixing OO and DB

On Feb 12, 6:49 pm, Robert Martin <uncle..._at_objectmentor.com> wrote:
> On 2008-02-11 12:44:28 -0600, topmind <topm..._at_technologist.com> said:
>
> > A bigger issue is how to manage "variations on a theme". OOP tends to
> > use polymorphism and object pointers, while a data-centric approach
> > tends to use set theory and attributes (meta data). I much prefer the
> > second. I won't claim it objectively better, but to my mind it is a
> > lot nicer, more flexible, and easier to report/study/sift via query
> > and table browsers.
>
> I won't disagree with any of that.  I will say, however, that I can
> manage the dependencies between source code modules with OO,
> and I can't with data.  

The trick is to shift to a declarative interface/logic so that less is
in app code. Change the problem instead of trying to solve the wrong problem.

> There are other dependencies I can manage with data,
> that I can't with OO.  Both are useful.  Neither is better than the
> other.  They are orthogonal and complementary.

I disagree. They tend to fight over the same territory.

>
> --
> Robert C. Martin (Uncle Bob)  | email: uncle..._at_objectmentor.com
> Object Mentor Inc.            | blog:  www.butunclebob.com
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-T- Received on Sat Feb 16 2008 - 01:14:35 CET