自联接条件查询

Question

我有以下选择查询，对于第二个左连接中的此查询，我正在使用相同列的同一个表进行自联接。我希望同一个查询位于条件查询中。 我已将以下查询转换为条件查询但我收到以下错误

  

无法在此ManagedType上找到具有给定名称[org.hibernate.jpa.internal.metamodel.SingularAttributeImpl@1b3142f]的属性[com.glenwood.glaceemr.server.application.models.ProblemHistory] ​​

select * from problem_report 
left join  problem_history a on problem_report_uniqueid=a.problem_history_problem_uniqueid  
**left join problem_history b ON a.problem_history_problem_uniqueid = b.problem_history_problem_uniqueid**

在Spring Entity类中我做了spring

@Entity
@Table(name = "problem_history")
public class ProblemHistory implements Serializable{
     @Id
     @GeneratedValue(strategy = GenerationType.SEQUENCE, 
     generator="problem_history_id_seq")
     @SequenceGenerator(name ="problem_history_id_seq", 
     sequenceName="problem_history_id_seq", allocationSize=1)
     @Column(name="problem_history_id")
     private Integer problemHistoryId;
    enter code here

     @Column(name="problem_history_problem_uniqueid")
    private Integer problemHistoryProblemUniqueid;

    @ManyToOne
    @JsonManagedReference

@JoinColumn(name="problem_history_problem_uniqueid",referencedColumnName="problem_history_problem_uniqueid",insertable=false, updatable=false)
    private ProblemHistory problemhistoryRef;

在服务实施

中

CriteriaBuilder builder = em.getCriteriaBuilder();
            CriteriaQuery<Object> cq = builder.createQuery();
            Root<ProblemReport> root = cq.from(ProblemReport.class);
            //Root<ProblemHistory> root1 = cq.from(ProblemHistory.class);

            Join<ProblemReport,ProblemDataCheck> pblmDataCheckJoin=root.join("pbldatacheck",JoinType.LEFT);
            Join<ProblemReport,ProblemHistory> pblmReportHistoryJoin=root.join(ProblemReport_.problemHistory,JoinType.LEFT);
            Join<ProblemHistory,ProblemHistory> pblmhstryJoin=pblmReportHistoryJoin.join("problemhistoryRef",JoinType.LEFT);

让我知道无论如何都要在上面的条件查询中执行自我加入。