From: "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de>
Subject: Re: Ada Singleton Pattern
Date: Mon, 13 Sep 2004 17:33:24 +0200
Date: 2004-09-13T17:33:24+02:00 [thread overview]
Message-ID: <14p6ezf3vze8j$.j05arkr066wi.dlg@40tude.net> (raw)
In-Reply-To: %Fi1d.245967$OR2.11136154@news3.tin.it
On Mon, 13 Sep 2004 15:04:27 GMT, Luca Stasio wrote:
> Hi, there is a way to implement the Singleton Pattern in Ada?
> There are some examples out there?
> Thanx.
package Foo is
type Singleton (<>) is limited private;
... -- Public interface subroutines
The_Only_One : constant Singleton; -- The value
private
type Singleton is new Integer; -- Any implementation you want
The_Only_One : constant Singleton := 5;
The public view of Singleton is unconstrained and limited, which prevents
it from either being copied or declaring new objects of this type.
--
Regards,
Dmitry A. Kazakov
http://www.dmitry-kazakov.de
next prev parent reply other threads:[~2004-09-13 15:33 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-09-13 15:04 Ada Singleton Pattern Luca Stasio
2004-09-13 15:33 ` Dmitry A. Kazakov [this message]
2004-09-13 16:18 ` Luca Stasio
2004-09-13 17:01 ` Luca Stasio
2004-09-13 18:43 ` Martin Dowie
2004-09-13 19:37 ` Martin Dowie
2004-09-14 2:29 ` Steve
2004-09-14 8:52 ` Martin Dowie
2004-09-14 12:46 ` Jim Rogers
2004-09-14 13:57 ` Luca Stasio
2004-09-13 20:38 ` Georg Bauhaus
2004-09-14 8:17 ` Dmitry A. Kazakov
2004-09-14 13:56 ` Luca Stasio
2004-09-14 14:21 ` Florian Weimer
2004-09-14 14:48 ` Dmitry A. Kazakov
2004-09-14 15:04 ` Florian Weimer
2004-09-15 7:33 ` Dmitry A. Kazakov
2004-09-16 6:48 ` Florian Weimer
2004-09-16 7:45 ` Dmitry A. Kazakov
2004-09-14 15:38 ` Luca Stasio
2004-09-14 16:32 ` Florian Weimer
2004-09-14 17:43 ` Luca Stasio
2004-09-15 7:27 ` Martin Dowie
2004-09-15 19:38 ` Luca Stasio
2004-09-15 5:43 ` Matthew Heaney
2004-09-15 19:38 ` Luca Stasio
2004-09-18 21:47 ` Pylinius
2004-09-19 4:19 ` Matthew Heaney
2004-09-20 3:03 ` Pylinius
2004-09-23 7:35 ` Luca Stasio
2004-09-27 5:22 ` Pylinius
2004-09-27 8:05 ` Luca Stasio
2004-10-05 17:55 ` Luca Stasio
replies disabled
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox