So you create an objectA and objectB and commitChanges() did i get you know?
----- Original Message -----
From: "Lothar Krenzien" <lkrenzie..eb.de>
To: <cayenne-use..bjectstyle.org>
Sent: Wednesday, March 15, 2006 1:03 PM
Subject: Re: caching problem ?
Because I create a new object there's nothing I can change. And all of my
objects are in the same DC. But as I wrote in my first post for me it looks
like that cayenne tries to get the objects from database instead of using
the cache. And because the transaction isn't committed the data can't be
found. I forgot to say that I'm using a datetime parameter as condition in
the select query. Could that cause the problem ?
> -----Ursprüngliche Nachricht-----
> Von: cayenne-use..bjectstyle.org
> Gesendet: 15.03.06 12:44:26
> An: <cayenne-use..bjectstyle.org>
> Betreff: Re: caching problem ?
> Hello,
> I am not really sure if Cayenne commits the changes as Atomic unit but
first
> i would check this.
>
> So, Your problem is you want to be sure that changes in tableA as well as
> tableB must be written or none.
>
> usually this should do the job:
> Change object from tableA,
> Change object from tableB,
> DataContext.commitChanges(); // You must be sure the changes from obejctA,
> objectB are in the same DC.
> // maybe another constellation would also work. however. ...
>
> Cayanne "would" keep the changes in sync, All or nothing.
> Did you try this?
>
>
> Of course what you explained should work anyway, i cant see any problem in
> write/read/write sequence.
>
> Sako.
> ----- Original Message -----
> From: "Lothar Krenzien" <lkrenzie..eb.de>
> To: <cayenne-use..bjectstyle.org>
> Sent: Wednesday, March 15, 2006 12:18 PM
> Subject: caching problem ?
>
>
> > Hi ,
> >
> > I've notified a problem which I don't really understand.
> >
> > I'm doing an insert into tableA, read from tableA and insert the data
into
> tableB. Because I want to save all or nothing I commit the transaction
after
> the last insert. But it looks like that insert data in tableA are not
found
> after the insert because the data in tableB were not inserted. In the
> logfile I can see that the select don't return any data. When I commit the
> transaction after inserting into tableA it seems to work. But that's not
> what I want. So could it be a caching problem ? And I get no error from
the
> database.
> >
> > Here's an example of what I want to do:
> >
> > insert into tableA
> > read from tableA
> > insert the just read data into tableB
> > commit
> >
> > cayenne 1.2 M10 + MSSQL 2000 + jtds
> >
> > Thanks, Lothar
> >
> > P.S: I've just read about caching in the cayenne user guide
> (http://www.objectstyle.org/cayenne/userguide/fetch/result-caching.html).
I
> there a way to set the caching policy once for all queries ? In the
cayenne
> modeler the option 'Use shared cache' is set for the used domain node.
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>
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