Spring data jpa规范:如何通过其子对象属性筛选父对象

@Entity
public class Parent {
    @Id
    private Long id;
    
    private String name;
    
    @OneToMany(mappedBy = "parent")
    private List<Child> children;
    
    // 省略getter和setter方法
}

@Entity
public class Child {
    @Id
    private Long id;
    
    private String name;
    
    @ManyToOne
    @JoinColumn(name = "parent_id")
    private Parent parent;
    
    // 省略getter和setter方法
}

public interface ParentRepository extends JpaRepository<Parent, Long> {
    List<Parent> findByChildrenName(String childName);
}

@Service
public class ParentService {
    @Autowired
    private ParentRepository parentRepository;
    
    public List<Parent> findByChildName(String childName) {
        return parentRepository.findByChildrenName(childName);
    }
}