On May 12, 2009, at 4:40 AM, Jeremias Maerki wrote:
While I'm at it: Can I ask why DeleteQuery has been deprecated? I'd
rather use that instead of EJBQLQuery. Not having to concatenate
strings
to build queries is one of the features that makes Cayenne appeal to
me
so much. I've had stuff like that back in my Delphi times and I liked
that very much.
The problem with DeleteQuery (or EJBQL delete for that matter) is that
it didn't clean up in-memory objects that were deleted in the DB. So
the feeling was that it is conceptually wrong as a public user API.
The preferred way is get a hold of an object and do
context.deleteObject(..).
Of course the need for a batch delete operation doesn't completely go
away with the above. I guess we may need to work on getting it right
as a part of the planned post 3.0 effort to merge redundant queries
together and provide them all with a non-String OO creation interface.
Andrus
