Inheritance JPA Inheritance.JOINED does not work as it should

Question

Hello, I have the following classes Person, Personal and Personal. The last two classes share the same primary key of the class Person, that is, the primary key and foreign key of the tables Personal and Personal match the primary key of the table Person. Connect there in the diagram:

Pessoa.java

@AllArgsConstructor
@NoArgsConstructor
@Data
@Entity
@Inheritance(strategy = InheritanceType.JOINED)
@Table(name="pessoa")
public class Pessoa implements Serializable {
    private static final long serialVersionUID = 1L;

    @Id
    @GeneratedValue(strategy=GenerationType.IDENTITY)
    @Column(unique=true, nullable=false)
    private Long idpessoa;

    @NotNull(message = "O atributo nome não pode ser nulo.")
    @Column(nullable=false, length=255)
    private String nome;
}

Personal Java.

@AllArgsConstructor
@NoArgsConstructor
@Data
@EqualsAndHashCode(callSuper = false)
@Entity
@Table(name="pessoa_fisica")
public class PessoaFisica extends Pessoa {
    private static final long serialVersionUID = 1L;

    @Column(nullable = false, length = 14)
    private String cpf;

}

Personal.java.

@AllArgsConstructor
@NoArgsConstructor
@Data
@EqualsAndHashCode(callSuper = false)
@Entity
@Table(name="pessoa_juridica")
public class PessoaJuridica extends Pessoa {
    private static final long serialVersionUID = 1L;

    @Column(nullable = false, length = 18)
    private String cnpj;


}

Everything should work like this, I persist a person in the bank. With that person’s id I need to associate her for either an individual or a legal person, that is, I can’t have a physical and legal person with the same id. At the time of saving and recovering a person everything ok, but if for example, to save a physical person happens an error saying that name can not be null. This is confusing since the concept of InheritanceType.JOINED each class should only persist its own attributes, the only thing shared is the primary key. Am I wrong? The only thing I want is to save cpf, idpessoa, only attributes belonging to the subclass and its entity.

Answer 1

All solution was reported in the comments:

Pessoa.java

@AllArgsConstructor
@NoArgsConstructor
@Data
@Entity
@Inheritance(strategy = InheritanceType.JOINED)
@Table(name="pessoa")
public abstract class Pessoa implements Serializable {
    private static final long serialVersionUID = 1L;

    @Id
    @GeneratedValue(strategy=GenerationType.IDENTITY)
    @Column(unique=true, nullable=false)
    private Long idpessoa;

    @NotNull(message = "O atributo nome não pode ser nulo.")
    @Column(nullable=false, length=255)
    private String nome;
}

Personal Java.

@AllArgsConstructor
@NoArgsConstructor
@Data
@EqualsAndHashCode(callSuper = false)
@Entity
@Table(name="pessoa_fisica")
public class PessoaFisica extends Pessoa {
    private static final long serialVersionUID = 1L;

    @Column(nullable = false, length = 14)
    private String cpf;

}

Personal.java.

@AllArgsConstructor
@NoArgsConstructor
@Data
@EqualsAndHashCode(callSuper = false)
@Entity
@Table(name="pessoa_juridica")
public class PessoaJuridica extends Pessoa {
    private static final long serialVersionUID = 1L;

    @Column(nullable = false, length = 18)
    private String cnpj;

}

The class Pessoa.java is available for requests GET and DELETE. But being Abstract is impossible to instantiate an object through a POST. To instantiate a physical person I need to put the attributes of person, as name and the rest of the attributes of the physical person class itself. So the same is true for the legal person. So there is no natural or legal person who has the same id.