Re: [gnome-db] transaction changes.

[Bas Driessen <bas driessen xobas com>]

On Thu, 2006-11-16 at 09:23 +0100, Vivien Malerba wrote:
> On 11/16/06, Bas Driessen <bas driessen xobas com> wrote:
> >
> >  Hello,
> >
> >  Apparently the transaction section has been completely reworked and have to
> > adjust my code for it. So how do i migrate this:
> >
> >  -1 Rename GdaTransaction  to GdaTransactionStatus
> >  -2 Rename gda_transaction_new to gda_transaction_status_new
> >  -3 Isolation level.... If in my old code I set:
> >
> >  gda_transaction_set_isolation_level (trans,
> > GDA_TRANSACTION_ISOLATION_SERIALIZABLE);
> >
> >  How do I set this in the new situation as I can't find a similar named
> > function?
> >
> >  -4 what else?
> >
>
> The transaction model was difficult to use and to understand (I had
> problems ubderstanding it while reading the code), so I decided to
> change it in a way that it's easier to use and understand.
>
> Your code should now take into account that:
> * to start a transaction, use gda_connection_begin_transaction(), and
> use the other similar functions to commit it or roll it back.
> * no need for a GdaTransaction object anymore
> * the GdaCommand object has no notion of transaction, it's the
> connection which is used to execute the command which may be or not in
> a transaction.
>
> Moreover, support for save points has been added for the providers
> which support them, and a new GdaTransactionStatus object has been
> added which helps keep track of the "transactional status" of a
> connection: it lists the started transaction, the savepoints, the
> sub-transactions and the queries which have been run while in a
> transaction.
>
> I'm sorry there is not yet any doc for that, it's on my TODO list when
> the work is finished around the new transaction model.

Thanks Vivien. Trying/testing the changes you are suggesting now.

Bas.