MappedSuperclass - 更改子类中的 SequenceGenerator 而不在超类上使用 @GeneratedValue

Question

I have a base class:

@MappedSuperclass
public abstract class SuperClass{
    @Id
    protected Long id;

    public Long getId() {
        return id;
    }
}

The @GeneratedValue is not used since the id is generated using a BackendSession

There are a lot of inheritance from this class so one can't change it!

my sub class: I tried to override the getId method

@Entity
@Table(name = "FTC_DATA")
@SequenceGenerator(name="sequence", sequenceName = "FTC_DATA_SEQ")
@Inheritance(strategy = InheritanceType.SINGLE_TABLE)
public class SubClass extends SuperClass {

    @Override
    @GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "FTC_DATA_SEQ")
    public void getId(Long id) {
        this.id = id;
    }
}

But I fail on IdentifierGenerationException, what am I doing wrong?

Answer 1

Here's what worked for me. Remove getId() from SuperClass, remove the @Override from SubClass getId() and move the @Id annotation to the SubClass getId().