public DriverNIF(long nif)
{
if (!NumberValidator.isValidNIF(nif))
{
throw new BusinessRuleValidationException(nif + " invalid: Driver NIF is invalid");
}
if (NumberValidator.isNegative(nif))
{
throw new BusinessRuleValidationException(nif + " invalid: Driver NIF can't be negative");
}
this.nif = nif;
}