Question

I have a Task table. It has a foreign key task_status_id.
I have a TaskStatus table. It has two primary keys: task_status_id and lang_id.
I have a LanguageType table. It has a primary key lang_id.

I want to know how to map this relationship in hibernate.

Answer 1

I think this will probably do what you want:

@Entity
public class Task {
    @Id @GeneratedValue(strategy = GenerationType.AUTO)
    @Column(name = "task_id")
    private int id;
    @ManyToOne
    @JoinColumn(name = "task_status_id")
    TaskStatus status;
}

@Entity
public class TaskStatus {
    @Id @GeneratedValue(strategy = GenerationType.AUTO)
    @Column(name = "task_status_id")
    private int id;
    @ManyToOne
    @JoinColumn(name = "lang_id")
    LanguageType languageType;
}

@Entity
public class LanguageType {
    @Id
    @GeneratedValue(strategy = GenerationType.AUTO)
    @Column(name = "lang_id")
    private int id;
}

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