如何从同一模型中的不同表中检索对象列表？

Question

我有两个模型，它们都使用hibernate并使用mySQL，它们有一个ManyToOne关系，我使用AngularJS来显示视图。我想知道是否有办法从TraineeStatus模型中检索对象列表并将其存储在Trainee模型中？

TraineeStatus.java

@Entity
public class Trainees {

    @Id
    @GeneratedValue
    private int traineesID;
    @ManyToOne
    private Technologies technologies;
    @ManyToOne
    private TraineeStatus traineestatus;
    private int customersID;
    private String name;
    private String surname;
    private String phoneDetails;
    private String email;

    public Trainees(){

    }

    public Trainees(String name, String surname, String phoneDetails, String email, int id, Technologies technologies, TraineeStatus traineestatus, int customersID) {
        super();
        this.name = name;
        this.surname = surname;
        this.email = email;
        this.phoneDetails = phoneDetails;
        this.technologies = technologies;
        this.traineestatus = traineestatus;
        this.customersID = customersID;
    }
//getters and setters

TraineeStatus.java

@Entity
@Table(name="traineeStatus")
public class TraineeStatus {

    @Id
    @GeneratedValue
    private int traineeStatusId;
    private String value;

    public TraineeStatus(){

    }

我的目标是从TraineeStatus中检索一个对象数组，其中包含id和value，并在我的Trainees模型中使用它。有可能吗？谢谢。

Answer 1

试试吧

@Entity
@Table(name="traineeStatus")
public class TraineeStatus {


   @OneToMany(mappedBy = "traineestatus")
   private List<Trainees> orderItems;

   ...

   // GETTERS and SETTERS

}