private void createObjects(PersistenceManager pm) {
Transaction tx = pm.currentTransaction();
tx.begin();
Date date = new Date();
Person p1 = new Person(1L, "Craig", "Russell", null, date, null);
Employee p2 = new FullTimeEmployee(2L, "Michael", "Bouschen", null, date, null, date, 0.0);
Employee p3 = new PartTimeEmployee(3L, "Michelle", "Caisse", null, date, null, date, 0.0);
Employee p4 = new FullTimeEmployee(4L, "Victor", "Kirkebo", null, date, null, date, 0.0);
pm.makePersistent(p1);
pm.makePersistent(p2);
pm.makePersistent(p3);
pm.makePersistent(p4);
tx.commit();