Uses of Interface
io.druid.segment.ColumnValueSelector

Packages that use ColumnValueSelector

Package	Description
io.druid.query
io.druid.query.aggregation
io.druid.query.aggregation.cardinality
io.druid.query.aggregation.cardinality.types
io.druid.query.aggregation.datasketches.quantiles
io.druid.query.dimension
io.druid.query.filter
io.druid.query.groupby
io.druid.query.groupby.epinephelinae.column
io.druid.query.select
io.druid.query.topn
io.druid.query.topn.types
io.druid.segment
io.druid.segment.column
io.druid.segment.data
io.druid.segment.historical
io.druid.segment.incremental
io.druid.segment.virtual

Uses of ColumnValueSelector in io.druid.query

Methods in io.druid.query that return ColumnValueSelector

Modifier and Type	Method and Description
ColumnValueSelector	ColumnSelectorPlus.getSelector()

Constructors in io.druid.query with parameters of type ColumnValueSelector

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

Uses of ColumnValueSelector in io.druid.query.aggregation

Subinterfaces of ColumnValueSelector in io.druid.query.aggregation

Modifier and Type	Interface and 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 io.druid.query.aggregation that implement ColumnValueSelector

Modifier and Type	Class and Description
class	DoubleAggregateCombiner Specialization of AggregateCombiner for primitive double aggregations.
class	LongAggregateCombiner Specialization of AggregateCombiner for primitive long aggregations.
class	LongSumAggregateCombiner
class	ObjectAggregateCombiner<T> Specialization of AggregateCombiner for object aggregations.

Methods in io.druid.query.aggregation with parameters of type ColumnValueSelector

Modifier and Type	Method and Description
void	LongSumAggregateCombiner.fold(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.reset(ColumnValueSelector selector)
void	AggregateCombiner.reset(ColumnValueSelector selector) Resets this AggregateCombiner's state value to the value of the given selector, e.

Uses of ColumnValueSelector in io.druid.query.aggregation.cardinality

Classes in io.druid.query.aggregation.cardinality that implement ColumnValueSelector

Modifier and Type	Class and Description
class	HyperLogLogCollectorAggregateCombiner

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

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

Uses of ColumnValueSelector in io.druid.query.aggregation.cardinality.types

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

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

Uses of ColumnValueSelector in io.druid.query.aggregation.datasketches.quantiles

Constructors in io.druid.query.aggregation.datasketches.quantiles with parameters of type ColumnValueSelector

Constructor and Description
DoublesSketchBuildAggregator(ColumnValueSelector<Double> valueSelector, int size)
DoublesSketchBuildBufferAggregator(ColumnValueSelector<Double> valueSelector, int size, int maxIntermediateSize)
DoublesSketchMergeAggregator(ColumnValueSelector<com.yahoo.sketches.quantiles.DoublesSketch> selector, int k)
DoublesSketchMergeBufferAggregator(ColumnValueSelector<com.yahoo.sketches.quantiles.DoublesSketch> selector, int k, int maxIntermediateSize)

Uses of ColumnValueSelector in io.druid.query.dimension

Methods in io.druid.query.dimension with parameters of type ColumnValueSelector

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

Uses of ColumnValueSelector in io.druid.query.filter

Methods in io.druid.query.filter with parameters of type ColumnValueSelector

Modifier and Type	Method and Description
ValueMatcherColumnSelectorStrategy	ValueMatcherColumnSelectorStrategyFactory.makeColumnSelectorStrategy(ColumnCapabilities capabilities, ColumnValueSelector selector)

Uses of ColumnValueSelector in io.druid.query.groupby

Methods in io.druid.query.groupby that return ColumnValueSelector

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

Uses of ColumnValueSelector in io.druid.query.groupby.epinephelinae.column

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

Modifier and Type	Method and Description
Object	StringGroupByColumnSelectorStrategy.getOnlyValue(ColumnValueSelector selector)
Object	LongGroupByColumnSelectorStrategy.getOnlyValue(ColumnValueSelector selector)
Object	GroupByColumnSelectorStrategy.getOnlyValue(ColumnValueSelector selector) Retrieve a single object using the ColumnValueSelector.
Object	FloatGroupByColumnSelectorStrategy.getOnlyValue(ColumnValueSelector selector)
Object	DoubleGroupByColumnSelectorStrategy.getOnlyValue(ColumnValueSelector selector)
Object	DictionaryBuildingStringGroupByColumnSelectorStrategy.getOnlyValue(ColumnValueSelector selector)
void	StringGroupByColumnSelectorStrategy.initColumnValues(ColumnValueSelector selector, int columnIndex, Object[] valuess)
void	LongGroupByColumnSelectorStrategy.initColumnValues(ColumnValueSelector selector, int columnIndex, Object[] valuess)
void	GroupByColumnSelectorStrategy.initColumnValues(ColumnValueSelector selector, int columnIndex, Object[] valuess) Retrieve a row object from the ColumnValueSelector and put it in valuess at columnIndex.
void	FloatGroupByColumnSelectorStrategy.initColumnValues(ColumnValueSelector selector, int columnIndex, Object[] valuess)
void	DoubleGroupByColumnSelectorStrategy.initColumnValues(ColumnValueSelector selector, int columnIndex, Object[] values)
void	DictionaryBuildingStringGroupByColumnSelectorStrategy.initColumnValues(ColumnValueSelector selector, int columnIndex, Object[] valuess)

Uses of ColumnValueSelector in io.druid.query.select

Methods in io.druid.query.select with parameters of type ColumnValueSelector

Modifier and Type	Method and Description
SelectQueryEngine.SelectColumnSelectorStrategy	SelectQueryEngine.SelectStrategyFactory.makeColumnSelectorStrategy(ColumnCapabilities capabilities, ColumnValueSelector selector)

Uses of ColumnValueSelector in io.druid.query.topn

Methods in io.druid.query.topn with parameters of type ColumnValueSelector

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

Uses of ColumnValueSelector in io.druid.query.topn.types

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

Modifier and Type	Method and Description
TopNColumnSelectorStrategy	TopNColumnSelectorStrategyFactory.makeColumnSelectorStrategy(ColumnCapabilities capabilities, ColumnValueSelector selector)

Uses of ColumnValueSelector in io.druid.segment

Subinterfaces of ColumnValueSelector in io.druid.segment

Modifier and Type	Interface and Description
interface	DimensionSelector
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().
interface	ObjectColumnSelector<T> This interface is convenient for implementation of "object-sourcing" ColumnValueSelectors, it provides default implementations for all ColumnValueSelector's methods except BaseObjectColumnValueSelector.getObject() and BaseObjectColumnValueSelector.classOfObject().

Classes in io.druid.segment that implement ColumnValueSelector

Modifier and Type	Class and Description
class	ConstantColumnValueSelector<T>
class	ConstantDimensionSelector
class	DoubleWrappingDimensionSelector
class	FloatWrappingDimensionSelector
class	LongWrappingDimensionSelector
class	NilColumnValueSelector Represents "absent" column.
class	NullDimensionSelector
class	SingleScanTimeDimSelector

Methods in io.druid.segment that return ColumnValueSelector

Modifier and Type	Method and Description
static ColumnValueSelector	DimensionHandlerUtils.getColumnValueSelectorFromDimensionSpec(DimensionSpec dimSpec, ColumnSelectorFactory columnSelectorFactory)
ColumnValueSelector	ColumnSelectorFactory.makeColumnValueSelector(String columnName) Returns ColumnValueSelector corresponding to the given column name, or NilColumnValueSelector if the column with such name is absent.
ColumnValueSelector<?>	MapVirtualColumn.makeColumnValueSelector(String columnName, ColumnSelectorFactory factory)
ColumnValueSelector<?>	VirtualColumns.makeColumnValueSelector(String columnName, ColumnSelectorFactory factory) Create a column value selector.
ColumnValueSelector<?>	VirtualColumn.makeColumnValueSelector(String columnName, ColumnSelectorFactory factory) Build a selector corresponding to this virtual column.
ColumnValueSelector<?>	StringDimensionIndexer.makeColumnValueSelector(TimeAndDimsHolder currEntry, IncrementalIndex.DimensionDesc desc)
ColumnValueSelector<?>	LongDimensionIndexer.makeColumnValueSelector(TimeAndDimsHolder currEntry, IncrementalIndex.DimensionDesc desc)
ColumnValueSelector<?>	FloatDimensionIndexer.makeColumnValueSelector(TimeAndDimsHolder currEntry, IncrementalIndex.DimensionDesc desc)
ColumnValueSelector<?>	DoubleDimensionIndexer.makeColumnValueSelector(TimeAndDimsHolder currEntry, IncrementalIndex.DimensionDesc desc)
ColumnValueSelector<?>	DimensionIndexer.makeColumnValueSelector(TimeAndDimsHolder currEntry, IncrementalIndex.DimensionDesc desc) Return an object used to read values from this indexer's column.

Uses of ColumnValueSelector in io.druid.segment.column

Methods in io.druid.segment.column that return ColumnValueSelector

Modifier and Type	Method and Description
ColumnValueSelector	LongsColumn.makeColumnValueSelector(ReadableOffset offset)
ColumnValueSelector	FloatsColumn.makeColumnValueSelector(ReadableOffset offset)
ColumnValueSelector	DoublesColumn.makeColumnValueSelector(ReadableOffset offset)
default ColumnValueSelector	DictionaryEncodedColumn.makeColumnValueSelector(ReadableOffset offset)
default ColumnValueSelector	ComplexColumn.makeColumnValueSelector(ReadableOffset offset)
ColumnValueSelector	BaseColumn.makeColumnValueSelector(ReadableOffset offset)

Methods in io.druid.segment.column with parameters of type ColumnValueSelector

Modifier and Type	Method and Description
DimensionSelector	ValueType.makeNumericWrappingDimensionSelector(ColumnValueSelector numericColumnValueSelector, ExtractionFn extractionFn)

Uses of ColumnValueSelector in io.druid.segment.data

Methods in io.druid.segment.data that return ColumnValueSelector

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

Uses of ColumnValueSelector in io.druid.segment.historical

Subinterfaces of ColumnValueSelector in io.druid.segment.historical

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

Uses of ColumnValueSelector in io.druid.segment.incremental

Methods in io.druid.segment.incremental that return ColumnValueSelector

Modifier and Type	Method and Description
ColumnValueSelector<?>	IncrementalIndex.makeMetricColumnValueSelector(String metric, TimeAndDimsHolder currEntry)

Uses of ColumnValueSelector in io.druid.segment.virtual

Classes in io.druid.segment.virtual that implement ColumnValueSelector

Modifier and Type	Class and Description
class	BaseSingleValueDimensionSelector
class	ExpressionColumnValueSelector
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	SingleStringInputDimensionSelector A DimensionSelector decorator that computes an expression on top of it.

Methods in io.druid.segment.virtual that return ColumnValueSelector

Modifier and Type	Method and Description
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<?>	VirtualizedColumnSelectorFactory.makeColumnValueSelector(String columnName)
ColumnValueSelector<?>	ExpressionVirtualColumn.makeColumnValueSelector(String columnName, ColumnSelectorFactory factory)
static ColumnValueSelector<ExprEval>	ExpressionSelectors.makeExprEvalSelector(ColumnSelectorFactory columnSelectorFactory, Expr expression) Makes a ColumnValueSelector whose getObject method returns an ExprEval.

Constructors in io.druid.segment.virtual with parameters of type ColumnValueSelector

Constructor and Description
SingleLongInputCachingExpressionColumnValueSelector(ColumnValueSelector selector, Expr expression)