From: "Thomas Løcke" <thomas@12boo.net>
Subject: Re: Little people supporting Ada, possibly through AdaCore?
Date: Tue, 17 Jul 2012 17:06:28 +0200
Date: 2012-07-17T17:06:28+02:00 [thread overview]
Message-ID: <50057f74$0$285$14726298@news.sunsite.dk> (raw)
In-Reply-To: <db936361-76f2-4434-ad04-d7e903b470bb@googlegroups.com>
On 07/17/2012 03:47 PM, Adrian Hoe wrote:
> Yeah, but looks like GNATColl.JSON has mixed up the order of objects. So, if objects are created in the order of company_name, vat_no, hours, product and web as in procedure Set_Core_Company_Data then it should be left as it is. The objects should be traversed in the same order as they were created but the output shows company_name, web, product, hours and vat_no. I don't mean it is the job of GNATColl.JSON to sort the objects according to some orders. The question is: Why the objects cannot be traversed in the original order as they are created?
If you look at the code you'll see they are using a plain
Ada.Containers.Indefinite_Hashed_Maps for storage, and some simple
recursion in the Write function. The original order of the objects
are lost forever when they are added to a hashed map. There's no
sequence, only a collection of JSON_Value objects.
There's no way to sort the contents of an Indefinite_Hashed_Maps
container without "wasting" processing time, and since order doesn't
matter in JSON, I don't think the GNATColl devs have spent an awful lot
of time on making sure some sort of arbitrary order is maintained.
--
Thomas L�cke | thomas@12boo.net | http://12boo.net
next prev parent reply other threads:[~2012-07-22 9:56 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-05-04 13:26 Little people supporting Ada, possibly through AdaCore? Patrick
2012-05-04 14:36 ` Marc C
2012-07-16 15:47 ` Adrian Hoe
2012-07-16 18:13 ` Marc C
2012-07-17 1:58 ` Adrian Hoe
2012-07-17 6:00 ` Thomas Løcke
2012-07-17 13:47 ` Adrian Hoe
2012-07-17 15:06 ` Thomas Løcke [this message]
2012-07-18 13:33 ` Marc C
2012-07-18 17:14 ` Dmitry A. Kazakov
2012-07-18 17:49 ` Simon Wright
2012-07-18 20:57 ` Vasiliy Molostov
2012-07-19 8:08 ` Dmitry A. Kazakov
2012-07-19 12:12 ` Vasiliy Molostov
2012-07-19 13:22 ` Georg Bauhaus
2012-07-21 17:01 ` Vasiliy Molostov
2012-07-20 2:51 ` Randy Brukardt
2012-07-21 17:04 ` Vasiliy Molostov
2012-07-19 7:45 ` Maciej Sobczak
2012-07-19 8:23 ` Dmitry A. Kazakov
2012-07-19 12:42 ` Maciej Sobczak
2012-07-19 14:05 ` Dmitry A. Kazakov
2012-07-19 1:01 ` gautier_niouzes
2012-05-04 17:55 ` Manuel Gomez
2012-05-04 19:59 ` okellogg
2012-05-05 17:13 ` Simon Wright
2012-05-06 16:26 ` okellogg
2012-05-06 16:42 ` Yannick Duchêne (Hibou57)
2012-05-06 16:55 ` Simon Wright
2012-05-06 17:21 ` Yannick Duchêne (Hibou57)
2012-05-06 19:33 ` Simon Wright
2012-05-20 13:38 ` okellogg
2012-05-05 14:17 ` Marco
2012-05-06 13:01 ` Lucretia
2012-05-04 19:28 ` gautier_niouzes
2012-05-05 13:28 ` Pascal Obry
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