Well, ok .. completely blind :) But however, I tried to use it and figured out that it isn't the right solution for the problem. In the meantime I solved it by decorating DataContext and suppliying a performQuery() method that automatically adds all new objects to the result list and also removes deleted objects from it.
Some time ago I used to work with EOF and I have in mind that this behaviour was the default. So I thought it could be accomplished in Cayenne, too. But that apparently isn't the case. Markus Robert Zeigler-6 wrote: > > ? It's still there: > > http://cayenne.apache.org/doc/api/org/apache/cayenne/exp/Expression.html > > filter and filterObjects are both very much alive and well, but note > that it's filterObjects, rather than filterObject. > > Robert > > On Apr 25, 2009, at 4/2512:27 PM , Markus Lux wrote: > >> >> Hi, >> >> I've got a problem regarding queries on uncommitted DataContexts >> containing >> new or deleted objects. If I insert a new object into a DataContext >> using >> newObject(), this object won't show up in a SelectQuery. The result >> of this >> query contains only persistent objects from the database but >> excludes the >> new, uncommitted object. The same behaviour applies to the >> counterpart: >> deleted, uncommitted objects will show up in such a query. >> >> I did a bit research on that problem and stumbled upon an older post >> in this >> mailing list where it has been suggested to use >> Expression.filterObject() to >> accomplish a similar behaviour. Since this method is not present >> anymore, I >> guess that it had been removed in Cayenne 3. >> >> So how do I include/exclude the aforementioned, uncommitted objects >> in a >> query? >> >> Thanks, Markus >> -- >> View this message in context: >> http://www.nabble.com/Query-on-uncommitted-DataContext-tp23234428p23234428.html >> Sent from the Cayenne - User mailing list archive at Nabble.com. >> > > > -- View this message in context: http://www.nabble.com/Query-on-uncommitted-DataContext-tp23234428p23241592.html Sent from the Cayenne - User mailing list archive at Nabble.com.
