Thanks for the explanation. In the meantime I've found a good overview of transactions (http://www.objectstyle.org/confluence/display/CAYDOC/Understanding+Transactions) . But I will now implement an easier solution and passing the newly created object as parameter.
> -----Urspr�ngliche Nachricht-----
> Von: cayenne-use..bjectstyle.org
> Gesendet: 15.03.06 16:19:18
> An: cayenne-use..bjectstyle.org
> Betreff: Re: caching problem ?
> You won't see an uncommitted object in SelectQuery results. This has
> nothing to do with SelectQuery caching. One possible solution to that
> is manual transaction management (I suggest you use M11 for that ...
> if it doesn't work - nightly build, as there were some recent
> improvements)
>
> http://objectstyle.org/confluence/display/CAYDOC/Understanding
> +Transactions
>
> (see "User-Defined Transaction Scope" in the bottom). You can
> implement that "try" block from that Wiki example as follows:
>
>
> * insert
> * commit DataContext (this will flush changes to DB, but will NOT
> commit DB transaction because it is "external").
> * read from tableA
> * insert the just read data into tableB
> * commit DataContext (again this will be just flush, not commit)
>
> Andrus
>
> On Mar 15, 2006, at 2:18 PM, Lothar Krenzien wrote:
>
> > 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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