java - 如何在 pojo 类级别映射 2 个休眠表？

Question

嗨，我有 2 个用于 DutyManager 和 DMSchedule 的 pojo 课程

这是我的数据库表详细信息

表名,
Duty_Manager: Manager_ID, Title, Name, Age ,Address PK=Manager_ID

DM_Schedule：Schedule_ID、Manager_ID、From_Date、To_Date PK=Schedule_ID FK=Manager_ID

我应该如何使用休眠注释在 POJO 类级别进行映射。

Answer 1

@Entity
@Table(name = "Duty_Manager")
public class DutyManager {
@Id
@GeneratedValue(strategy = GenerationType.AUTO, generator = "my_entity_seq_gen")
@SequenceGenerator(name = "my_entity_seq_gen", sequenceName = "MNG_SEQ")
@Column(name = "MANAGER_ID")
private Long id;
@Column(name = "manager_title", nullable = false)
private String title;
@Column(name = "manager_name", nullable = false)
private String name;
@Column(name = "manager_age", nullable = false)
private int age;

public DutyManager() {
}


//getters and setters
}



@Entity
@Table(name = "DM_Schedule")
public class DM_Schedule {
@Id
@GeneratedValue(strategy = GenerationType.AUTO, generator = "my_entity_seq_gen")
@SequenceGenerator(name = "my_entity_seq_gen", sequenceName = "SCH_SEQ")
@Column(name = "Schedule_ID")
private Long id;
@ManyToOne
@JoinColumn(name = "manager_id", nullable = false)
private DutyManager manager;
@Column(name = "date_from", nullable = false)
private Date from;
@Column(name = "date_to", nullable = false)
private Date to;

public DM_Schedule() {
}


//getters and setters
}

编辑：如评论中所述，您还可以Collection<DM_Schedule>在Manager课堂上通过注释进行@OneToMany注释。