public bool TryCreateObject(ObjectType objectType, out IPersistable persistObj)
        {
            switch (objectType)
            {
            case ObjectType.Aggregate:
                persistObj = new Aggregate();
                break;

            case ObjectType.AggregateRow:
                persistObj = new AggregateRow();
                break;

            case ObjectType.Avg:
                persistObj = new Avg();
                break;

            case ObjectType.BTree:
                persistObj = new BTree();
                break;

            case ObjectType.BTreeNode:
                persistObj = new BTreeNode();
                break;

            case ObjectType.BTreeNodeTupleList:
                persistObj = new BTreeNodeTupleList();
                break;

            case ObjectType.BTreeNodeTuple:
                persistObj = new BTreeNodeTuple();
                break;

            case ObjectType.BTreeNodeHierarchyObj:
                persistObj = new BTreeNodeHierarchyObj();
                break;

            case ObjectType.CalculatedFieldWrapperImpl:
                persistObj = new CalculatedFieldWrapperImpl();
                break;

            case ObjectType.ChildLeafInfo:
                persistObj = new ChildLeafInfo();
                break;

            case ObjectType.Count:
                persistObj = new Count();
                break;

            case ObjectType.CountDistinct:
                persistObj = new CountDistinct();
                break;

            case ObjectType.CountRows:
                persistObj = new CountRows();
                break;

            case ObjectType.DataAggregateObj:
                persistObj = new DataAggregateObj();
                break;

            case ObjectType.DataAggregateObjResult:
                persistObj = new DataAggregateObjResult();
                break;

            case ObjectType.DataFieldRow:
                persistObj = new DataFieldRow();
                break;

            case ObjectType.DataRegionMemberInstance:
                persistObj = new DataRegionMemberInstance();
                break;

            case ObjectType.FieldImpl:
                persistObj = new FieldImpl();
                break;

            case ObjectType.First:
                persistObj = new First();
                break;

            case ObjectType.Last:
                persistObj = new Last();
                break;

            case ObjectType.Max:
                persistObj = new Max();
                break;

            case ObjectType.Min:
                persistObj = new Min();
                break;

            case ObjectType.Previous:
                persistObj = new Previous();
                break;

            case ObjectType.RuntimeCells:
                persistObj = new RuntimeCells();
                break;

            case ObjectType.RuntimeChartCriCell:
                persistObj = new RuntimeChartCriCell();
                break;

            case ObjectType.RuntimeChartCriGroupLeafObj:
                persistObj = new RuntimeChartCriGroupLeafObj();
                break;

            case ObjectType.RuntimeChartObj:
                persistObj = new RuntimeChartObj();
                break;

            case ObjectType.RuntimeGaugePanelObj:
                persistObj = new RuntimeGaugePanelObj();
                break;

            case ObjectType.RuntimeCriObj:
                persistObj = new RuntimeCriObj();
                break;

            case ObjectType.RuntimeDataTablixGroupRootObj:
                persistObj = new RuntimeDataTablixGroupRootObj();
                break;

            case ObjectType.RuntimeDataTablixMemberObj:
                persistObj = new RuntimeDataTablixMemberObj();
                break;

            case ObjectType.RuntimeExpressionInfo:
                persistObj = new RuntimeExpressionInfo();
                break;

            case ObjectType.RuntimeHierarchyObj:
                persistObj = new RuntimeHierarchyObj();
                break;

            case ObjectType.RuntimeRICollection:
                persistObj = new RuntimeRICollection();
                break;

            case ObjectType.RuntimeSortDataHolder:
                persistObj = new RuntimeSortDataHolder();
                break;

            case ObjectType.RuntimeSortFilterEventInfo:
                persistObj = new RuntimeSortFilterEventInfo();
                break;

            case ObjectType.RuntimeSortHierarchyObj:
                persistObj = new RuntimeSortHierarchyObj();
                break;

            case ObjectType.RuntimeDataRowSortHierarchyObj:
                persistObj = new RuntimeDataRowSortHierarchyObj();
                break;

            case ObjectType.RuntimeTablixCell:
                persistObj = new RuntimeTablixCell();
                break;

            case ObjectType.RuntimeTablixGroupLeafObj:
                persistObj = new RuntimeTablixGroupLeafObj();
                break;

            case ObjectType.RuntimeTablixObj:
                persistObj = new RuntimeTablixObj();
                break;

            case ObjectType.RuntimeUserSortTargetInfo:
                persistObj = new RuntimeUserSortTargetInfo();
                break;

            case ObjectType.ScopeLookupTable:
                persistObj = new ScopeLookupTable();
                break;

            case ObjectType.SortExpressionScopeInstanceHolder:
                persistObj = new RuntimeSortFilterEventInfo.SortExpressionScopeInstanceHolder();
                break;

            case ObjectType.SortFilterExpressionScopeObj:
                persistObj = new RuntimeSortFilterEventInfo.SortFilterExpressionScopeObj();
                break;

            case ObjectType.SortHierarchyStruct:
                persistObj = new RuntimeSortHierarchyObj.SortHierarchyStructure();
                break;

            case ObjectType.SortScopeValuesHolder:
                persistObj = new RuntimeSortFilterEventInfo.SortScopeValuesHolder();
                break;

            case ObjectType.StDev:
                persistObj = new StDev();
                break;

            case ObjectType.StDevP:
                persistObj = new StDevP();
                break;

            case ObjectType.StorageItem:
                persistObj = new StorageItem();
                break;

            case ObjectType.Sum:
                persistObj = new Sum();
                break;

            case ObjectType.Var:
                persistObj = new Var();
                break;

            case ObjectType.VarP:
                persistObj = new VarP();
                break;

            case ObjectType.FilterKey:
                persistObj = new Filters.FilterKey();
                break;

            case ObjectType.LookupMatches:
                persistObj = new LookupMatches();
                break;

            case ObjectType.LookupMatchesWithRows:
                persistObj = new LookupMatchesWithRows();
                break;

            case ObjectType.LookupTable:
                persistObj = new LookupTable();
                break;

            case ObjectType.Union:
                persistObj = new Union();
                break;

            case ObjectType.RuntimeMapDataRegionObj:
                persistObj = new RuntimeMapDataRegionObj();
                break;

            case ObjectType.DataScopeInfo:
                persistObj = new DataScopeInfo();
                break;

            case ObjectType.BucketedDataAggregateObjs:
                persistObj = new BucketedDataAggregateObjs();
                break;

            case ObjectType.DataAggregateObjBucket:
                persistObj = new DataAggregateObjBucket();
                break;

            case ObjectType.RuntimeGroupingObjHash:
                persistObj = new RuntimeGroupingObjHash();
                break;

            case ObjectType.RuntimeGroupingObjTree:
                persistObj = new RuntimeGroupingObjTree();
                break;

            case ObjectType.RuntimeGroupingObjDetail:
                persistObj = new RuntimeGroupingObjDetail();
                break;

            case ObjectType.RuntimeGroupingObjDetailUserSort:
                persistObj = new RuntimeGroupingObjDetailUserSort();
                break;

            case ObjectType.RuntimeGroupingObjLinkedList:
                persistObj = new RuntimeGroupingObjLinkedList();
                break;

            case ObjectType.RuntimeGroupingObjNaturalGroup:
                persistObj = new RuntimeGroupingObjNaturalGroup();
                break;

            default:
                persistObj = null;
                return(false);
            }
            return(true);
        }