Setting up an inheritance with Hibernate - mysql

Question

I've been trying to set up inheritance in my Spring boot project, but I failed to do so. I've tried using the superclass mappings, joined table, single table but still I think I'm missing something. Here is how the classes look like:
Person class:
#Entity
#MappedSuperclass
#Table(name = "person")
public class Person {
#Id
#GeneratedValue(strategy = GenerationType.IDENTITY)
#Column(name = "id_person", nullable = false)
private Integer id;
#Column(name = "first_name", nullable = false, length = 200)
private String firstName;
#Column(name = "last_name", nullable = false, length = 200)
private String lastName;
#Column(name = "PESEL", nullable = false)
private Integer pesel;
#OneToOne(fetch = FetchType.LAZY, mappedBy = "person")
private Driver driver;
//setters and getters below
}
Driver class:
#Entity
#Table(name = "driver")
public class Driver {
#Id
#Column(name = "id_driver", nullable = false)
private Integer id;
#MapsId
#OneToOne(fetch = FetchType.LAZY)
#JoinColumn(name = "id_driver")
private Person person;
#Column(name = "birth_date", nullable = false)
private LocalDate birthDate;
#Column(name = "license", nullable = false, length = 200)
private String license;
#OneToMany(mappedBy = "idDriver")
private Set<Ride> rides = new LinkedHashSet<>();
//setters and getters below
}
Here's how it is joined in the database (mysql):
I would be very thankful if you could at least point me in the right direction (like which inheritance type will suit this simple case the best)

Answer 1

First remove the #Entity and #Table annotations, as well as the relationship, from your superclass:
#MappedSuperclass
public class Person {
#Id
#GeneratedValue(strategy = GenerationType.IDENTITY)
#Column(name = "id_person", nullable = false)
private Integer id;
#Column(name = "first_name", nullable = false, length = 200)
private String firstName;
#Column(name = "last_name", nullable = false, length = 200)
private String lastName;
#Column(name = "PESEL", nullable = false)
private Integer pesel;
//setters and getters below
}
Secondly, remove the duplicated id column and remove the relationship between the mapped superclass and your derived classes, and actually extend the superclass:
#Entity
#Table(name = "driver")
public class Driver extends Person{
#Column(name = "birth_date", nullable = false)
private LocalDate birthDate;
#Column(name = "license", nullable = false, length = 200)
private String license;
#OneToMany(mappedBy = "idDriver")
private Set<Ride> rides = new LinkedHashSet<>();
//setters and getters below
}