From: "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de>
Subject: Re: About 0Y interfaces
Date: Tue, 18 Oct 2005 15:18:14 +0200
Date: 2005-10-18T15:18:14+02:00 [thread overview]
Message-ID: <d080rljfojwl$.iu8jupk4njms.dlg@40tude.net> (raw)
In-Reply-To: 4354EF40.9010906@mailinator.com
On Tue, 18 Oct 2005 14:49:04 +0200, Alex R. Mosteo wrote:
> I hope someone can clarify some aspects of interfaces to me. I've read
> the description in several places but there are some things I'm not sure
> about.
>
> Firstly, interfaces are purely abstract, right? There's no way to
> provide a default/partial implementation except creating an object type
> which implements that interface.
>
> Secondly, we can create an object type which implements two or more
> interfaces. But I guess there's no multiple inheritance from classes, so
> you couldn't use two implementations of two different interfaces
> directly when creating a new type. Is this right? You'd need to use, for
> example, member objects and use proxy calls.
I think the answer depends on what is meant under "implementation":
1. Implementation of the values
(data implementation)
2. Implementation of the primitive operations
(type interface implementation)
3. Implementation of class-wide operations
(class interface implementation)
--
Regards,
Dmitry A. Kazakov
http://www.dmitry-kazakov.de
next prev parent reply other threads:[~2005-10-18 13:18 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-10-18 12:49 About 0Y interfaces Alex R. Mosteo
2005-10-18 13:18 ` Dmitry A. Kazakov [this message]
2005-10-18 14:34 ` Alex R. Mosteo
2005-10-18 16:54 ` Dmitry A. Kazakov
2005-10-18 16:36 ` Pascal Obry
2005-10-18 22:01 ` Randy Brukardt
2005-10-19 9:08 ` Brian May
2005-10-19 21:51 ` Randy Brukardt
2005-10-20 6:44 ` Alex R. Mosteo
2005-10-19 9:11 ` Pascal Obry
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