小编Ell*_*ead的帖子

我有以下两个具有双向OneToOne关系映射的实体,数据访问由Hibernate EntityManager v."3.5.1-Final"提供.

@Entity
@Table(name = "details")
public class Details {
    private Long id;
    private User user;

    public void setUser(User user) {
        this.user = user;
    }

    @OneToOne  
    @JoinColumn(name="user_id") 
    public User getUser() {
        return user;
    }

    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    @Column(name = "id", unique = true, nullable = false)
    public Long getId() {
        return id;
    }

    private void setId(Long id) {
        this.id = id;
    }
}

和:

@Entity
@Table(name = "users")
public class User {
private Long id;
private Details details; …