ILinearizeComparatorFactory linearizeCmpFactory = MetadataProvider.proposeLinearizer(keyType, secondaryComparatorFactories.length); ITypeTraits[] typeTraits = getTypeTraits(mdProvider, dataset, index, recordType, metaType); IBinaryComparatorFactory[] rtreeCmpFactories = getCmpFactories(mdProvider, index, recordType, metaType); int[] secondaryFilterFields = (filterTypeTraits != null && filterTypeTraits.length > 0)