这些是我的课程：

@Entity
@Table(name="assessment")
public class AssesmentProperties {

  @Id
  @Column(name="AssessmentId")
  @GeneratedValue(strategy=GenerationType.IDENTITY)
  private Long AssessmentId;

  @Column(unique=true,nullable=false)
  private String AssessmentName;

  private String AssessmentLevel;
  private String  Specialization;
  private int time;
  private String keywords;
  private int NoOfSections;

  //getters and setters
}

@Embeddable
public class SettingsPrimary implements Serializable {

  private Long AssessmentId;

  @GeneratedValue(strategy=GenerationType.IDENTITY)
  private Long Section;

 //getters and setters
}

@Entity
@Table(name="section")
public class SectionProperties {

  @EmbeddedId
  private SettingsPrimary PrimaryKey;

  private String SectionType;
  private int Weightage;
  private int time;
  private int NoOfQuestions;

  //getters and setters
}

在table上 section 我需要创造 assessment_id 作为fk收件人 assessment 表并在删除时设置cascade。我试过用不同的方法做，但没有成功。