UpdateReviewRating proc = this.getProcedure(UpdateReviewRating.class);
assert (proc != null);
long iid = Long.valueOf(item_ids.get(rand.nextInt(item_ids.size())));
long uid = Long.valueOf(user_ids.get(rand.nextInt(user_ids.size())));
int rating = rand.nextInt(1000); // ???
proc.run(conn, iid, uid, rating);
}
public void updateTrustRating() throws SQLException {
UpdateTrustRating proc = this.getProcedure(UpdateTrustRating.class);
int uix= rand.nextInt(user_ids.size());