From: "John W. Kennedy" <jwkenne@attglobal.net>
Subject: Re: Separate Compilation in Programming Languages
Date: Tue, 26 Feb 2008 00:10:51 -0500
Date: 2008-02-26T00:10:51-05:00 [thread overview]
Message-ID: <47c39f6c$0$15196$607ed4bc@cv.net> (raw)
In-Reply-To: <ulk58of6r.fsf@STRIPCAPStelus.net>
Ray Blaak wrote:
> Ray Blaak <rAYblaaK@STRIPCAPStelus.net> writes:
>>> Perhaps. But I still don't see how one can defer the dependency of a
>>> Java signature to the implementation of the Java class and prevent
>>> the need for recompiling the entire architecture when the signature of
>>> a parent class changes.
>> Maybe the disconnect is here. Are you talking about how spec changes ripple
>> down, or are you talking about how body changes ripple down? Spec changes
>> affect clients and bodies, both in Java in Ada. Body (implementation) do not
>> affect clients that only refer to the spec, both in Java and Ada.
>
> It also occurs to me to wonder if you were assuming the Java interface and
> implementation are in the same file. If so, the issues you say would indeed
> happen.
>
> But usually the interface and its implementations are in separate files, as
> per the usual Java rule of one class per file. That separation is what allows
> Java to have separate compilation.
Actually, this doesn't accomplish as much as you wish, in practice, as
it will eventually be necessary to have a constructor for the real
class, or else a static factory method.
--
John W. Kennedy
"The blind rulers of Logres
Nourished the land on a fallacy of rational virtue."
-- Charles Williams. "Taliessin through Logres: Prelude"
next prev parent reply other threads:[~2008-02-26 5:10 UTC|newest]
Thread overview: 72+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-02-22 17:35 Separate Compilation in Programming Languages adaworks
2008-02-22 17:52 ` Dirk Heinrichs
2008-02-23 0:23 ` adaworks
2008-02-22 18:10 ` Ray Blaak
2008-02-22 23:53 ` adaworks
2008-02-23 1:40 ` Ray Blaak
2008-02-23 7:29 ` adaworks
2008-02-23 18:42 ` Ray Blaak
2008-02-22 18:18 ` Niklas Holsti
2008-02-23 0:14 ` adaworks
2008-02-23 7:23 ` Niklas Holsti
2008-02-23 7:31 ` Niklas Holsti
2008-02-23 16:00 ` adaworks
2008-02-23 12:27 ` Georg Bauhaus
2008-02-23 12:37 ` Dirk Heinrichs
2008-02-23 13:03 ` Niklas Holsti
2008-02-22 19:11 ` Dmitry A. Kazakov
2008-02-23 0:16 ` adaworks
2008-02-22 19:33 ` Larry Kilgallen
2008-02-22 20:47 ` Simon Wright
2008-02-22 21:27 ` Robert A Duff
2008-02-23 0:12 ` adaworks
2008-02-23 10:28 ` framefritti
2008-02-23 12:45 ` Dirk Heinrichs
2008-02-23 15:16 ` Robert A Duff
2008-02-23 16:47 ` adaworks
2008-02-23 18:47 ` Ray Blaak
2008-02-24 7:40 ` adaworks
2008-02-24 9:42 ` Ray Blaak
2008-02-24 20:41 ` adaworks
2008-02-25 2:37 ` Ray Blaak
2008-02-25 7:06 ` adaworks
2008-02-25 13:12 ` Robert A Duff
2008-02-25 17:44 ` Ray Blaak
2008-02-25 22:16 ` Ray Blaak
2008-02-26 5:10 ` John W. Kennedy [this message]
2008-02-26 19:08 ` Ray Blaak
2008-02-26 7:11 ` adaworks
2008-02-26 13:38 ` Stephen Leake
2008-02-26 14:56 ` adaworks
2008-02-26 19:15 ` Ray Blaak
2008-02-26 19:13 ` Ray Blaak
2008-02-26 21:25 ` Ray Blaak
2008-02-27 1:15 ` Robert A Duff
2008-02-26 7:06 ` adaworks
2008-02-26 11:42 ` Alex R. Mosteo
2008-02-26 15:05 ` adaworks
2008-02-26 15:15 ` Alex R. Mosteo
2008-02-24 17:26 ` Robert A Duff
2008-02-23 20:46 ` Robert A Duff
2008-02-24 7:31 ` adaworks
2008-02-24 17:20 ` Robert A Duff
2008-02-24 20:33 ` adaworks
2008-02-25 1:07 ` Robert A Duff
2008-02-26 7:29 ` adaworks
2008-02-26 19:22 ` Ray Blaak
2008-02-27 1:58 ` adaworks
2008-02-27 20:34 ` Ray Blaak
2008-02-27 22:31 ` Robert A Duff
2008-02-27 23:35 ` Ray Blaak
2008-02-28 0:19 ` Randy Brukardt
2008-02-28 9:18 ` Georg Bauhaus
2008-02-29 5:57 ` adaworks
2008-02-29 6:04 ` Ray Blaak
2008-02-29 10:48 ` Alex R. Mosteo
2008-02-29 17:05 ` adaworks
2008-02-29 18:33 ` Ray Blaak
2008-02-29 6:10 ` adaworks
2008-02-22 22:16 ` Jeffrey R. Carter
2008-02-23 13:44 ` Brian Drummond
2008-02-23 17:19 ` adaworks
2008-02-25 7:53 ` Jean-Pierre Rosen
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