问题
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);
}
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() }
}
Would this work, I mean;
- Can I use @MappedSuperclass annotation on an interface?
- Does Hibernate have support for interfaces?
回答1:
No. As stated here:
JPA has no direct support for interfaces or variable relationships.
来源:https://stackoverflow.com/questions/49045027/can-i-use-mappedsuperclass-annotation-on-an-interface