Olá senhores
Eu estava fazendo alguns testes, e me deparei com um problema
Reparei que quando faço um insert com CascadeType.PERSIST, ao inserir a filha o hibernate não insere a entidade filha já com o id do pai
Ele faz o insert e depois faz o update da FK, e isso me força a deixar o campo dept_id podendo ser null.
O framework trabalha realmente desse jeito ? Alguém sabe me informar ?
Relacionamentos
@Entity
@Data
public class Department {
@Id
@GeneratedValue
private UUID id;
private String name;
@OneToMany(cascade={CascadeType.PERSIST})
@JoinColumn(name = "dept_id")
List<Employee> employees = new ArrayList<>();
}
@Entity
@Data
public class Employee {
@Id
@GeneratedValue
private UUID id;
private String name;
private String email;
private Date dateOfBirth;
@ManyToOne()
@JoinColumn(name = "dept_id", referencedColumnName = "id")
@JsonBackReference
private Department department;
}log
2020-10-06 01:42:03.993 DEBUG 11552 --- [nio-8080-exec-2] org.hibernate.SQL :
insert
into
department
(name, id)
values
(?, ?)
Hibernate:
insert
into
department
(name, id)
values
(?, ?)
2020-10-06 01:42:03.999 TRACE 11552 --- [nio-8080-exec-2] o.h.type.descriptor.sql.BasicBinder : binding parameter [1] as [VARCHAR] - [TI]
2020-10-06 01:42:03.999 TRACE 11552 --- [nio-8080-exec-2] o.h.type.descriptor.sql.BasicBinder : binding parameter [2] as [OTHER] - [71d8a5fd-8097-469d-bfe3-9297fc862c6c]
2020-10-06 01:42:04.002 DEBUG 11552 --- [nio-8080-exec-2] org.hibernate.SQL :
insert
into
employee
(date_of_birth, dept_id, email, name, id)
values
(?, ?, ?, ?, ?)
Hibernate:
insert
into
employee
(date_of_birth, dept_id, email, name, id)
values
(?, ?, ?, ?, ?)
2020-10-06 01:42:04.003 TRACE 11552 --- [nio-8080-exec-2] o.h.type.descriptor.sql.BasicBinder : binding parameter [1] as [TIMESTAMP] - [Wed Mar 22 21:00:00 BRT 1995]
2020-10-06 01:42:04.003 TRACE 11552 --- [nio-8080-exec-2] o.h.type.descriptor.sql.BasicBinder : binding parameter [2] as [OTHER] - [null]
2020-10-06 01:42:04.003 TRACE 11552 --- [nio-8080-exec-2] o.h.type.descriptor.sql.BasicBinder : binding parameter [3] as [VARCHAR] - [legend@spacer]
2020-10-06 01:42:04.003 TRACE 11552 --- [nio-8080-exec-2] o.h.type.descriptor.sql.BasicBinder : binding parameter [4] as [VARCHAR] - [Legend Thugueder]
2020-10-06 01:42:04.003 TRACE 11552 --- [nio-8080-exec-2] o.h.type.descriptor.sql.BasicBinder : binding parameter [5] as [OTHER] - [842018ca-fea1-42a2-91a8-c4a3f422e8b1]
2020-10-06 01:42:04.007 DEBUG 11552 --- [nio-8080-exec-2] org.hibernate.SQL :
update
employee
set
dept_id=?
where
id=?
Hibernate:
update
employee
set
dept_id=?
where
id=?
2020-10-06 01:42:04.007 TRACE 11552 --- [nio-8080-exec-2] o.h.type.descriptor.sql.BasicBinder : binding parameter [1] as [OTHER] - [71d8a5fd-8097-469d-bfe3-9297fc862c6c]
2020-10-06 01:42:04.007 TRACE 11552 --- [nio-8080-exec-2] o.h.type.descriptor.sql.BasicBinder : binding parameter [2] as [OTHER] - [842018ca-fea1-42a2-91a8-c4a3f422e8b1]
