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

Packages that use ColumnValueSelector

Package	Description
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.first
org.apache.druid.query.aggregation.last
org.apache.druid.query.dimension
org.apache.druid.query.filter
org.apache.druid.query.groupby
org.apache.druid.query.groupby.epinephelinae.column
org.apache.druid.query.select
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.selector.settable
org.apache.druid.segment.serde
org.apache.druid.segment.virtual

Uses of ColumnValueSelector in org.apache.druid.query

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

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

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

Constructor and 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 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 org.apache.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	NullableAggregateCombiner<T> The result of a NullableAggregateCombiner will be null if all the values to be combined are null values or no values are combined at all.
class	ObjectAggregateCombiner<T> Specialization of AggregateCombiner for object aggregations.

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

Modifier and Type	Method and Description
void	NullableAggregateCombiner.fold(ColumnValueSelector selector)
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	NullableAggregateCombiner.reset(ColumnValueSelector selector)
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 org.apache.druid.query.aggregation.cardinality

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

Modifier and Type	Class and Description
class	HyperLogLogCollectorAggregateCombiner

Methods in org.apache.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 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 and Description
CardinalityAggregatorColumnSelectorStrategy	CardinalityAggregatorColumnSelectorStrategyFactory.makeColumnSelectorStrategy(ColumnCapabilities capabilities, ColumnValueSelector selector)

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

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

Modifier and Type	Class and Description
class	StringFirstAggregateCombiner

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

Modifier and Type	Method and Description
protected ColumnValueSelector	LongFirstAggregatorFactory.selector(ColumnSelectorFactory metricFactory)
protected ColumnValueSelector	FloatFirstAggregatorFactory.selector(ColumnSelectorFactory metricFactory)
protected ColumnValueSelector	DoubleFirstAggregatorFactory.selector(ColumnSelectorFactory metricFactory)

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

Modifier and Type	Method and Description
protected Aggregator	LongFirstAggregatorFactory.factorize(ColumnSelectorFactory metricFactory, ColumnValueSelector selector)
protected Aggregator	FloatFirstAggregatorFactory.factorize(ColumnSelectorFactory metricFactory, ColumnValueSelector selector)
protected Aggregator	DoubleFirstAggregatorFactory.factorize(ColumnSelectorFactory metricFactory, ColumnValueSelector selector)
protected BufferAggregator	LongFirstAggregatorFactory.factorizeBuffered(ColumnSelectorFactory metricFactory, ColumnValueSelector selector)
protected BufferAggregator	FloatFirstAggregatorFactory.factorizeBuffered(ColumnSelectorFactory metricFactory, ColumnValueSelector selector)
protected BufferAggregator	DoubleFirstAggregatorFactory.factorizeBuffered(ColumnSelectorFactory metricFactory, ColumnValueSelector selector)
void	StringFirstAggregateCombiner.fold(ColumnValueSelector selector)
void	StringFirstAggregateCombiner.reset(ColumnValueSelector selector)

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

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

Modifier and Type	Class and Description
class	StringLastAggregateCombiner

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

Modifier and Type	Method and Description
protected ColumnValueSelector	LongLastAggregatorFactory.selector(ColumnSelectorFactory metricFactory)
protected ColumnValueSelector	FloatLastAggregatorFactory.selector(ColumnSelectorFactory metricFactory)
protected ColumnValueSelector	DoubleLastAggregatorFactory.selector(ColumnSelectorFactory metricFactory)

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

Modifier and Type	Method and Description
protected Aggregator	LongLastAggregatorFactory.factorize(ColumnSelectorFactory metricFactory, ColumnValueSelector selector)
protected Aggregator	FloatLastAggregatorFactory.factorize(ColumnSelectorFactory metricFactory, ColumnValueSelector selector)
protected Aggregator	DoubleLastAggregatorFactory.factorize(ColumnSelectorFactory metricFactory, ColumnValueSelector selector)
protected BufferAggregator	LongLastAggregatorFactory.factorizeBuffered(ColumnSelectorFactory metricFactory, ColumnValueSelector selector)
protected BufferAggregator	FloatLastAggregatorFactory.factorizeBuffered(ColumnSelectorFactory metricFactory, ColumnValueSelector selector)
protected BufferAggregator	DoubleLastAggregatorFactory.factorizeBuffered(ColumnSelectorFactory metricFactory, ColumnValueSelector selector)
void	StringLastAggregateCombiner.fold(ColumnValueSelector selector)
void	StringLastAggregateCombiner.reset(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 and Description
ColumnSelectorStrategyClass	ColumnSelectorStrategyFactory.makeColumnSelectorStrategy(ColumnCapabilities capabilities, ColumnValueSelector selector)

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

Methods in org.apache.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 org.apache.druid.query.groupby

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

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

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 and Description
Object	StringGroupByColumnSelectorStrategy.getOnlyValue(ColumnValueSelector selector)
Object	NullableValueGroupByColumnSelectorStrategy.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	NullableValueGroupByColumnSelectorStrategy.initColumnValues(ColumnValueSelector selector, int columnIndex, Object[] values)
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 org.apache.druid.query.select

Methods in org.apache.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 org.apache.druid.query.topn

Methods in org.apache.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 org.apache.druid.query.topn.types

Methods in org.apache.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 org.apache.druid.segment

Subinterfaces of ColumnValueSelector in org.apache.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().

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

Modifier and Type	Class and Description
class	AbstractDimensionSelector An abstract class that provides an implementation of AbstractDimensionSelector.getObject().
class	BaseSingleValueDimensionSelector
class	ConstantDimensionSelector
class	ConstantExprEvalSelector
class	DoubleWrappingDimensionSelector
class	FloatWrappingDimensionSelector
class	LongWrappingDimensionSelector
class	NilColumnValueSelector Represents "absent" column.
class	ObjectColumnSelector<T> This class is convenient for implementation of "object-sourcing" ColumnValueSelectors, it provides default implementations for all ColumnValueSelector's methods except BaseObjectColumnValueSelector.getObject() and BaseObjectColumnValueSelector.classOfObject().
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 and Description
static ColumnValueSelector[]	ColumnValueSelector.EMPTY_ARRAY

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

Modifier and Type	Method and Description
ColumnValueSelector	StringDimensionMergerV9.convertSortedSegmentRowValuesToMergedRowValues(int segmentIndex, ColumnValueSelector source)
ColumnValueSelector	NumericDimensionMergerV9.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.
ColumnValueSelector	StringDimensionIndexer.convertUnsortedValuesToSorted(ColumnValueSelector selectorWithUnsortedValues)
ColumnValueSelector	LongDimensionIndexer.convertUnsortedValuesToSorted(ColumnValueSelector selectorWithUnsortedValues)
ColumnValueSelector	FloatDimensionIndexer.convertUnsortedValuesToSorted(ColumnValueSelector selectorWithUnsortedValues)
ColumnValueSelector	DoubleDimensionIndexer.convertUnsortedValuesToSorted(ColumnValueSelector selectorWithUnsortedValues)
ColumnValueSelector	DimensionIndexer.convertUnsortedValuesToSorted(ColumnValueSelector selectorWithUnsortedValues) Converts dictionary-encoded row values from unspecified (random) encoding order, to sorted encoding.
ColumnValueSelector<?>	StringDimensionIndexer.makeColumnValueSelector(IncrementalIndexRowHolder currEntry, IncrementalIndex.DimensionDesc desc)
ColumnValueSelector<?>	LongDimensionIndexer.makeColumnValueSelector(IncrementalIndexRowHolder currEntry, IncrementalIndex.DimensionDesc desc)
ColumnValueSelector<?>	FloatDimensionIndexer.makeColumnValueSelector(IncrementalIndexRowHolder currEntry, IncrementalIndex.DimensionDesc desc)
ColumnValueSelector<?>	DoubleDimensionIndexer.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	ColumnSelectorFactory.makeColumnValueSelector(String columnName) Returns ColumnValueSelector corresponding to the given column name, or NilColumnValueSelector if the column with such name is absent.
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.

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

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

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

Modifier and Type	Method and Description
ColumnValueSelector	StringDimensionMergerV9.convertSortedSegmentRowValuesToMergedRowValues(int segmentIndex, ColumnValueSelector source)
ColumnValueSelector	NumericDimensionMergerV9.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.
ColumnValueSelector	StringDimensionIndexer.convertUnsortedValuesToSorted(ColumnValueSelector selectorWithUnsortedValues)
ColumnValueSelector	LongDimensionIndexer.convertUnsortedValuesToSorted(ColumnValueSelector selectorWithUnsortedValues)
ColumnValueSelector	FloatDimensionIndexer.convertUnsortedValuesToSorted(ColumnValueSelector selectorWithUnsortedValues)
ColumnValueSelector	DoubleDimensionIndexer.convertUnsortedValuesToSorted(ColumnValueSelector selectorWithUnsortedValues)
ColumnValueSelector	DimensionIndexer.convertUnsortedValuesToSorted(ColumnValueSelector selectorWithUnsortedValues) Converts dictionary-encoded row values from unspecified (random) encoding order, to sorted encoding.
static TransformableRowIterator	IndexMerger.makeRowIteratorWithConvertedDimensionColumns(TransformableRowIterator sourceRowIterator, ColumnValueSelector[] convertedDimensionSelectors, ColumnValueSelector[] convertedMarkedDimensionSelectors)
static TransformableRowIterator	IndexMerger.makeRowIteratorWithConvertedDimensionColumns(TransformableRowIterator sourceRowIterator, ColumnValueSelector[] convertedDimensionSelectors, ColumnValueSelector[] convertedMarkedDimensionSelectors)
void	StringDimensionMergerV9.processMergedRow(ColumnValueSelector selector)
void	NumericDimensionMergerV9.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.
void	LongColumnSerializerV2.serialize(ColumnValueSelector<?> selector)
void	LongColumnSerializer.serialize(ColumnValueSelector<?> selector)
void	FloatColumnSerializerV2.serialize(ColumnValueSelector<?> selector)
void	FloatColumnSerializer.serialize(ColumnValueSelector<?> selector)
void	DoubleColumnSerializerV2.serialize(ColumnValueSelector<?> selector)
void	DoubleColumnSerializer.serialize(ColumnValueSelector<?> selector)
void	GenericColumnSerializer.serialize(ColumnValueSelector<? extends T> selector)

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

Constructor and Description
RowPointer(ColumnValueSelector timestampSelector, ColumnValueSelector[] dimensionSelectors, List<DimensionHandler> dimensionHandlers, ColumnValueSelector[] metricSelectors, List<String> metricNames, IntSupplier rowNumPointer)
RowPointer(ColumnValueSelector timestampSelector, ColumnValueSelector[] dimensionSelectors, List<DimensionHandler> dimensionHandlers, ColumnValueSelector[] metricSelectors, List<String> metricNames, IntSupplier rowNumPointer)
RowPointer(ColumnValueSelector timestampSelector, 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 and Description
ColumnValueSelector<?>	LongsColumn.makeColumnValueSelector(ReadableOffset offset)
ColumnValueSelector<?>	FloatsColumn.makeColumnValueSelector(ReadableOffset offset)
ColumnValueSelector<?>	DoublesColumn.makeColumnValueSelector(ReadableOffset offset)
default ColumnValueSelector<?>	DictionaryEncodedColumn.makeColumnValueSelector(ReadableOffset offset)
ColumnValueSelector<?>	ComplexColumn.makeColumnValueSelector(ReadableOffset offset)
ColumnValueSelector<?>	BaseColumn.makeColumnValueSelector(ReadableOffset offset)

Methods in org.apache.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 org.apache.druid.segment.data

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

Modifier and Type	Method and Description
default ColumnValueSelector<Long>	ColumnarLongs.makeColumnValueSelector(ReadableOffset offset, ImmutableBitmap nullValueBitmap)
default ColumnValueSelector<Float>	ColumnarFloats.makeColumnValueSelector(ReadableOffset offset, ImmutableBitmap nullValueBitmap)
default ColumnValueSelector<Double>	ColumnarDoubles.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 and 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 and 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 and Description
ColumnValueSelector<?>	IncrementalIndex.makeMetricColumnValueSelector(String metric, IncrementalIndexRowHolder currEntry)

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

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

Modifier and Type	Interface and 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 and 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 and Description
void	SettableObjectColumnValueSelector.setValueFrom(ColumnValueSelector selector)
void	SettableLongColumnValueSelector.setValueFrom(ColumnValueSelector<?> selector)
void	SettableFloatColumnValueSelector.setValueFrom(ColumnValueSelector<?> selector)
void	SettableDoubleColumnValueSelector.setValueFrom(ColumnValueSelector<?> selector)
void	SettableDimensionValueSelector.setValueFrom(ColumnValueSelector<?> selector)
void	SettableColumnValueSelector.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 and Description
void	LargeColumnSupportedComplexColumnSerializer.serialize(ColumnValueSelector<? extends T> selector)
void	ComplexColumnSerializer.serialize(ColumnValueSelector<? extends T> selector)

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

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

Modifier and Type	Class and Description
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 org.apache.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 org.apache.druid.segment.virtual with parameters of type ColumnValueSelector

Constructor and Description
SingleLongInputCachingExpressionColumnValueSelector(ColumnValueSelector selector, Expr expression, boolean useLruCache)