Uses of Interface
org.apache.druid.segment.ColumnValueSelector

Packages that use ColumnValueSelector

Package	Description
org.apache.druid.frame.field
org.apache.druid.frame.processor
org.apache.druid.frame.read.columnar
org.apache.druid.frame.segment.row
org.apache.druid.frame.util
org.apache.druid.frame.write.cast
org.apache.druid.frame.write.columnar
org.apache.druid.query
org.apache.druid.query.aggregation
org.apache.druid.query.aggregation.cardinality
org.apache.druid.query.aggregation.cardinality.types
org.apache.druid.query.aggregation.firstlast.first
org.apache.druid.query.aggregation.firstlast.last
org.apache.druid.query.aggregation.mean
org.apache.druid.query.dimension
org.apache.druid.query.groupby.epinephelinae
org.apache.druid.query.groupby.epinephelinae.column
org.apache.druid.query.rowsandcols.semantic
org.apache.druid.query.scan
org.apache.druid.query.topn
org.apache.druid.query.topn.types
org.apache.druid.segment
org.apache.druid.segment.column
org.apache.druid.segment.data
org.apache.druid.segment.historical
org.apache.druid.segment.incremental
org.apache.druid.segment.join
org.apache.druid.segment.join.filter
org.apache.druid.segment.join.lookup
org.apache.druid.segment.join.table
org.apache.druid.segment.nested
org.apache.druid.segment.projections
org.apache.druid.segment.selector.settable
org.apache.druid.segment.serde
org.apache.druid.segment.shim
org.apache.druid.segment.virtual

Uses of ColumnValueSelector in org.apache.druid.frame.field

Classes in org.apache.druid.frame.field that implement ColumnValueSelector

Modifier and Type	Class	Description
class	NumericArrayFieldSelector<ElementType extends Number>	Base implementation of the column value selector that the concrete numeric field reader implementations inherit from.

Methods in org.apache.druid.frame.field that return ColumnValueSelector

Modifier and Type	Method	Description
ColumnValueSelector<?>	DoubleFieldReader.getColumnValueSelector(org.apache.datasketches.memory.Memory memory, ReadableFieldPointer fieldPointer, byte nullIndicatorByte)
ColumnValueSelector<?>	FloatFieldReader.getColumnValueSelector(org.apache.datasketches.memory.Memory memory, ReadableFieldPointer fieldPointer, byte nullIndicatorByte)
ColumnValueSelector<?>	LongFieldReader.getColumnValueSelector(org.apache.datasketches.memory.Memory memory, ReadableFieldPointer fieldPointer, byte nullIndicatorByte)
abstract ColumnValueSelector<?>	NumericFieldReader.getColumnValueSelector(org.apache.datasketches.memory.Memory memory, ReadableFieldPointer fieldPointer, byte nullIndicatorByte)	Creates a column value selector for the element written at fieldPointer's position in the memory.
ColumnValueSelector<?>	ComplexFieldReader.makeColumnValueSelector(org.apache.datasketches.memory.Memory memory, ReadableFieldPointer fieldPointer)
ColumnValueSelector<?>	DoubleArrayFieldReader.makeColumnValueSelector(org.apache.datasketches.memory.Memory memory, ReadableFieldPointer fieldPointer)
ColumnValueSelector<?>	FieldReader.makeColumnValueSelector(org.apache.datasketches.memory.Memory memory, ReadableFieldPointer fieldPointer)	Create a ColumnValueSelector backed by some memory and a moveable pointer.
ColumnValueSelector<?>	FloatArrayFieldReader.makeColumnValueSelector(org.apache.datasketches.memory.Memory memory, ReadableFieldPointer fieldPointer)
ColumnValueSelector<?>	LongArrayFieldReader.makeColumnValueSelector(org.apache.datasketches.memory.Memory memory, ReadableFieldPointer fieldPointer)
ColumnValueSelector<?>	NumericFieldReader.makeColumnValueSelector(org.apache.datasketches.memory.Memory memory, ReadableFieldPointer fieldPointer)
ColumnValueSelector<?>	StringFieldReader.makeColumnValueSelector(org.apache.datasketches.memory.Memory memory, ReadableFieldPointer fieldPointer)

Methods in org.apache.druid.frame.field with parameters of type ColumnValueSelector

Modifier and Type	Method	Description
NumericFieldWriter	NumericFieldWriterFactory.get(ColumnValueSelector<Number> selector)	Constructs an instance of NumericFieldWriter given the column selector
static NumericArrayFieldWriter	NumericArrayFieldWriter.getDoubleArrayFieldWriter(ColumnValueSelector selector, FrameType frameType)	Returns the writer for ARRAY
static NumericArrayFieldWriter	NumericArrayFieldWriter.getFloatArrayFieldWriter(ColumnValueSelector selector, FrameType frameType)	Returns the writer for ARRAY
static NumericArrayFieldWriter	NumericArrayFieldWriter.getLongArrayFieldWriter(ColumnValueSelector selector)	Returns the writer for ARRAY

Constructors in org.apache.druid.frame.field with parameters of type ColumnValueSelector

Modifier	Constructor	Description
	NumericArrayFieldWriter(ColumnValueSelector selector, NumericFieldWriterFactory writerFactory)

Uses of ColumnValueSelector in org.apache.druid.frame.processor

Classes in org.apache.druid.frame.processor that implement ColumnValueSelector

Modifier and Type	Class	Description
class	TrackingColumnValueSelector	ColumnValueSelector that delegates to a selector obtained from a ColumnSelectorFactory supplier.
class	TrackingDimensionSelector	DimensionSelector that delegates to a selector obtained from a ColumnSelectorFactory supplier.

Methods in org.apache.druid.frame.processor that return ColumnValueSelector

Modifier and Type	Method	Description
ColumnValueSelector	MultiColumnSelectorFactory.makeColumnValueSelector(String columnName)

Uses of ColumnValueSelector in org.apache.druid.frame.read.columnar

Methods in org.apache.druid.frame.read.columnar that return ColumnValueSelector

Modifier and Type	Method	Description
ColumnValueSelector<?>	NumericArrayFrameColumnReader.NumericArrayFrameColumn.makeColumnValueSelector(ReadableOffset offset)

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

Methods in org.apache.druid.frame.segment.row that return ColumnValueSelector

Modifier and Type	Method	Description
ColumnValueSelector	FrameColumnSelectorFactory.makeColumnValueSelector(String columnName)

Uses of ColumnValueSelector in org.apache.druid.frame.util

Methods in org.apache.druid.frame.util that return ColumnValueSelector

Modifier and Type	Method	Description
ColumnValueSelector<?>	SettableLongVirtualColumn.makeColumnValueSelector(String columnName, ColumnSelectorFactory factory)

Uses of ColumnValueSelector in org.apache.druid.frame.write.cast

Classes in org.apache.druid.frame.write.cast that implement ColumnValueSelector

Modifier and Type	Class	Description
class	ObjectToArrayColumnValueSelector	Wraps a ColumnValueSelector, calls BaseObjectColumnValueSelector.getObject(), interprets that value using ExprEval.ofType(org.apache.druid.math.expr.ExpressionType, java.lang.Object), and casts it using ExprEval.castTo(org.apache.druid.math.expr.ExpressionType).
class	ObjectToNumberColumnValueSelector	Wraps a ColumnValueSelector, calls BaseObjectColumnValueSelector.getObject() and provides primitive numeric accessors based on that object value.

Methods in org.apache.druid.frame.write.cast that return ColumnValueSelector

Modifier and Type	Method	Description
static ColumnValueSelector<?>	TypeCastSelectors.makeColumnValueSelector(ColumnSelectorFactory columnSelectorFactory, String column, ColumnType desiredType)	Create a ColumnValueSelector that does its own typecasting if necessary.
static ColumnValueSelector<?>	TypeCastSelectors.wrapColumnValueSelectorIfNeeded(ColumnValueSelector<?> selector, ColumnCapabilities selectorCapabilities, RowIdSupplier rowIdSupplier, ColumnType desiredType)	Wraps a ColumnValueSelector with a type casting selector if necessary.

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

Modifier and Type	Method	Description
static ColumnValueSelector<?>	TypeCastSelectors.wrapColumnValueSelectorIfNeeded(ColumnValueSelector<?> selector, ColumnCapabilities selectorCapabilities, RowIdSupplier rowIdSupplier, ColumnType desiredType)	Wraps a ColumnValueSelector with a type casting selector if necessary.

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

Modifier	Constructor	Description
	ObjectToArrayColumnValueSelector(ColumnValueSelector<?> selector, ExpressionType desiredType, RowIdSupplier rowIdSupplier)

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

Classes in org.apache.druid.frame.write.columnar with type parameters of type ColumnValueSelector

Modifier and Type	Class	Description
class	StringFrameColumnWriter<T extends ColumnValueSelector>

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

Modifier	Constructor	Description
	DoubleArrayFrameColumnWriter(ColumnValueSelector selector, MemoryAllocator allocator)
	FloatArrayFrameColumnWriter(ColumnValueSelector selector, MemoryAllocator allocator)
	LongArrayFrameColumnWriter(ColumnValueSelector selector, MemoryAllocator allocator)
	NumericArrayFrameColumnWriter(ColumnValueSelector selector, MemoryAllocator allocator, byte typeCode)

Uses of ColumnValueSelector in org.apache.druid.query

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

Modifier and Type	Method	Description
ColumnValueSelector	ColumnSelectorPlus.getSelector()

Constructors in org.apache.druid.query with parameters of type ColumnValueSelector

Modifier	Constructor	Description
	ColumnSelectorPlus(String columnName, String outputName, ColumnSelectorStrategyClass columnSelectorStrategy, ColumnValueSelector selector)

Uses of ColumnValueSelector in org.apache.druid.query.aggregation

Subinterfaces of ColumnValueSelector in org.apache.druid.query.aggregation

Modifier and Type	Interface	Description
interface	AggregateCombiner<T>	AggregateCombiner is used to fold rollup aggregation results from serveral "rows" of different indexes during index merging (see IndexMerger).

Classes in org.apache.druid.query.aggregation that implement ColumnValueSelector

Modifier and Type	Class	Description
class	DoubleAggregateCombiner	Specialization of AggregateCombiner for primitive double aggregations.
class	LongAggregateCombiner	Specialization of AggregateCombiner for primitive long aggregations.
final class	LongSumAggregateCombiner
final class	NullableNumericAggregateCombiner<T>	Null-aware numeric AggregateCombiner.
class	ObjectAggregateCombiner<T>	Specialization of AggregateCombiner for object aggregations.

Methods in org.apache.druid.query.aggregation that return ColumnValueSelector

Modifier and Type	Method	Description
protected ColumnValueSelector	SimpleDoubleAggregatorFactory.selector(ColumnSelectorFactory metricFactory)
protected ColumnValueSelector	SimpleFloatAggregatorFactory.selector(ColumnSelectorFactory metricFactory)
protected ColumnValueSelector	SimpleLongAggregatorFactory.selector(ColumnSelectorFactory metricFactory)

Methods in org.apache.druid.query.aggregation with parameters of type ColumnValueSelector

Modifier and Type	Method	Description
protected Aggregator	SimpleDoubleAggregatorFactory.factorize(ColumnSelectorFactory metricFactory, ColumnValueSelector selector)
protected Aggregator	SimpleFloatAggregatorFactory.factorize(ColumnSelectorFactory metricFactory, ColumnValueSelector selector)
protected Aggregator	SimpleLongAggregatorFactory.factorize(ColumnSelectorFactory metricFactory, ColumnValueSelector selector)
protected BufferAggregator	SimpleDoubleAggregatorFactory.factorizeBuffered(ColumnSelectorFactory metricFactory, ColumnValueSelector selector)
protected BufferAggregator	SimpleFloatAggregatorFactory.factorizeBuffered(ColumnSelectorFactory metricFactory, ColumnValueSelector selector)
protected BufferAggregator	SimpleLongAggregatorFactory.factorizeBuffered(ColumnSelectorFactory metricFactory, ColumnValueSelector selector)
void	AggregateCombiner.fold(ColumnValueSelector selector)	Folds this AggregateCombiner's state value with the value of the given selector and saves it in this AggregateCombiner's state, e.
void	LongSumAggregateCombiner.fold(ColumnValueSelector selector)
void	NullableNumericAggregateCombiner.fold(ColumnValueSelector selector)
void	AggregateCombiner.reset(ColumnValueSelector selector)	Resets this AggregateCombiner's state value to the value of the given selector, e.
void	LongSumAggregateCombiner.reset(ColumnValueSelector selector)
void	NullableNumericAggregateCombiner.reset(ColumnValueSelector selector)
void	AbstractSerializablePairLongObjectColumnSerializer.serialize(ColumnValueSelector<? extends T> selector)

Constructors in org.apache.druid.query.aggregation with parameters of type ColumnValueSelector

Modifier	Constructor	Description
	SingleValueAggregator(ColumnValueSelector selector)
	SingleValueBufferAggregator(ColumnValueSelector selector, ColumnType columnType)

Uses of ColumnValueSelector in org.apache.druid.query.aggregation.cardinality

Classes in org.apache.druid.query.aggregation.cardinality that implement ColumnValueSelector

Modifier and Type	Class	Description
final class	HyperLogLogCollectorAggregateCombiner

Methods in org.apache.druid.query.aggregation.cardinality with parameters of type ColumnValueSelector

Modifier and Type	Method	Description
void	HyperLogLogCollectorAggregateCombiner.fold(ColumnValueSelector selector)
void	HyperLogLogCollectorAggregateCombiner.reset(ColumnValueSelector selector)

Uses of ColumnValueSelector in org.apache.druid.query.aggregation.cardinality.types

Methods in org.apache.druid.query.aggregation.cardinality.types with parameters of type ColumnValueSelector

Modifier and Type	Method	Description
CardinalityAggregatorColumnSelectorStrategy	CardinalityAggregatorColumnSelectorStrategyFactory.makeColumnSelectorStrategy(ColumnCapabilities capabilities, ColumnValueSelector selector, String dimension)

Uses of ColumnValueSelector in org.apache.druid.query.aggregation.firstlast.first

Classes in org.apache.druid.query.aggregation.firstlast.first that implement ColumnValueSelector

Modifier and Type	Class	Description
class	GenericFirstAggregateCombiner<T extends SerializablePair<Long,?>>

Methods in org.apache.druid.query.aggregation.firstlast.first with parameters of type ColumnValueSelector

Modifier and Type	Method	Description
void	GenericFirstAggregateCombiner.fold(ColumnValueSelector selector)
void	GenericFirstAggregateCombiner.reset(ColumnValueSelector selector)

Constructors in org.apache.druid.query.aggregation.firstlast.first with parameters of type ColumnValueSelector

Modifier	Constructor	Description
	DoubleFirstAggregator(BaseLongColumnValueSelector timeSelector, ColumnValueSelector valueSelector, boolean needsFoldCheck)
	DoubleFirstBufferAggregator(BaseLongColumnValueSelector timeSelector, ColumnValueSelector valueSelector, boolean needsFoldCheck)
	FloatFirstAggregator(BaseLongColumnValueSelector timeSelector, ColumnValueSelector valueSelector, boolean needsFoldCheck)
	FloatFirstBufferAggregator(BaseLongColumnValueSelector timeSelector, ColumnValueSelector valueSelector, boolean needsFoldCheck)
	LongFirstAggregator(BaseLongColumnValueSelector timeSelector, ColumnValueSelector valueSelector, boolean needsFoldCheck)
	LongFirstBufferAggregator(BaseLongColumnValueSelector timeSelector, ColumnValueSelector valueSelector, boolean needsFoldCheck)
	NumericFirstAggregator(BaseLongColumnValueSelector timeSelector, ColumnValueSelector valueSelector, boolean needsFoldCheck)
	NumericFirstBufferAggregator(BaseLongColumnValueSelector timeSelector, ColumnValueSelector valueSelector, boolean needsFoldCheck)

Uses of ColumnValueSelector in org.apache.druid.query.aggregation.firstlast.last

Classes in org.apache.druid.query.aggregation.firstlast.last that implement ColumnValueSelector

Modifier and Type	Class	Description
class	GenericLastAggregateCombiner<T extends SerializablePair<Long,?>>

Methods in org.apache.druid.query.aggregation.firstlast.last with parameters of type ColumnValueSelector

Modifier and Type	Method	Description
void	GenericLastAggregateCombiner.fold(ColumnValueSelector selector)
void	GenericLastAggregateCombiner.reset(ColumnValueSelector selector)

Constructors in org.apache.druid.query.aggregation.firstlast.last with parameters of type ColumnValueSelector

Modifier	Constructor	Description
	DoubleLastAggregator(BaseLongColumnValueSelector timeSelector, ColumnValueSelector valueSelector, boolean needsFoldCheck)
	DoubleLastBufferAggregator(BaseLongColumnValueSelector timeSelector, ColumnValueSelector valueSelector, boolean needsFoldCheck)
	FloatLastAggregator(BaseLongColumnValueSelector timeSelector, ColumnValueSelector valueSelector, boolean needsFoldCheck)
	FloatLastBufferAggregator(BaseLongColumnValueSelector timeSelector, ColumnValueSelector valueSelector, boolean needsFoldCheck)
	LongLastAggregator(BaseLongColumnValueSelector timeSelector, ColumnValueSelector valueSelector, boolean needsFoldCheck)
	LongLastBufferAggregator(BaseLongColumnValueSelector timeSelector, ColumnValueSelector valueSelector, boolean needsFoldCheck)
	NumericLastAggregator(BaseLongColumnValueSelector timeSelector, ColumnValueSelector valueSelector, boolean needsFoldCheck)
	NumericLastBufferAggregator(BaseLongColumnValueSelector timeSelector, ColumnValueSelector valueSelector, boolean needsFoldCheck)

Uses of ColumnValueSelector in org.apache.druid.query.aggregation.mean

Constructors in org.apache.druid.query.aggregation.mean with parameters of type ColumnValueSelector

Modifier	Constructor	Description
	DoubleMeanAggregator(ColumnValueSelector selector)
	DoubleMeanBufferAggregator(ColumnValueSelector selector)

Uses of ColumnValueSelector in org.apache.druid.query.dimension

Methods in org.apache.druid.query.dimension with parameters of type ColumnValueSelector

Modifier and Type	Method	Description
ColumnSelectorStrategyClass	ColumnSelectorStrategyFactory.makeColumnSelectorStrategy(ColumnCapabilities capabilities, ColumnValueSelector selector, String dimension)

Uses of ColumnValueSelector in org.apache.druid.query.groupby.epinephelinae

Methods in org.apache.druid.query.groupby.epinephelinae with parameters of type ColumnValueSelector

Modifier and Type	Method	Description
GroupByColumnSelectorStrategy	GroupByColumnSelectorStrategyFactory.makeColumnSelectorStrategy(ColumnCapabilities capabilities, ColumnValueSelector selector, String dimension)

Uses of ColumnValueSelector in org.apache.druid.query.groupby.epinephelinae.column

Methods in org.apache.druid.query.groupby.epinephelinae.column with parameters of type ColumnValueSelector

Modifier and Type	Method	Description
int	FixedWidthGroupByColumnSelectorStrategy.initColumnValues(ColumnValueSelector selector, int columnIndex, Object[] valuess)
int	GroupByColumnSelectorStrategy.initColumnValues(ColumnValueSelector selector, int columnIndex, Object[] valuess)	Retrieve a row object from the ColumnValueSelector and put it in valuess at columnIndex.
int	KeyMappingMultiValueGroupByColumnSelectorStrategy.DictionaryBuilding.initColumnValues(ColumnValueSelector selector, int columnIndex, Object[] valuess)
int	KeyMappingMultiValueGroupByColumnSelectorStrategy.PrebuiltDictionary.initColumnValues(ColumnValueSelector selector, int columnIndex, Object[] valuess)
int	FixedWidthGroupByColumnSelectorStrategy.writeToKeyBuffer(int keyBufferPosition, ColumnValueSelector selector, ByteBuffer keyBuffer)
int	GroupByColumnSelectorStrategy.writeToKeyBuffer(int keyBufferPosition, ColumnValueSelector selector, ByteBuffer keyBuffer)	Write a single object from the given selector to the keyBuffer at keyBufferPosition.
int	KeyMappingMultiValueGroupByColumnSelectorStrategy.DictionaryBuilding.writeToKeyBuffer(int keyBufferPosition, ColumnValueSelector selector, ByteBuffer keyBuffer)
int	KeyMappingMultiValueGroupByColumnSelectorStrategy.PrebuiltDictionary.writeToKeyBuffer(int keyBufferPosition, ColumnValueSelector selector, ByteBuffer keyBuffer)

Constructor parameters in org.apache.druid.query.groupby.epinephelinae.column with type arguments of type ColumnValueSelector

Modifier	Constructor	Description
	FixedWidthGroupByColumnSelectorStrategy(int keySizeBytes, ColumnType columnType, Function<ColumnValueSelector<?>,T> valueGetter, Function<ColumnValueSelector<?>,Boolean> nullityGetter)

Uses of ColumnValueSelector in org.apache.druid.query.rowsandcols.semantic

Methods in org.apache.druid.query.rowsandcols.semantic that return ColumnValueSelector

Modifier and Type	Method	Description
ColumnValueSelector	DefaultColumnSelectorFactoryMaker.ColumnAccessorBasedColumnSelectorFactory.makeColumnValueSelector(String columnName)

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

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

Modifier and Type	Method	Description
ColumnValueSelector	SettableCursorColumnSelectorFactory.makeColumnValueSelector(String columnName)	Create ColumnValueSelector for the give column name

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

Methods in org.apache.druid.query.topn with parameters of type ColumnValueSelector

Modifier and Type	Method	Description
void	DefaultTopNQueryMetrics.columnValueSelector(ColumnValueSelector columnValueSelector)
void	TopNQueryMetrics.columnValueSelector(ColumnValueSelector columnValueSelector)	This method is called exactly once with the columnValueSelector object of each cursor, processed for the query.

Uses of ColumnValueSelector in org.apache.druid.query.topn.types

Methods in org.apache.druid.query.topn.types with parameters of type ColumnValueSelector

Modifier and Type	Method	Description
TopNColumnAggregatesProcessor<?>	TopNColumnAggregatesProcessorFactory.makeColumnSelectorStrategy(ColumnCapabilities capabilities, ColumnValueSelector selector, String dimension)

Uses of ColumnValueSelector in org.apache.druid.segment

Subinterfaces of ColumnValueSelector in org.apache.druid.segment

Modifier and Type	Interface	Description
interface	DimensionSelector	Selector for a string-typed column, either single- or multi-valued.
interface	DoubleColumnSelector	This interface is convenient for implementation of "double-sourcing" ColumnValueSelectors, it provides default implementations for all ColumnValueSelector's methods except BaseDoubleColumnValueSelector.getDouble().
interface	FloatColumnSelector	This interface is convenient for implementation of "float-sourcing" ColumnValueSelectors, it provides default implementations for all ColumnValueSelector's methods except BaseFloatColumnValueSelector.getFloat().
interface	LongColumnSelector	This interface is convenient for implementation of "long-sourcing" ColumnValueSelectors, it provides default implementations for all ColumnValueSelector's methods except BaseLongColumnValueSelector.getLong().

Classes in org.apache.druid.segment that implement ColumnValueSelector

Modifier and Type	Class	Description
class	AbstractDimensionSelector	An abstract class that provides an implementation of AbstractDimensionSelector.getObject().
class	BaseSingleValueDimensionSelector
class	ConstantDimensionSelector
class	ConstantExprEvalSelector
class	ConstantMultiValueDimensionSelector
class	DoubleWrappingDimensionSelector
class	FloatWrappingDimensionSelector
class	LongWrappingDimensionSelector
class	NilColumnValueSelector	Represents "absent" column.
class	ObjectBasedColumnSelector<T>	Object based column selector.
class	ObjectColumnSelector<T>	Restricts selector usage to only allow BaseObjectColumnValueSelector.getObject().
class	SingleScanTimeDimensionSelector	A special DimensionSelector for projected time columns - it assumes time values are scanned once and values are grouped together (i.e.

Fields in org.apache.druid.segment declared as ColumnValueSelector

Modifier and Type	Field	Description
static final ColumnValueSelector[]	ColumnValueSelector.EMPTY_ARRAY

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

Modifier and Type	Method	Description
ColumnValueSelector	AutoTypeColumnMerger.convertSortedSegmentRowValuesToMergedRowValues(int segmentIndex, ColumnValueSelector source)
ColumnValueSelector	DictionaryEncodedColumnMerger.convertSortedSegmentRowValuesToMergedRowValues(int segmentIndex, ColumnValueSelector source)
ColumnValueSelector	DimensionMerger.convertSortedSegmentRowValuesToMergedRowValues(int segmentIndex, ColumnValueSelector source)	Creates a value selector, which converts values with per-segment, _sorted order_ (see DimensionIndexer.convertUnsortedValuesToSorted(org.apache.druid.segment.ColumnValueSelector)) encoding from the given selector to their equivalent representation in the merged set of rows.
final ColumnValueSelector	NumericDimensionMergerV9.convertSortedSegmentRowValuesToMergedRowValues(int segmentIndex, ColumnValueSelector source)
ColumnValueSelector	AutoTypeColumnIndexer.convertUnsortedValuesToSorted(ColumnValueSelector selectorWithUnsortedValues)
ColumnValueSelector	DictionaryEncodedColumnIndexer.convertUnsortedValuesToSorted(ColumnValueSelector selectorWithUnsortedValues)
ColumnValueSelector	DimensionIndexer.convertUnsortedValuesToSorted(ColumnValueSelector selectorWithUnsortedValues)	Converts dictionary-encoded row values from unspecified (random) encoding order, to sorted encoding.
ColumnValueSelector	DoubleDimensionIndexer.convertUnsortedValuesToSorted(ColumnValueSelector selectorWithUnsortedValues)
ColumnValueSelector	FloatDimensionIndexer.convertUnsortedValuesToSorted(ColumnValueSelector selectorWithUnsortedValues)
ColumnValueSelector	LongDimensionIndexer.convertUnsortedValuesToSorted(ColumnValueSelector selectorWithUnsortedValues)
ColumnValueSelector<?>	AutoTypeColumnIndexer.makeColumnValueSelector(IncrementalIndexRowHolder currEntry, IncrementalIndex.DimensionDesc desc)
ColumnValueSelector	ColumnSelectorFactory.makeColumnValueSelector(String columnName)	Returns ColumnValueSelector corresponding to the given column name, or NilColumnValueSelector if the column with such name is absent.
ColumnValueSelector<?>	DictionaryEncodedColumnIndexer.makeColumnValueSelector(IncrementalIndexRowHolder currEntry, IncrementalIndex.DimensionDesc desc)
ColumnValueSelector<?>	DimensionIndexer.makeColumnValueSelector(IncrementalIndexRowHolder currEntry, IncrementalIndex.DimensionDesc desc)	Return an object used to read values from this indexer's column.
ColumnValueSelector<?>	DoubleDimensionIndexer.makeColumnValueSelector(IncrementalIndexRowHolder currEntry, IncrementalIndex.DimensionDesc desc)
ColumnValueSelector<?>	FloatDimensionIndexer.makeColumnValueSelector(IncrementalIndexRowHolder currEntry, IncrementalIndex.DimensionDesc desc)
ColumnValueSelector<?>	LongDimensionIndexer.makeColumnValueSelector(IncrementalIndexRowHolder currEntry, IncrementalIndex.DimensionDesc desc)
ColumnValueSelector<?>	QueryableIndexColumnSelectorFactory.makeColumnValueSelector(String columnName)
ColumnValueSelector	RemapColumnSelectorFactory.makeColumnValueSelector(String columnName)
ColumnValueSelector<?>	RowBasedColumnSelectorFactory.makeColumnValueSelector(String columnName)
default ColumnValueSelector<?>	VirtualColumn.makeColumnValueSelector(String columnName, ColumnSelectorFactory factory)	Deprecated. use VirtualColumn.makeColumnValueSelector(String, ColumnSelectorFactory, ColumnSelector, ReadableOffset)
default ColumnValueSelector<?>	VirtualColumn.makeColumnValueSelector(String columnName, ColumnSelectorFactory columnSelectorFactory, ColumnSelector columnSelector, ReadableOffset offset)	Builds a selector corresponding to this virtual column.
default ColumnValueSelector<?>	VirtualColumn.makeColumnValueSelector(String columnName, ColumnSelector columnSelector, ReadableOffset offset)	Deprecated. use VirtualColumn.makeColumnValueSelector(String, ColumnSelectorFactory, ColumnSelector, ReadableOffset)
ColumnValueSelector<?>	VirtualColumns.makeColumnValueSelector(String columnName, ColumnSelectorFactory selectorFactory, ColumnSelector columnSelector, ReadableOffset offset)	Create a column value selector.

Methods in org.apache.druid.segment that return types with arguments of type ColumnValueSelector

Modifier and Type	Method	Description
Comparator<ColumnValueSelector>	DimensionHandler.getEncodedValueSelectorComparator()	Returns a comparator that knows how to compare ColumnValueSelector of the assumed dimension type, corresponding to this DimensionHandler.
Comparator<ColumnValueSelector>	DoubleDimensionHandler.getEncodedValueSelectorComparator()
Comparator<ColumnValueSelector>	FloatDimensionHandler.getEncodedValueSelectorComparator()
Comparator<ColumnValueSelector>	LongDimensionHandler.getEncodedValueSelectorComparator()
Comparator<ColumnValueSelector>	NestedCommonFormatColumnHandler.getEncodedValueSelectorComparator()
Comparator<ColumnValueSelector>	StringDimensionHandler.getEncodedValueSelectorComparator()

Methods in org.apache.druid.segment with parameters of type ColumnValueSelector

Modifier and Type	Method	Description
ColumnValueSelector	AutoTypeColumnMerger.convertSortedSegmentRowValuesToMergedRowValues(int segmentIndex, ColumnValueSelector source)
ColumnValueSelector	DictionaryEncodedColumnMerger.convertSortedSegmentRowValuesToMergedRowValues(int segmentIndex, ColumnValueSelector source)
ColumnValueSelector	DimensionMerger.convertSortedSegmentRowValuesToMergedRowValues(int segmentIndex, ColumnValueSelector source)	Creates a value selector, which converts values with per-segment, _sorted order_ (see DimensionIndexer.convertUnsortedValuesToSorted(org.apache.druid.segment.ColumnValueSelector)) encoding from the given selector to their equivalent representation in the merged set of rows.
final ColumnValueSelector	NumericDimensionMergerV9.convertSortedSegmentRowValuesToMergedRowValues(int segmentIndex, ColumnValueSelector source)
ColumnValueSelector	AutoTypeColumnIndexer.convertUnsortedValuesToSorted(ColumnValueSelector selectorWithUnsortedValues)
ColumnValueSelector	DictionaryEncodedColumnIndexer.convertUnsortedValuesToSorted(ColumnValueSelector selectorWithUnsortedValues)
ColumnValueSelector	DimensionIndexer.convertUnsortedValuesToSorted(ColumnValueSelector selectorWithUnsortedValues)	Converts dictionary-encoded row values from unspecified (random) encoding order, to sorted encoding.
ColumnValueSelector	DoubleDimensionIndexer.convertUnsortedValuesToSorted(ColumnValueSelector selectorWithUnsortedValues)
ColumnValueSelector	FloatDimensionIndexer.convertUnsortedValuesToSorted(ColumnValueSelector selectorWithUnsortedValues)
ColumnValueSelector	LongDimensionIndexer.convertUnsortedValuesToSorted(ColumnValueSelector selectorWithUnsortedValues)
static TransformableRowIterator	IndexMerger.makeRowIteratorWithConvertedDimensionColumns(TransformableRowIterator sourceRowIterator, ColumnValueSelector[] convertedDimensionSelectors, ColumnValueSelector[] convertedMarkedDimensionSelectors)
void	AutoTypeColumnMerger.processMergedRow(ColumnValueSelector selector)
void	DictionaryEncodedColumnMerger.processMergedRow(ColumnValueSelector selector)
void	DimensionMerger.processMergedRow(ColumnValueSelector selector)	Process a column value(s) (potentially multi-value) of a row from the given selector and update the DimensionMerger's internal state.
final void	NumericDimensionMergerV9.processMergedRow(ColumnValueSelector selector)
void	DoubleColumnSerializer.serialize(ColumnValueSelector<?> selector)
void	DoubleColumnSerializerV2.serialize(ColumnValueSelector<?> selector)
void	FloatColumnSerializer.serialize(ColumnValueSelector<?> selector)
void	FloatColumnSerializerV2.serialize(ColumnValueSelector<?> selector)
void	GenericColumnSerializer.serialize(ColumnValueSelector<? extends T> selector)
void	LongColumnSerializer.serialize(ColumnValueSelector<?> selector)
void	LongColumnSerializerV2.serialize(ColumnValueSelector<?> selector)

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

Modifier	Constructor	Description
	RowPointer(ColumnValueSelector timestampSelector, int timePosition, ColumnValueSelector[] dimensionSelectors, List<DimensionHandler> dimensionHandlers, ColumnValueSelector[] metricSelectors, List<String> metricNames, IntSupplier rowNumPointer)

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

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

Modifier and Type	Method	Description
ColumnValueSelector<?>	BaseColumn.makeColumnValueSelector(ReadableOffset offset)
default ColumnValueSelector<?>	ComplexColumn.makeColumnValueSelector(ReadableOffset offset)	Optionally overridden when complex column serialization is not based on default serialization based on GenericIndexed in ComplexColumnSerializer.
default ColumnValueSelector<?>	DictionaryEncodedColumn.makeColumnValueSelector(ReadableOffset offset)
ColumnValueSelector<?>	DoublesColumn.makeColumnValueSelector(ReadableOffset offset)
ColumnValueSelector<?>	FloatsColumn.makeColumnValueSelector(ReadableOffset offset)
ColumnValueSelector<?>	LongsColumn.makeColumnValueSelector(ReadableOffset offset)
ColumnValueSelector<?>	UnknownTypeComplexColumn.makeColumnValueSelector(ReadableOffset offset)

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

Modifier and Type	Method	Description
static DimensionSelector	ValueTypes.makeNumericWrappingDimensionSelector(ValueType valueType, ColumnValueSelector<?> numericColumnValueSelector, ExtractionFn extractionFn)

Uses of ColumnValueSelector in org.apache.druid.segment.data

Methods in org.apache.druid.segment.data that return ColumnValueSelector

Modifier and Type	Method	Description
default ColumnValueSelector<Double>	ColumnarDoubles.makeColumnValueSelector(ReadableOffset offset, ImmutableBitmap nullValueBitmap)
default ColumnValueSelector<Float>	ColumnarFloats.makeColumnValueSelector(ReadableOffset offset, ImmutableBitmap nullValueBitmap)
default ColumnValueSelector<Long>	ColumnarLongs.makeColumnValueSelector(ReadableOffset offset, ImmutableBitmap nullValueBitmap)

Uses of ColumnValueSelector in org.apache.druid.segment.historical

Subinterfaces of ColumnValueSelector in org.apache.druid.segment.historical

Modifier and Type	Interface	Description
interface	HistoricalColumnSelector<T>
interface	HistoricalDimensionSelector	Specialization for DimensionSelector queryable via offsets from HistoricalCursor.
interface	SingleValueHistoricalDimensionSelector

Uses of ColumnValueSelector in org.apache.druid.segment.incremental

Classes in org.apache.druid.segment.incremental that implement ColumnValueSelector

Modifier and Type	Class	Description
class	IncrementalIndexRowHolder	IncrementalIndexRowHolder is a simple IncrementalIndexRowHolder.get()/IncrementalIndexRowHolder.set(org.apache.druid.segment.incremental.IncrementalIndexRow) holder of IncrementalIndexRow.

Methods in org.apache.druid.segment.incremental that return ColumnValueSelector

Modifier and Type	Method	Description
static ColumnValueSelector<?>	IncrementalIndex.makeMetricColumnValueSelector(IncrementalIndexRowSelector rowSelector, IncrementalIndexRowHolder currEntry, String metric)

Uses of ColumnValueSelector in org.apache.druid.segment.join

Classes in org.apache.druid.segment.join that implement ColumnValueSelector

Modifier and Type	Class	Description
class	PossiblyNullColumnValueSelector<T>	A ColumnValueSelector that wraps a base selector but might also generate null values on demand.
class	PossiblyNullDimensionSelector

Uses of ColumnValueSelector in org.apache.druid.segment.join.filter

Methods in org.apache.druid.segment.join.filter that return ColumnValueSelector

Modifier and Type	Method	Description
ColumnValueSelector<?>	AllNullColumnSelectorFactory.makeColumnValueSelector(String columnName)

Uses of ColumnValueSelector in org.apache.druid.segment.join.lookup

Methods in org.apache.druid.segment.join.lookup that return ColumnValueSelector

Modifier and Type	Method	Description
ColumnValueSelector	LookupColumnSelectorFactory.makeColumnValueSelector(String columnName)

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

Classes in org.apache.druid.segment.join.table that implement ColumnValueSelector

Modifier and Type	Class	Description
class	IndexedTableColumnValueSelector
class	IndexedTableDimensionSelector

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

Modifier and Type	Method	Description
ColumnValueSelector	IndexedTableColumnSelectorFactory.makeColumnValueSelector(String columnName)

Uses of ColumnValueSelector in org.apache.druid.segment.nested

Methods in org.apache.druid.segment.nested that return ColumnValueSelector

Modifier and Type	Method	Description
ColumnValueSelector<?>	CompressedNestedDataComplexColumn.makeColumnValueSelector(List<NestedPathPart> path, ColumnSelectorFactory selectorFactory, ReadableOffset readableOffset)	Create a selector for a nested path.
ColumnValueSelector<?>	CompressedNestedDataComplexColumn.makeColumnValueSelector(ReadableOffset offset)
ColumnValueSelector<?>	NestedColumnSelectorFactory.makeColumnValueSelector(List<NestedPathPart> path, ColumnSelectorFactory columnSelectorFactory, ReadableOffset readableOffset)	Make a ColumnValueSelector for a nested column.
ColumnValueSelector<?>	NestedFieldDictionaryEncodedColumn.makeColumnValueSelector(ReadableOffset offset)
ColumnValueSelector<?>	ScalarDoubleColumn.makeColumnValueSelector(ReadableOffset offset)
ColumnValueSelector<?>	ScalarLongColumn.makeColumnValueSelector(ReadableOffset offset)
ColumnValueSelector<?>	VariantColumn.makeColumnValueSelector(ReadableOffset offset)

Methods in org.apache.druid.segment.nested with parameters of type ColumnValueSelector

Modifier and Type	Method	Description
void	NestedDataColumnSerializer.serialize(ColumnValueSelector<? extends StructuredData> selector)
void	ScalarNestedCommonFormatColumnSerializer.serialize(ColumnValueSelector<? extends StructuredData> selector)
void	VariantColumnSerializer.serialize(ColumnValueSelector<? extends StructuredData> selector)

Uses of ColumnValueSelector in org.apache.druid.segment.projections

Methods in org.apache.druid.segment.projections that return ColumnValueSelector

Modifier and Type	Method	Description
ColumnValueSelector<?>	ConstantTimeColumn.makeColumnValueSelector(ReadableOffset offset)

Uses of ColumnValueSelector in org.apache.druid.segment.selector.settable

Subinterfaces of ColumnValueSelector in org.apache.druid.segment.selector.settable

Modifier and Type	Interface	Description
interface	SettableColumnValueSelector<T>	SettableColumnValueSelectors are used in QueryableIndexIndexableAdapter.RowIteratorImpl.

Classes in org.apache.druid.segment.selector.settable that implement ColumnValueSelector

Modifier and Type	Class	Description
class	SettableDimensionValueSelector	Settable implementation of DimensionSelector.
class	SettableDoubleColumnValueSelector
class	SettableFloatColumnValueSelector
class	SettableLongColumnValueSelector
class	SettableObjectColumnValueSelector<T>

Methods in org.apache.druid.segment.selector.settable with parameters of type ColumnValueSelector

Modifier and Type	Method	Description
void	SettableColumnValueSelector.setValueFrom(ColumnValueSelector<?> selector)
void	SettableDimensionValueSelector.setValueFrom(ColumnValueSelector<?> selector)
void	SettableDoubleColumnValueSelector.setValueFrom(ColumnValueSelector<?> selector)
void	SettableFloatColumnValueSelector.setValueFrom(ColumnValueSelector<?> selector)
void	SettableLongColumnValueSelector.setValueFrom(ColumnValueSelector<?> selector)
void	SettableObjectColumnValueSelector.setValueFrom(ColumnValueSelector selector)

Uses of ColumnValueSelector in org.apache.druid.segment.serde

Methods in org.apache.druid.segment.serde with parameters of type ColumnValueSelector

Modifier and Type	Method	Description
void	ComplexColumnSerializer.serialize(ColumnValueSelector<? extends T> selector)
void	CompressedComplexColumnSerializer.serialize(ColumnValueSelector<? extends T> selector)
void	LargeColumnSupportedComplexColumnSerializer.serialize(ColumnValueSelector<? extends T> selector)

Uses of ColumnValueSelector in org.apache.druid.segment.shim

Classes in org.apache.druid.segment.shim that implement ColumnValueSelector

Modifier and Type	Class	Description
class	ShimMultiValueDimensionSelector	Shim from MultiValueDimensionVectorSelector to ColumnValueSelector for a ShimCursor.
class	ShimNumericColumnValueSelector	Shim from VectorValueSelector to ColumnValueSelector for a ShimCursor.
class	ShimObjectColumnValueSelector	Shim from VectorObjectSelector to ColumnValueSelector for a ShimCursor.
class	ShimSingleValueDimensionSelector	Shim from SingleValueDimensionVectorSelector to ColumnValueSelector for a ShimCursor.
class	ShimVectorObjectDimSelector	DimensionSelector that internally uses a VectorObjectSelector.

Methods in org.apache.druid.segment.shim that return ColumnValueSelector

Modifier and Type	Method	Description
ColumnValueSelector	ShimColumnSelectorFactory.makeColumnValueSelector(String columnName)

Uses of ColumnValueSelector in org.apache.druid.segment.virtual

Classes in org.apache.druid.segment.virtual that implement ColumnValueSelector

Modifier and Type	Class	Description
class	BaseExpressionColumnValueSelector	Base class for many (although not all) ColumnValueSelector<ExprEval>.
class	ExpressionColumnValueSelector	Basic expression ColumnValueSelector.
class	ExpressionMultiValueDimensionSelector	Basic multi-value dimension selector for an Expr evaluating ColumnValueSelector.
static final class	NestedFieldVirtualColumn.FieldDimensionSelector	Create a DimensionSelector for a nested field on top of a ColumnValueSelector
class	RowBasedExpressionColumnValueSelector	Expression column value selector that examines a set of 'unknown' type input bindings on a row by row basis, transforming the expression to handle multi-value list typed inputs as they are encountered.
class	SingleLongInputCachingExpressionColumnValueSelector	Like ExpressionColumnValueSelector, but caches the most recently computed value and re-uses it in the case of runs in the underlying column.
class	SingleStringInputCachingExpressionColumnValueSelector	Like ExpressionColumnValueSelector, but caches results for the first CACHE_SIZE dictionary IDs of a string column.
class	SingleStringInputDeferredEvaluationExpressionDimensionSelector	A DimensionSelector decorator that directly exposes the underlying dictionary id in SingleStringInputDeferredEvaluationExpressionDimensionSelector.getRow(), saving expression computation until SingleStringInputDeferredEvaluationExpressionDimensionSelector.lookupName(int) is called.

Fields in org.apache.druid.segment.virtual declared as ColumnValueSelector

Modifier and Type	Field	Description
protected final ColumnValueSelector<ExprEval>	ExpressionMultiValueDimensionSelector.baseSelector

Methods in org.apache.druid.segment.virtual that return ColumnValueSelector

Modifier and Type	Method	Description
static ColumnValueSelector<?>	ExpressionSelectors.castColumnValueSelector(RowIdSupplier rowIdSupplier, ColumnValueSelector<?> delegate, ColumnType delegateType, ColumnType castToType)	Wrap the output of BaseObjectColumnValueSelector.getObject() in ExprEval.ofType(ExpressionType, Object) using the supplied delegate type and cast using ExprEval.castTo(org.apache.druid.math.expr.ExpressionType) to convert to the target type.
static ColumnValueSelector	ExpressionSelectors.makeColumnValueSelector(ColumnSelectorFactory columnSelectorFactory, Expr expression)	Makes a ColumnValueSelector whose getObject method returns an Object that is the value computed by an ExprEval.
ColumnValueSelector<?>	ExpressionVirtualColumn.makeColumnValueSelector(String columnName, ColumnSelectorFactory factory)
ColumnValueSelector<?>	FallbackVirtualColumn.makeColumnValueSelector(String columnName, ColumnSelectorFactory factory)
ColumnValueSelector<?>	ListFilteredVirtualColumn.makeColumnValueSelector(String columnName, ColumnSelectorFactory factory)
ColumnValueSelector<?>	NestedFieldVirtualColumn.makeColumnValueSelector(String columnName, ColumnSelectorFactory selectorFactory, ColumnSelector columnSelector, ReadableOffset offset)
ColumnValueSelector<?>	PrefixFilteredVirtualColumn.makeColumnValueSelector(String columnName, ColumnSelectorFactory factory)
ColumnValueSelector<?>	RegexFilteredVirtualColumn.makeColumnValueSelector(String columnName, ColumnSelectorFactory factory)
ColumnValueSelector<?>	SpecializedExpressionVirtualColumn.makeColumnValueSelector(String columnName, ColumnSelectorFactory columnSelectorFactory, ColumnSelector columnSelector, ReadableOffset offset)
ColumnValueSelector<?>	VirtualizedColumnSelectorFactory.makeColumnValueSelector(String columnName)
static ColumnValueSelector<ExprEval>	ExpressionSelectors.makeExprEvalSelector(ColumnSelectorFactory columnSelectorFactory, Expr expression)	Makes a ColumnValueSelector whose getObject method returns an ExprEval.
static ColumnValueSelector	ExpressionSelectors.makeStringColumnValueSelector(ColumnSelectorFactory columnSelectorFactory, Expr expression)

Methods in org.apache.druid.segment.virtual with parameters of type ColumnValueSelector

Modifier and Type	Method	Description
static ColumnValueSelector<?>	ExpressionSelectors.castColumnValueSelector(RowIdSupplier rowIdSupplier, ColumnValueSelector<?> delegate, ColumnType delegateType, ColumnType castToType)	Wrap the output of BaseObjectColumnValueSelector.getObject() in ExprEval.ofType(ExpressionType, Object) using the supplied delegate type and cast using ExprEval.castTo(org.apache.druid.math.expr.ExpressionType) to convert to the target type.
static ExpressionMultiValueDimensionSelector	ExpressionMultiValueDimensionSelector.fromValueSelector(ColumnValueSelector<ExprEval> baseSelector, ExtractionFn extractionFn)
static <T> com.google.common.base.Supplier<T>	ExpressionSelectors.makeNullableNumericSupplier(ColumnValueSelector selector, com.google.common.base.Supplier<T> supplier)	Wraps a ColumnValueSelector and uses it to supply numeric values in a null-aware way.

Constructors in org.apache.druid.segment.virtual with parameters of type ColumnValueSelector

Modifier	Constructor	Description
	ExpressionMultiValueDimensionSelector(ColumnValueSelector<ExprEval> baseSelector)
	FieldDimensionSelector(ColumnValueSelector<?> valueSelector)
	SingleLongInputCachingExpressionColumnValueSelector(ColumnValueSelector selector, Expr expression, boolean useLruCache, RowIdSupplier rowIdSupplier)