Re: to_reference

Il giorno lun, 29/05/2006 alle 08.12 +0200, Cyril ADRIAN ha scritto:
> Hi Paolo
> 
> On 5/28/06, Paolo Redaelli <[email protected]> wrote:
> > Why don't you publish it somewhere, even in the current state, for
> > example on gna.org? This way we would be able to avoid duplication of
> > efforts....
> 
> I'll do something of the kind very soon. I just want to be sure that I
> have something we can discuss (and that compiles!)
Compiling code is the king. Good design is the queen. Handsome
performance is their price... 8)

> Meanwhile maybe I'll put an article here about the design.
> >         Paolo who puts his sqlite and postgresql wrappers in hold for a while
> > (at least until you answer me 8)
> Please don't stop! I'm greedy of backends ;-)
Oh no worries... I was just waiting for your email... meanwhile I will
go on with these (deferred) classes:
DATABASE 
PREPARED_STATEMENT
PREPARED_COMMAND inherit PREPARED_STATEMENT
PREPARED_QUERY  inherit PREPARED_STATEMENT
RESULT_SET [ROW->RESULT_ROW] inherit TRAVERSABLE [ROW] 
RESULT_ROW inherit TRAVERSABLE [SQL_DATA]


SQL_DATA a type yet to be implemented (and perhaps find a really good
name); it should be an object that can store any of the datatypes
directly handled by SQL: integers, numerics, real, date, time, datetime,
strings. I'll have a look at other implementation (i.e.: GnomeDb, ECLI,
elj, eiffel PG wrappers http://www.eiffelzone.com/esd/pg/index.html) to
avoid design flaws.
 I hope to be able to commit a proposal by 1st june (I'll be on holiday
from 2 to 5)...
	Paolo