From: eachus@spectre.mitre.org (Robert I. Eachus)
Subject: Re: Naming of Tagged Types and Associated Packages
Date: 1998/07/31
Date: 1998-07-31T00:00:00+00:00 [thread overview]
Message-ID: <EACHUS.98Jul31175224@spectre.mitre.org> (raw)
In-Reply-To: 6ps2ne$hko$1@platane.wanadoo.fr
In article <6ps2ne$hko$1@platane.wanadoo.fr> "Jean-Pierre Rosen" <rosen.adalog@wanadoo.fr> writes:
> I do think, and often claim, that one of the big advantages of Ada over
> other OO languages is that you can use inheritance at *implementation* level
> without using it at specification level; or (like here) have hidden
> inheritances, that allow you to break the transitive dependence. I have
> therefore much sympathy for the way the example is written; however, we are
> discussing naming of classes in the general case here, in the context of
> "traditionnal" OO style...
> Why would you want to add visibly a facet ? Because this way, if you add new
> operations to a facet, they are immediately inherited by all users. If you
> instantiate privately, you'll have to add new "interface" routines to all
> packages. Granted, this is better from the point of view of encapsulation,
> but not from the point of view of flexibility. And the "pure OOP" approach
> is most effective in cases where flexibility is considered more important
> than encapsulation (but this is another debate).
That's why I said we have to leave it here. My style of developing
in Ada 95 results in very few "open" types other than those where the
descendent types are defined by generic instantiation. Therefore, I
am the only person who sees inside the encapsulation. Jean-Pierre has
stated several times that he uses a more open style, and explicitly
designs expecting much more work to be done by the user of the type
rather than the creator.
Due to this difference in style, we will always reach different
conclusions about how naming should be done. Maybe I can talk
Jean-Pierre into my way of designing, but from experience, that is a
very slow process.
--
Robert I. Eachus
with Standard_Disclaimer;
use Standard_Disclaimer;
function Message (Text: in Clever_Ideas) return Better_Ideas is...
next prev parent reply other threads:[~1998-07-31 0:00 UTC|newest]
Thread overview: 138+ messages / expand[flat|nested] mbox.gz Atom feed top
1998-07-16 0:00 Naming of Tagged Types and Associated Packages taashlo
1998-07-25 0:00 ` Matthew Heaney
1998-07-25 0:00 ` Jean-Pierre Rosen
1998-07-25 0:00 ` Brian Rogoff
1998-07-26 0:00 ` Matthew Heaney
1998-07-26 0:00 ` Matthew Heaney
1998-07-26 0:00 ` nabbasi
1998-07-26 0:00 ` Robert Dewar
1998-07-26 0:00 ` Matthew Heaney
1998-07-27 0:00 ` Jean-Pierre Rosen
1998-07-28 0:00 ` Matthew Heaney
1998-07-28 0:00 ` Jean-Pierre Rosen
1998-07-28 0:00 ` dennison
1998-07-29 0:00 ` Jean-Pierre Rosen
1998-07-29 0:00 ` dennison
1998-07-29 0:00 ` Jean-Pierre Rosen
1998-07-30 0:00 ` dennison
1998-07-30 0:00 ` Jean-Pierre Rosen
1998-07-29 0:00 ` Robert I. Eachus
1998-07-30 0:00 ` Jean-Pierre Rosen
1998-07-30 0:00 ` Robert I. Eachus
1998-07-31 0:00 ` Jean-Pierre Rosen
1998-07-31 0:00 ` Robert I. Eachus [this message]
1998-08-01 0:00 ` Jean-Pierre Rosen
1998-08-04 0:00 ` Matthew Heaney
1998-08-04 0:00 ` Jean-Pierre Rosen
1998-08-10 0:00 ` Robert I. Eachus
1998-07-30 0:00 ` Matthew Heaney
1998-07-27 0:00 ` dennison
1998-07-27 0:00 ` Stephen Leake
1998-07-27 0:00 ` dennison
1998-07-27 0:00 ` Brian Rogoff
1998-07-28 0:00 ` dennison
1998-07-28 0:00 ` Brian Rogoff
1998-07-28 0:00 ` Brian Rogoff
1998-07-29 0:00 ` Matthew Heaney
1998-07-29 0:00 ` Brian Rogoff
1998-07-28 0:00 ` dennison
1998-07-29 0:00 ` Matthew Heaney
1998-07-29 0:00 ` Chris Brand
1998-07-30 0:00 ` Matthew Heaney
1998-07-30 0:00 ` dennison
1998-07-30 0:00 ` Matthew Heaney
1998-07-30 0:00 ` dennison
1998-08-01 0:00 ` Simon Wright
1998-08-02 0:00 ` Matthew Heaney
1998-08-03 0:00 ` dennison
1998-08-03 0:00 ` Matthew Heaney
1998-08-04 0:00 ` dennison
1998-08-04 0:00 ` Jean-Pierre Rosen
1998-08-04 0:00 ` Brian Rogoff
1998-08-05 0:00 ` Don Harrison
1998-08-05 0:00 ` Brian Rogoff
1998-08-07 0:00 ` Don Harrison
1998-08-07 0:00 ` doylep
1998-08-07 0:00 ` Brian Rogoff
1998-08-08 0:00 ` Matthew Heaney
1998-08-10 0:00 ` doylep
1998-08-10 0:00 ` Brian Rogoff
1998-08-10 0:00 ` John Volan
1998-08-10 0:00 ` John Volan
1998-08-11 0:00 ` doylep
1998-08-11 0:00 ` Brian Rogoff
1998-08-13 0:00 ` Robert A Duff
1998-08-13 0:00 ` Brian Rogoff
1998-09-01 0:00 ` Matthew Heaney
1998-09-01 0:00 ` Dale Stanbrough
1998-09-01 0:00 ` Matthew Heaney
1998-09-01 0:00 ` Bob Collins
1998-09-02 0:00 ` Matthew Heaney
1998-09-04 0:00 ` John G. Volan
1998-08-11 0:00 ` Don Harrison
1998-08-11 0:00 ` Pat Rogers
1998-08-11 0:00 ` Don Harrison
1998-09-01 0:00 ` Matthew Heaney
1998-08-13 0:00 ` Robert A Duff
1998-08-13 0:00 ` Brian Rogoff
1998-08-15 0:00 ` Don Harrison
1998-08-15 0:00 ` Jean-Pierre Rosen
1998-08-18 0:00 ` Don Harrison
1998-08-14 0:00 ` Don Harrison
1998-08-17 0:00 ` doylep
1998-08-19 0:00 ` Don Harrison
1998-08-12 0:00 ` Don Harrison
1998-08-08 0:00 ` Matthew Heaney
1998-08-08 0:00 ` John G. Volan
1998-08-09 0:00 ` Matthew Heaney
1998-08-10 0:00 ` John G. Volan
1998-08-11 0:00 ` John Volan
1998-08-11 0:00 ` Don Harrison
1998-08-11 0:00 ` geoff
1998-08-31 0:00 ` Matthew Heaney
1998-08-31 0:00 ` Tucker Taft
1998-09-06 0:00 ` John G. Volan
1998-09-06 0:00 ` Matthew Heaney
1998-09-04 0:00 ` John G. Volan
1998-09-05 0:00 ` Matthew Heaney
1998-09-05 0:00 ` John G. Volan
1998-09-04 0:00 ` John G. Volan
1998-09-06 0:00 ` Matthew Heaney
1998-09-06 0:00 ` John G. Volan
1998-09-06 0:00 ` John G. Volan
1998-09-06 0:00 ` Brian Rogoff
1998-09-06 0:00 ` John G. Volan
1998-09-07 0:00 ` Brian Rogoff
1998-09-07 0:00 ` John G. Volan
1998-09-16 0:00 ` Matthew Heaney
1998-09-04 0:00 ` John G. Volan
1998-09-05 0:00 ` John G. Volan
1998-09-06 0:00 ` Matthew Heaney
1998-09-06 0:00 ` Matthew Heaney
1998-09-05 0:00 ` John G. Volan
1998-09-05 0:00 ` John G. Volan
1998-08-11 0:00 ` doylep
1998-08-05 0:00 ` Matthew Heaney
1998-08-07 0:00 ` Don Harrison
1998-08-13 0:00 ` Robert A Duff
1998-08-14 0:00 ` adam
1998-08-14 0:00 ` Don Harrison
1998-08-05 0:00 ` Static Polymorphism (Was Re: Naming of Tagged Types...) Brian Rogoff
1998-08-06 0:00 ` Matthew Heaney
1998-08-06 0:00 ` Brian Rogoff
1998-07-28 0:00 ` Naming of Tagged Types and Associated Packages Norman H. Cohen
1998-07-28 0:00 ` Matthew Heaney
1998-07-28 0:00 ` Stephen Leake
1998-07-28 0:00 ` Matthew Heaney
1998-07-28 0:00 ` Jean-Pierre Rosen
1998-07-28 0:00 ` Matthew Heaney
1998-07-28 0:00 ` dennison
1998-07-29 0:00 ` Matthew Heaney
1998-07-30 0:00 ` Robert Dewar
1998-07-30 0:00 ` Matthew Heaney
1998-08-06 0:00 ` Robert A Duff
1998-08-06 0:00 ` Matthew Heaney
1998-08-06 0:00 ` Tucker Taft
1998-08-31 0:00 ` Matthew Heaney
-- strict thread matches above, loose matches on Subject: below --
1998-07-26 0:00 tmoran
1998-07-27 0:00 ` dennison
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