我可以在接口上使用@MappedSuperclass注释吗? [英] Can I use @MappedSuperclass annotation on an interface?

问题描述

我想在interface中对通用映射进行分组，但是我不能使用abstract superclass，因为我的实体已经扩展了另一个class.因此，我需要一个如下所示的界面:

I want to group common mappings in an interface, but I cannot use an abstract superclass because my entities already extend another class. So I need an interface like below:

@MappedSuperclass
public interface NamedEntity {
    @Column(name = "name")
    String getName();
    void setName(String name);
}

我想像下面这样使用它:

and I want to use it like below:

public class Person {
    private Long id;
    private String name;
    public Long getId(){ return id; }
    public void setId(Long id){ this.id = id; }
    public String getName() { return name; }
    public void setName(String name){ this.name = name; }
}

@Entity
@Table(name = "person_entity")
public class PersonEntity extends Person implements NamedEntity {
    @Id
    @GeneratedValue
    @Column(name = "id")
    @Override
    public Long getId() { return super.getId() }
}

我的意思是这项工作吗?

Would this work, I mean;

1. 我可以在接口上使用@MappedSuperclass注释吗?
2. Hibernate是否支持接口?

推荐答案

否.如所述此处:

JPA不直接支持接口或变量关系.

JPA has no direct support for interfaces or variable relationships.

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