@ManyToMany与复合键和额外列的关系，中间表中的嵌套列

Question

这是我目前的情况： 我有diagram这样的话。在中间表中，我还有1个额外的列。这里的问题在表“Period_Area_CC”中，列“Area_CompNo”由2列引用（表“CC”中的“CompNo”和来自tablle“Period_Area”的“Area_CompNo”）

这是我的映射

public class Area extends BaseEntity {

    @EmbeddedId
    private AreaId id;

    @OneToMany(mappedBy = "area", cascade = CascadeType.ALL, orphanRemoval = true)
    private List<AreaPeriod> areaPeriods;
}

public class AreaPeriod implements Serializable {

    @Id
    @Column(name = "periodAssignmentID")
    private Long periodID;
    @Id
    @Column(name = "areaID")
    private Long areaID;
    @Id
    @Column(name = "companyNo")
    private Long companyNo;

    private Long parentId;

    @Column(name = "hierarchyPath")
    private String hierarchyPath;

    @ManyToOne
    @JoinColumns({@JoinColumn(name = "areaID", referencedColumnName = "areaID", updatable = false, insertable = false),
            @JoinColumn(name = "companyNo", referencedColumnName = "companyNo", updatable = false, insertable = false)})
    private Area area;

    @ManyToOne
    @JoinColumns({@JoinColumn(name = "periodAssignmentID", referencedColumnName = "periodAssignmentID", updatable = false, insertable = false)})
    private VirtualAreaPeriodDefinition period;

    @OneToMany(mappedBy = "parent", cascade = CascadeType.ALL)
    private Set<AreaPeriod> children;

    @ManyToOne
    @JoinColumns({@JoinColumn(name = "periodAssignmentID", referencedColumnName = "periodAssignmentID", insertable = false, updatable = false),
            @JoinColumn(name = "parentId", referencedColumnName = "areaID", insertable = false, updatable = false),
            @JoinColumn(name = "companyNo", referencedColumnName = "companyNo", insertable = false, updatable = false)})
    private AreaPeriod parent;

    @OneToMany(mappedBy = "areaPeriod", cascade = CascadeType.ALL, orphanRemoval = true)
    private List<CostCenterAreaPeriod> costCenterAreaPeriods;
}
public class CostCenterAreaPeriod implements Serializable {

    @Id
    @Column(name = "companyNo")
    private Long companyNo;

    @Id
    @Column(name = "periodAssignmentID")
    private Long periodId;

    @Id
    @Column(name = "areaID")
    private Long areaId;

    @Id
    @Column(name = "CostCenterEnum")
    private Long costCenterEnum;

    private String hierarchyPath;

    @ManyToOne
    @JoinColumns({@JoinColumn(name = "areaID", referencedColumnName = "areaID", updatable = false, insertable = false),
            @JoinColumn(name = "companyNo", referencedColumnName = "companyNo", updatable = false, insertable = false),
            @JoinColumn(name = "periodAssignmentID", referencedColumnName = "periodAssignmentID", updatable = false, insertable = false)})
    private AreaPeriod areaPeriod;

    @ManyToOne
    @JoinColumns({@JoinColumn(name = "CompanyNo", referencedColumnName = "companyNo", updatable = false, insertable = false),
            @JoinColumn(name = "CostCenterEnum", referencedColumnName = "CostCenterEnum", updatable = false, insertable = false)})
    private CostCenter costCenter;
}
public class CostCenter extends BaseEntity {

    private static final long serialVersionUID = -2290076530189347245L;

    @EmbeddedId
    private CXCostCenterPK id;

    @OneToMany(mappedBy = "costCenter", cascade = CascadeType.ALL, orphanRemoval = true)
    private List<CostCenterAreaPeriod> costCenterAreaPeriods;
}

因为我已经标记了与insertable和updateable false的关系所以我必须手动插入。 那么有没有更好的解决方案，所以我只需要在实体上映射关系，然后JPA将处理插入/更新/删除功能？

更新：

public class CXCostCenterPK implements Serializable {

    private static final long serialVersionUID = 658550094878047277L;

    @Column(name = "CompanyNo")
    private Long companyNo;

    @Column(name = "CostCenterEnum")
    private Long costCenterEnum;
}
public class AreaId implements Serializable {

    @Column(name = "companyNo", length = 5, nullable = false)
    private Long companyNo;

    @Column(name = "areaID", length = 11, nullable = false)
    private Long areaEnum;
}