// Note: computer uses group, so group object has to be created first, but can
// be persisted later
OQLQuery computerOql = db.getOQLQuery(
"SELECT c FROM " + Computer.class.getName() + " c WHERE c.id = $1");
computerOql.bind(44);
results = computerOql.execute();
if (!results.hasMore()) {
Computer computerToCreate = new Computer();
computerToCreate.setId(44);
computerToCreate.setCpu("Pentium");