Один из способов добиться того, что вам нужно, - это OneToMany relationship between Person and LegalGuardian_Person, и избегать таблицы соответствия у нас также может быть ManyToOne relationship between LegalGuardian_Person and Person.
@Entity
class LegalGuardian_Person {
@Id@GeneratedValue(strategy = GenerationType.IDENTITY)
private int id;
@OneToOne
private Person legGuard_person_id;
@OneToOne
private Person representative;
@ManyToOne
private Person represented_person;
//getters and setters
}
@Entity
public class Person {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private int personId;
private String name;
private String surname;
@OneToMany(mappedBy = "represented_person")
Set<LegalGuardian_Person> legalGuardian_personSet;
//getters and setters
public static void main(String[] args) {
Person Maria = new Person();
Maria.setName("Maria");
Maria.setSurname("Doe");
Person Michael = new Person();
Michael.setName("Michael");
Michael.setSurname("Doe");
Person John = new Person();
John.setName("John");
John.setSurname("Doe");
{
SessionFactory sessionFactory = new Configuration().configure().buildSessionFactory();
Session session = sessionFactory.openSession();
Transaction transaction = session.beginTransaction();
session.save(Maria);
session.save(Michael);
session.save(John);
LegalGuardian_Person John_LegalGuardian_Person = new LegalGuardian_Person();
John_LegalGuardian_Person.setRepresented_person(John);
John_LegalGuardian_Person.setLegGuard_person_id(Maria);
session.save(John_LegalGuardian_Person);
Set<LegalGuardian_Person> legalGuardian_personSet = new HashSet<>();
legalGuardian_personSet.add(John_LegalGuardian_Person);
John_LegalGuardian_Person = new LegalGuardian_Person();
John_LegalGuardian_Person.setRepresented_person(John);
John_LegalGuardian_Person.setLegGuard_person_id(Michael);
session.save(John_LegalGuardian_Person);
legalGuardian_personSet.add(John_LegalGuardian_Person);
John.setLegalGuardian_personSet(legalGuardian_personSet);
transaction.commit();
session.close();
}
{
SessionFactory sessionFactory = new Configuration().configure().buildSessionFactory();
Session session = sessionFactory.openSession();
Person person = session.get(Person.class, 3);
person.legalGuardian_personSet.forEach(legalGuardian_person -> System.out.println(legalGuardian_person.getLegGuard_person_id().getName()));
session.close();
}
}
}
Таблицы, созданные hibernate и Output
Hibernate: create table LegalGuardian_Person (id integer not null auto_increment, legGuard_person_id_personId integer, representative_personId integer, represented_person_personId integer, primary key (id)) engine=MyISAM
Hibernate: create table Person (personId integer not null auto_increment, name varchar(255), surname varchar(255), primary key (personId)) engine=MyISAM
Hibernate: alter table LegalGuardian_Person add constraint FKoe3yay7hrvwic3od1f7ibdm0k foreign key (legGuard_person_id_personId) references Person (personId)
Hibernate: alter table LegalGuardian_Person add constraint FKc7p7lx5e837i0blk0q1ukydnk foreign key (representative_personId) references Person (personId)
Hibernate: alter table LegalGuardian_Person add constraint FKpkmx0g3ix2myf9py309ngwfaa foreign key (represented_person_personId) references Person (personId)
Hibernate: insert into Person (name, surname) values (?, ?)
Hibernate: insert into Person (name, surname) values (?, ?)
Hibernate: insert into Person (name, surname) values (?, ?)
Hibernate: insert into LegalGuardian_Person (legGuard_person_id_personId, representative_personId, represented_person_personId) values (?, ?, ?)
Hibernate: insert into LegalGuardian_Person (legGuard_person_id_personId, representative_personId, represented_person_personId) values (?, ?, ?)
Hibernate: alter table LegalGuardian_Person add constraint FKoe3yay7hrvwic3od1f7ibdm0k foreign key (legGuard_person_id_personId) references Person (personId)
Hibernate: alter table LegalGuardian_Person add constraint FKc7p7lx5e837i0blk0q1ukydnk foreign key (representative_personId) references Person (personId)
Hibernate: alter table LegalGuardian_Person add constraint FKpkmx0g3ix2myf9py309ngwfaa foreign key (represented_person_personId) references Person (personId)
Hibernate: select person0_.personId as personId1_1_0_, person0_.name as name2_1_0_, person0_.surname as surname3_1_0_ from Person person0_ where person0_.personId=?
Hibernate: select legalguard0_.represented_person_personId as represen4_0_0_, legalguard0_.id as id1_0_0_, legalguard0_.id as id1_0_1_, legalguard0_.legGuard_person_id_personId as legGuard2_0_1_, legalguard0_.representative_personId as represen3_0_1_, legalguard0_.represented_person_personId as represen4_0_1_, person1_.personId as personId1_1_2_, person1_.name as name2_1_2_, person1_.surname as surname3_1_2_, person2_.personId as personId1_1_3_, person2_.name as name2_1_3_, person2_.surname as surname3_1_3_ from LegalGuardian_Person legalguard0_ left outer join Person person1_ on legalguard0_.legGuard_person_id_personId=person1_.personId left outer join Person person2_ on legalguard0_.representative_personId=person2_.personId where legalguard0_.represented_person_personId=?
Maria
Michael