Class TRawObjectsDataProvider

catboost/libs/data/objects.h:409–529

    };

    class TRawObjectsDataProvider : public TObjectsDataProvider {
    public:
        using TData = TRawObjectsData;

    public:
        TRawObjectsDataProvider(
            TMaybe<TObjectsGroupingPtr> objectsGrouping, // if not defined - init from groupId
            TCommonObjectsData&& commonData,
            TRawObjectsData&& data,

            bool skipCheck,

            // needed for check parallelization, can pass Nothing() if skipCheck is true
            TMaybe<NPar::ILocalExecutor*> localExecutor
        )
            : TObjectsDataProvider(std::move(objectsGrouping), std::move(commonData), skipCheck)
        {
            if (!skipCheck) {
                data.Check(
                    GetObjectCount(),
                    *GetFeaturesLayout(),
                    CommonData.CatFeaturesHashToString.Get(),
                    *localExecutor
                );
            }
            Data = std::move(data);
        }

        bool EqualTo(
            const TObjectsDataProvider& rhs,
            bool ignoreSparsity = false,
            bool ignoreCatFeaturesHashToString = false
        ) const override {
            const auto* rhsRawObjectsData = dynamic_cast<const TRawObjectsDataProvider*>(&rhs);
            if (!rhsRawObjectsData) {
                return false;
            }
            return TObjectsDataProvider::EqualTo(rhs, ignoreSparsity, ignoreCatFeaturesHashToString)
                && (Data == rhsRawObjectsData->Data);
        }

        TObjectsDataProviderPtr GetSubsetImpl(
            const TObjectsGroupingSubset& objectsGroupingSubset,
            TMaybe<TConstArrayRef<ui32>> ignoredFeatures,
            ui64 cpuRamLimit,
            NPar::ILocalExecutor* localExecutor
        ) const override;

        bool HasDenseData() const override;
        bool HasSparseData() const override;


        // needed for low-level optimizations in CPU applying code
        const TFeaturesArraySubsetIndexing& GetFeaturesArraySubsetIndexing() const {
            return *CommonData.SubsetIndexing;
        }

        /* can return nullptr if this feature is unavailable