Uses of Class
org.apache.druid.segment.column.RowSignature

Packages that use RowSignature

Package	Description
org.apache.druid.frame.key
org.apache.druid.frame.read
org.apache.druid.frame.segment
org.apache.druid.frame.segment.columnar
org.apache.druid.frame.segment.row
org.apache.druid.frame.write
org.apache.druid.frame.write.columnar
org.apache.druid.query
org.apache.druid.query.groupby
org.apache.druid.query.scan
org.apache.druid.query.timeboundary
org.apache.druid.query.timeseries
org.apache.druid.query.topn
org.apache.druid.segment
org.apache.druid.segment.column
org.apache.druid.segment.join.table

Uses of RowSignature in org.apache.druid.frame.key

Methods in org.apache.druid.frame.key with parameters of type RowSignature

Modifier and Type	Method and Description
static RowKeyReader	RowKeyReader.create(RowSignature signature) Creates a new RowKeyReader.

Uses of RowSignature in org.apache.druid.frame.read

Methods in org.apache.druid.frame.read that return RowSignature

Modifier and Type	Method and Description
RowSignature	FrameReader.signature()

Methods in org.apache.druid.frame.read with parameters of type RowSignature

Modifier and Type	Method and Description
static FrameReader	FrameReader.create(RowSignature signature) Create a reader for frames with a given RowSignature.
static Supplier<MemoryRange<org.apache.datasketches.memory.Memory>>	FrameReaderUtils.makeRowMemorySupplier(ColumnSelectorFactory columnSelectorFactory, RowSignature expectedSignature) Returns a direct row memory supplier if FrameReaderUtils.mayBeAbleToSelectRowMemory(org.apache.druid.segment.ColumnSelectorFactory), otherwise returns null.

Uses of RowSignature in org.apache.druid.frame.segment

Methods in org.apache.druid.frame.segment that return RowSignature

Modifier and Type	Method and Description
RowSignature	FrameStorageAdapter.getRowSignature()

Uses of RowSignature in org.apache.druid.frame.segment.columnar

Constructors in org.apache.druid.frame.segment.columnar with parameters of type RowSignature

Constructor and Description
FrameCursorFactory(Frame frame, RowSignature signature, List<FrameColumnReader> columnReaders)

Uses of RowSignature in org.apache.druid.frame.segment.row

Constructors in org.apache.druid.frame.segment.row with parameters of type RowSignature

Constructor and Description
FrameColumnSelectorFactory(Frame frame, RowSignature frameSignature, List<FieldReader> fieldReaders, ReadableFrameRowPointer rowPointer)

Uses of RowSignature in org.apache.druid.frame.write

Methods in org.apache.druid.frame.write that return RowSignature

Modifier and Type	Method and Description
static RowSignature	FrameWriters.sortableSignature(RowSignature signature, List<SortColumn> sortColumns) Returns a copy of "signature" with columns rearranged so the provided sortColumns appear as a prefix.

Methods in org.apache.druid.frame.write with parameters of type RowSignature

Modifier and Type	Method and Description
static Set<String>	FrameWriterUtils.findDisallowedFieldNames(RowSignature signature) Checks the provided signature for any disallowed field names.
static FrameWriterFactory	FrameWriters.makeFrameWriterFactory(FrameType frameType, MemoryAllocator allocator, RowSignature signature, List<SortColumn> sortColumns) Creates a FrameWriterFactory that produces frames of the given FrameType.
static RowSignature	FrameWriters.sortableSignature(RowSignature signature, List<SortColumn> sortColumns) Returns a copy of "signature" with columns rearranged so the provided sortColumns appear as a prefix.
static void	FrameWriterUtils.verifySortColumns(List<SortColumn> sortColumns, RowSignature signature) Verifies whether the provided sortColumns are all sortable, and are a prefix of the signature.

Constructors in org.apache.druid.frame.write with parameters of type RowSignature

Constructor and Description
RowBasedFrameWriter(RowSignature signature, List<SortColumn> sortColumns, List<FieldWriter> fieldWriters, Supplier<MemoryRange<org.apache.datasketches.memory.Memory>> rowMemorySupplier, AppendableMemory rowOrderMemory, AppendableMemory rowOffsetMemory, AppendableMemory dataMemory)
RowBasedFrameWriterFactory(MemoryAllocator allocator, RowSignature signature, List<SortColumn> sortColumns)

Uses of RowSignature in org.apache.druid.frame.write.columnar

Constructors in org.apache.druid.frame.write.columnar with parameters of type RowSignature

Constructor and Description
ColumnarFrameWriter(RowSignature signature, List<SortColumn> sortColumns, AppendableMemory rowOrderMemory, List<FrameColumnWriter> columnWriters)
ColumnarFrameWriterFactory(MemoryAllocator allocator, RowSignature signature, List<SortColumn> sortColumns) Create a ColumnarFrameWriterFactory.

Uses of RowSignature in org.apache.druid.query

Methods in org.apache.druid.query that return RowSignature

Modifier and Type	Method and Description
RowSignature	InlineDataSource.getRowSignature() Returns the row signature (map of column name to type) for this inline datasource.
RowSignature	QueryToolChest.resultArraySignature(QueryType query) Returns a RowSignature for the arrays returned by QueryToolChest.resultsAsArrays(QueryType, org.apache.druid.java.util.common.guava.Sequence<ResultType>).

Methods in org.apache.druid.query with parameters of type RowSignature

Modifier and Type	Method and Description
static InlineDataSource	InlineDataSource.fromIterable(Iterable<Object[]> rows, RowSignature signature) Creates an inline datasource from an Iterable.

Uses of RowSignature in org.apache.druid.query.groupby

Methods in org.apache.druid.query.groupby that return RowSignature

Modifier and Type	Method and Description
RowSignature	GroupByQuery.getResultRowSignature() Equivalent to getResultRowSignature(Finalization.UNKNOWN).
RowSignature	GroupByQuery.getResultRowSignature(RowSignature.Finalization finalization) Returns a result row signature, of the same size as GroupByQuery.getResultRowSizeWithPostAggregators(), in the order that they will appear in ResultRows for this query.
RowSignature	GroupByQueryQueryToolChest.resultArraySignature(GroupByQuery query)

Uses of RowSignature in org.apache.druid.query.scan

Methods in org.apache.druid.query.scan that return RowSignature

Modifier and Type	Method and Description
RowSignature	ScanQueryQueryToolChest.resultArraySignature(ScanQuery query)

Uses of RowSignature in org.apache.druid.query.timeboundary

Methods in org.apache.druid.query.timeboundary that return RowSignature

Modifier and Type	Method and Description
RowSignature	TimeBoundaryQueryQueryToolChest.resultArraySignature(TimeBoundaryQuery query)

Uses of RowSignature in org.apache.druid.query.timeseries

Methods in org.apache.druid.query.timeseries that return RowSignature

Modifier and Type	Method and Description
RowSignature	TimeseriesQueryQueryToolChest.resultArraySignature(TimeseriesQuery query)

Uses of RowSignature in org.apache.druid.query.topn

Methods in org.apache.druid.query.topn that return RowSignature

Modifier and Type	Method and Description
RowSignature	TopNQueryQueryToolChest.resultArraySignature(TopNQuery query)

Uses of RowSignature in org.apache.druid.segment

Methods in org.apache.druid.segment that return RowSignature

Modifier and Type	Method and Description
default RowSignature	StorageAdapter.getRowSignature() Returns the row signature of the data available from this adapter.
RowSignature	RowBasedStorageAdapter.getRowSignature()

Constructors in org.apache.druid.segment with parameters of type RowSignature

Constructor and Description
RowBasedSegment(SegmentId segmentId, Sequence<RowType> rowSequence, RowAdapter<RowType> rowAdapter, RowSignature rowSignature) Create a row-based segment.

Uses of RowSignature in org.apache.druid.segment.column

Methods in org.apache.druid.segment.column that return RowSignature

Modifier and Type	Method and Description
RowSignature	RowSignature.Builder.build()
static RowSignature	RowSignature.empty()

Methods in org.apache.druid.segment.column with parameters of type RowSignature

Modifier and Type	Method and Description
RowSignature.Builder	RowSignature.Builder.addAll(RowSignature other)

Uses of RowSignature in org.apache.druid.segment.join.table

Methods in org.apache.druid.segment.join.table that return RowSignature

Modifier and Type	Method and Description
RowSignature	ReferenceCountingIndexedTable.rowSignature()
RowSignature	BroadcastSegmentIndexedTable.rowSignature()
RowSignature	IndexedTable.rowSignature() Returns the signature of this table, which includes all key columns (as well as other columns that can be selected, but are not keys).
RowSignature	RowBasedIndexedTable.rowSignature()

Constructors in org.apache.druid.segment.join.table with parameters of type RowSignature

Constructor and Description
RowBasedIndexedTable(List<RowType> table, RowAdapter<RowType> rowAdapter, RowSignature rowSignature, Set<String> keyColumns, String version)
RowBasedIndexedTable(List<RowType> table, RowAdapter<RowType> rowAdapter, RowSignature rowSignature, Set<String> keyColumns, String version, byte[] cacheKey)