public function creaDaArray($row)
{
$esame = new Esame();
$esame->setId($row['esami_id']);
$esame->setData(new DateTime($row['esami_data']));
$esame->setVoto($row['esami_voto']);
$esame->setStudente(UserFactory::instance()->creaStudenteDaArray($row));
$esame->setInsegnamento(InsegnamentoFactory::instance()->creaDaArray($row));
return $esame;
}