Bi-Directional One to One Relationship managed by Foo.class

Hibernate

Bi-Directional One to One Relationship managed by Foo.class

June 11, 2022 by aAshish

@Entity
@Table(name = "FOO")
public class Foo {
  private UUID fooId;

  @OneToOne(cascade = CascadeType.ALL)
  @JoinColumn(name = "barId")
  private Bar bar;
}

@Entity
@Table(name = "BAR")
public class Bar {
  private UUID barId;

  @OneToOne(mappedBy = "bar")
  private Foo foo;
}

Specifies a two-way relationship between one Foo object to one Bar object using a foreign key.

The Foo objects are stored as rows in a table called FOO. The Bar objects are stored as rows in a table called BAR. The

foreign key is stored on the FOO table in a column called barId.

Note that the mappedBy value is the field name on the object, not the column name.