I have to check if some objects (in my preference list) are contained in the list i have.
This causes a net.sf.hibernate.NonUniqueObjectException (only if cascade=save-update, with none i have not this problm..but other problem ;)...)

So i can't have this 2 lists loaded in the same session...
I implementing the open-session-in-view pattern so all this operations have to be done with an opened session.

How to solve the problem?
thanks in advance

Agori,

please supply some additional data. See the link in the red box above (when posting) what to supply.

Sorry,

Something like that throws that exception in some situations:

Set preferred = utente.getNormativeSegnate();
for (int i = 0; i < results.size(); ++i) {
boolean flag = false;
for (Iterator prefs = preferred.iterator(); prefs.hasNext();) {
Preferito p = (Preferito) prefs.next();
Normativa normativa = (Normativa) results.get(i);
if (p.getNormativa().getId().equals(normativa.getId())) {
signed.add("true");
flag = true;
break;
}
}
if (!flag) {
signed.add("false");
}
}

you can see that "Preferito p" contains a field of type Normativa. So when I do p.getNormativa().... i am loading another normativa, that sometimes is already in the session (in the "results list" of Normativa objects).


I don't know how to obtain the comparison in the code without going in to this exception!