How do I call a DeleteAllQuery stored in the session object?

Question

Hi all,
I have a DeleteAllQuery that I have stored in my session object by name (PURGE_IRLE):
srvSession.addQuery(DaoConst.PURGE_IRLE, delq);
I have RTFM:ed but the only description for deleteing that I could find delets individual objects. I couldn't find an example for DeleteAllQuery. :-(
I set the reference class when I define the query but I'm confused by the getObjects() and setObjects() methods.
Q1: When do I need to call them?
Q2: How do I call this query?
Q3: Which Session.executeQuery(...) should I use? (this relates to 1 & 2).
Q4: How do I get back the number of rows deleted? execute returns an Object; can I assume it's an Integer containing the numbers of rows deleted?
Many thanks in advance,
Andrei Lenkei

Answer 1

Ok, but this causes me some problems because:
1) I can't really use SQL because I need a notExists subquery access on a TopLink object that represents a join (in the pre-TopLink version of the code the object was represented by a temporary table; I could put that whole select as a subquery to the subquery but that's not very elegant and would be quite inefective)
2) This could be hundreds/thousands of row; wouldn't deleteing them 1-by-1 be extremly inefective?
Isn't there a way i can call the DeleteAllQuery the same way TopLink would call it?
Regards,
Andrei Lenkei