@Override
public int hashCode() {
int result = id != null ? id.hashCode() : 0;
result = 31 * result + (ssn != null ? ssn.hashCode() : 0);
result = 31 * result + (firstName != null ? firstName.hashCode() : 0);
result = 31 * result + (lastName != null ? lastName.hashCode() : 0);
result = 31 * result + (frequentFlyerMiles != null ? frequentFlyerMiles.hashCode() : 0);
result = 31 * result + (picture != null ? Arrays.hashCode(picture) : 0);
result = 31 * result + (dateOfBirth != null ? dateOfBirth.hashCode() : 0);
result = 31 * result + age;
result = 31 * result + (lastFlight != null ? lastFlight.hashCode() : 0);
result = 31 * result + (passengerType != null ? passengerType.hashCode() : 0);
result = 31 * result + (preferences != null ? preferences.hashCode() : 0);
result = 31 * result + (cards != null ? cards.hashCode() : 0);
result = 31 * result + (address != null ? address.hashCode() : 0);
result = 31 * result + (tickets != null ? tickets.hashCode() : 0);
return result;
}
