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

Packages that use DimensionSelector

Package	Description
org.apache.druid.frame.field
org.apache.druid.frame.processor
org.apache.druid.frame.segment.row
org.apache.druid.frame.util
org.apache.druid.frame.write
org.apache.druid.query.aggregation.cardinality.types
org.apache.druid.query.dimension
org.apache.druid.query.filter
org.apache.druid.query.groupby.epinephelinae.column
org.apache.druid.query.rowsandcols.semantic
org.apache.druid.query.scan
org.apache.druid.query.search
org.apache.druid.query.topn
org.apache.druid.query.topn.types
org.apache.druid.segment
org.apache.druid.segment.column
org.apache.druid.segment.filter
org.apache.druid.segment.historical
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.selector.settable
org.apache.druid.segment.virtual

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

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

Modifier and Type	Method	Description
DimensionSelector	ComplexFieldReader.makeDimensionSelector(org.apache.datasketches.memory.Memory memory, ReadableFieldPointer fieldPointer, ExtractionFn extractionFn)
DimensionSelector	FieldReader.makeDimensionSelector(org.apache.datasketches.memory.Memory memory, ReadableFieldPointer fieldPointer, ExtractionFn extractionFn)	Create a DimensionSelector backed by some memory and a moveable pointer.
DimensionSelector	NumericArrayFieldReader.makeDimensionSelector(org.apache.datasketches.memory.Memory memory, ReadableFieldPointer fieldPointer, ExtractionFn extractionFn)
DimensionSelector	NumericFieldReader.makeDimensionSelector(org.apache.datasketches.memory.Memory memory, ReadableFieldPointer fieldPointer, ExtractionFn extractionFn)
DimensionSelector	StringFieldReader.makeDimensionSelector(org.apache.datasketches.memory.Memory memory, ReadableFieldPointer fieldPointer, ExtractionFn extractionFn)

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

Constructor	Description
StringFieldWriter(DimensionSelector selector)

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

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

Modifier and Type	Method	Description
DimensionSelector	MultiColumnSelectorFactory.makeDimensionSelector(DimensionSpec dimensionSpec)

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

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

Modifier and Type	Method	Description
DimensionSelector	FrameColumnSelectorFactory.makeDimensionSelector(DimensionSpec dimensionSpec)

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

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

Modifier and Type	Method	Description
DimensionSelector	SettableLongVirtualColumn.makeDimensionSelector(DimensionSpec dimensionSpec, ColumnSelectorFactory factory)

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

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

Modifier and Type	Method	Description
static List<ByteBuffer>	FrameWriterUtils.getUtf8ByteBuffersFromStringSelector(DimensionSelector selector, boolean multiValue)	Retrieves UTF-8 byte buffers from a DimensionSelector, which is expected to be the kind of selector you get for an STRING column.

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

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

Modifier and Type	Method	Description
void	StringCardinalityAggregatorColumnSelectorStrategy.hashRow(DimensionSelector dimSelector, com.google.common.hash.Hasher hasher)
void	StringCardinalityAggregatorColumnSelectorStrategy.hashValues(DimensionSelector dimSelector, HyperLogLogCollector collector)

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

Methods in org.apache.druid.query.dimension that return DimensionSelector

Modifier and Type	Method	Description
DimensionSelector	DefaultDimensionSpec.decorate(DimensionSelector selector)
DimensionSelector	DimensionSpec.decorate(DimensionSelector selector)	Decorate a DimensionSelector, allowing custom transformation of underlying behavior (e.g.
DimensionSelector	ExtractionDimensionSpec.decorate(DimensionSelector selector)
DimensionSelector	ListFilteredDimensionSpec.decorate(DimensionSelector selector)
DimensionSelector	LookupDimensionSpec.decorate(DimensionSelector selector)
DimensionSelector	PrefixFilteredDimensionSpec.decorate(DimensionSelector selector)
DimensionSelector	RegexFilteredDimensionSpec.decorate(DimensionSelector selector)
static DimensionSelector	ListFilteredDimensionSpec.filterAllowList(Set<String> values, DimensionSelector selector, boolean forcePredicateFilter)
static DimensionSelector	ListFilteredDimensionSpec.filterDenyList(Set<String> values, DimensionSelector selector, boolean forcePredicateFilter)

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

Modifier and Type	Method	Description
DimensionSelector	DefaultDimensionSpec.decorate(DimensionSelector selector)
DimensionSelector	DimensionSpec.decorate(DimensionSelector selector)	Decorate a DimensionSelector, allowing custom transformation of underlying behavior (e.g.
DimensionSelector	ExtractionDimensionSpec.decorate(DimensionSelector selector)
DimensionSelector	ListFilteredDimensionSpec.decorate(DimensionSelector selector)
DimensionSelector	LookupDimensionSpec.decorate(DimensionSelector selector)
DimensionSelector	PrefixFilteredDimensionSpec.decorate(DimensionSelector selector)
DimensionSelector	RegexFilteredDimensionSpec.decorate(DimensionSelector selector)
static DimensionSelector	ListFilteredDimensionSpec.filterAllowList(Set<String> values, DimensionSelector selector, boolean forcePredicateFilter)
static DimensionSelector	ListFilteredDimensionSpec.filterDenyList(Set<String> values, DimensionSelector selector, boolean forcePredicateFilter)

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

Methods in org.apache.druid.query.filter with parameters of type DimensionSelector

Modifier and Type	Method	Description
ValueMatcher	EqualityFilter.TypedConstantValueMatcherFactory.makeDimensionProcessor(DimensionSelector selector, boolean multiValue)

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

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

Modifier and Type	Method	Description
static GroupByColumnSelectorStrategy	KeyMappingMultiValueGroupByColumnSelectorStrategy.create(ColumnCapabilities capabilities, DimensionSelector dimensionSelector)

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

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

Modifier and Type	Method	Description
DimensionSelector	DefaultColumnSelectorFactoryMaker.ColumnAccessorBasedColumnSelectorFactory.makeDimensionSelector(DimensionSpec dimensionSpec)

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

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

Modifier and Type	Method	Description
DimensionSelector	SettableCursorColumnSelectorFactory.makeDimensionSelector(DimensionSpec dimensionSpec)

Uses of DimensionSelector in org.apache.druid.query.search

Methods in org.apache.druid.query.search with parameters of type DimensionSelector

Modifier and Type	Method	Description
void	SearchQueryRunner.StringSearchColumnSelectorStrategy.updateSearchResultSet(String outputName, DimensionSelector selector, SearchQuerySpec searchQuerySpec, int limit, it.unimi.dsi.fastutil.objects.Object2IntRBTreeMap<SearchHit> set)

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

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

Modifier and Type	Method	Description
DimensionSelector	TopNParams.getDimSelector()

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

Modifier and Type	Method	Description
long	Generic1AggPooledTopNScanner.scanAndAggregate(DimensionSelector dimensionSelector, BufferAggregator aggregator, int aggregatorSize, Cursor cursor, int[] positions, ByteBuffer resultsBuffer)
long	Generic1AggPooledTopNScannerPrototype.scanAndAggregate(DimensionSelector dimensionSelector, BufferAggregator aggregator, int aggregatorSize, Cursor cursor, int[] positions, ByteBuffer resultsBuffer)	Any changes to this method should be coordinated with TopNUtils, PooledTopNAlgorithm.computeSpecializedScanAndAggregateImplementations() and downstream methods.
long	Generic2AggPooledTopNScanner.scanAndAggregate(DimensionSelector dimensionSelector, BufferAggregator aggregator1, int aggregator1Size, BufferAggregator aggregator2, int aggregator2Size, Cursor cursor, int[] positions, ByteBuffer resultsBuffer)
long	Generic2AggPooledTopNScannerPrototype.scanAndAggregate(DimensionSelector dimensionSelector, BufferAggregator aggregator1, int aggregator1Size, BufferAggregator aggregator2, int aggregator2Size, Cursor cursor, int[] positions, ByteBuffer resultsBuffer)	Any changes to this method should be coordinated with TopNUtils, PooledTopNAlgorithm.computeSpecializedScanAndAggregateImplementations() and downstream methods.

Constructors in org.apache.druid.query.topn with parameters of type DimensionSelector

Constructor	Description
AggregatorArrayProvider(DimensionSelector dimSelector, TopNQuery query, int cardinality, StorageAdapter storageAdapter)
BaseArrayProvider(DimensionSelector dimSelector, TopNQuery query, StorageAdapter storageAdapter)

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

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

Modifier and Type	Method	Description
int	StringTopNColumnAggregatesProcessor.getCardinality(DimensionSelector selector)
long	StringTopNColumnAggregatesProcessor.scanAndAggregate(TopNQuery query, DimensionSelector selector, Cursor cursor, Aggregator[][] rowSelector)

Uses of DimensionSelector in org.apache.druid.segment

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

Modifier and Type	Class	Description
class	AbstractDimensionSelector	An abstract class that provides an implementation of AbstractDimensionSelector.getObject().
class	BaseSingleValueDimensionSelector
class	ConstantDimensionSelector
class	ConstantMultiValueDimensionSelector
class	DoubleWrappingDimensionSelector
class	FloatWrappingDimensionSelector
class	LongWrappingDimensionSelector
class	SingleScanTimeDimensionSelector	A special DimensionSelector for projected time columns - it assumes time values are scanned once and values are grouped together (i.e.

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

Modifier and Type	Method	Description
static DimensionSelector	DimensionSelector.constant(String value)
static DimensionSelector	DimensionSelector.constant(String value, ExtractionFn extractionFn)
DimensionSelector	AutoTypeColumnIndexer.makeDimensionSelector(DimensionSpec spec, IncrementalIndexRowHolder currEntry, IncrementalIndex.DimensionDesc desc)
DimensionSelector	ColumnSelectorFactory.makeDimensionSelector(DimensionSpec dimensionSpec)
DimensionSelector	DimensionIndexer.makeDimensionSelector(DimensionSpec spec, IncrementalIndexRowHolder currEntry, IncrementalIndex.DimensionDesc desc)	Return an object used to read values from this indexer's column as Strings.
DimensionSelector	DoubleDimensionIndexer.makeDimensionSelector(DimensionSpec spec, IncrementalIndexRowHolder currEntry, IncrementalIndex.DimensionDesc desc)
DimensionSelector	FloatDimensionIndexer.makeDimensionSelector(DimensionSpec spec, IncrementalIndexRowHolder currEntry, IncrementalIndex.DimensionDesc desc)
DimensionSelector	LongDimensionIndexer.makeDimensionSelector(DimensionSpec spec, IncrementalIndexRowHolder currEntry, IncrementalIndex.DimensionDesc desc)
DimensionSelector	NestedDataColumnIndexerV4.makeDimensionSelector(DimensionSpec spec, IncrementalIndexRowHolder currEntry, IncrementalIndex.DimensionDesc desc)
DimensionSelector	QueryableIndexColumnSelectorFactory.makeDimensionSelector(DimensionSpec dimensionSpec)
DimensionSelector	RowBasedColumnSelectorFactory.makeDimensionSelector(DimensionSpec dimensionSpec)
DimensionSelector	StringDimensionIndexer.makeDimensionSelector(DimensionSpec spec, IncrementalIndexRowHolder currEntry, IncrementalIndex.DimensionDesc desc)
DimensionSelector	VirtualColumn.makeDimensionSelector(DimensionSpec dimensionSpec, ColumnSelectorFactory factory)	Build a selector corresponding to this virtual column.
default DimensionSelector	VirtualColumn.makeDimensionSelector(DimensionSpec dimensionSpec, ColumnSelector columnSelector, ReadableOffset offset)	Returns similar DimensionSelector object as returned by VirtualColumn.makeDimensionSelector(DimensionSpec, ColumnSelectorFactory) except this method has full access to the underlying column and can potentially provide a more efficient implementation.
DimensionSelector	VirtualColumns.makeDimensionSelector(DimensionSpec dimensionSpec, ColumnSelectorFactory factory)	Create a dimension (string) selector.
DimensionSelector	VirtualColumns.makeDimensionSelector(DimensionSpec dimensionSpec, ColumnSelector columnSelector, ReadableOffset offset)	Try to create an optimized dimension (string) selector directly from a ColumnSelector.
static DimensionSelector	DimensionSelector.multiConstant(List<String> values)
static DimensionSelector	DimensionSelector.multiConstant(List<String> values, ExtractionFn extractionFn)
static DimensionSelector	DimensionSelector.nilSelector()

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

Modifier and Type	Method	Description
static boolean	DimensionSelector.isNilSelector(DimensionSelector selector)	Checks if the given selector constantly returns null.
T	ColumnProcessorFactory.makeDimensionProcessor(DimensionSelector selector, boolean multiValue)	Create a processor for a string column.
static BitSet	DimensionSelectorUtils.makePredicateMatchingSet(DimensionSelector selector, DruidObjectPredicate<String> predicate, boolean includeUnknown)
static ValueMatcher	DimensionSelectorUtils.makeValueMatcherGeneric(DimensionSelector selector, String value)	Generic implementation of makeValueMatcher(String), uses getRow() of the given DimensionSelector.
static ValueMatcher	DimensionSelectorUtils.makeValueMatcherGeneric(DimensionSelector selector, DruidPredicateFactory predicateFactory)	Generic implementation of makeValueMatcher(DruidPredicateFactory), uses getRow() of the given DimensionSelector.

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

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

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

Uses of DimensionSelector in org.apache.druid.segment.filter

Methods in org.apache.druid.segment.filter with parameters of type DimensionSelector

Modifier and Type	Method	Description
static ValueMatcher	ValueMatchers.makeAlwaysFalseWithNullUnknownDimensionMatcher(DimensionSelector selector, boolean multiValue)	Create a matcher that should always return false, except when includeUnknown is set, in which case only null values will be matched.
ValueMatcher	PredicateValueMatcherFactory.makeDimensionProcessor(DimensionSelector selector, boolean multiValue)
ValueMatcher	StringConstantValueMatcherFactory.makeDimensionProcessor(DimensionSelector selector, boolean multiValue)
static ValueMatcher	ValueMatchers.makeStringValueMatcher(DimensionSelector selector, String value, boolean hasMultipleValues)	Creates a constant-based ValueMatcher for a string-typed selector.
static ValueMatcher	ValueMatchers.makeStringValueMatcher(DimensionSelector selector, DruidPredicateFactory predicateFactory, boolean hasMultipleValues)	Creates a predicate-based ValueMatcher for a string-typed selector.

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

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

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

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

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

Modifier and Type	Class	Description
class	PossiblyNullDimensionSelector

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

Constructor	Description
PossiblyNullDimensionSelector(DimensionSelector baseSelector, BooleanSupplier beNull)

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

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

Modifier and Type	Method	Description
DimensionSelector	AllNullColumnSelectorFactory.makeDimensionSelector(DimensionSpec dimensionSpec)

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

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

Modifier and Type	Method	Description
DimensionSelector	LookupColumnSelectorFactory.makeDimensionSelector(DimensionSpec dimensionSpec)

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

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

Modifier and Type	Class	Description
class	IndexedTableDimensionSelector

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

Modifier and Type	Method	Description
DimensionSelector	IndexedTableColumnSelectorFactory.makeDimensionSelector(DimensionSpec dimensionSpec)

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

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

Modifier and Type	Method	Description
DimensionSelector	CompressedNestedDataComplexColumn.makeDimensionSelector(List<NestedPathPart> path, ReadableOffset readableOffset, ExtractionFn fn)
abstract DimensionSelector	NestedDataComplexColumn.makeDimensionSelector(List<NestedPathPart> path, ReadableOffset readableOffset, ExtractionFn fn)	Make a DimensionSelector for a nested field column
DimensionSelector	NestedFieldDictionaryEncodedColumn.makeDimensionSelector(ReadableOffset offset, ExtractionFn extractionFn)
DimensionSelector	VariantColumn.makeDimensionSelector(ReadableOffset offset, ExtractionFn extractionFn)

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

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

Modifier and Type	Class	Description
class	SettableDimensionValueSelector	Settable implementation of DimensionSelector.

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

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

Modifier and Type	Class	Description
class	ExpressionMultiValueDimensionSelector	Basic multi-value dimension selector for an Expr evaluating ColumnValueSelector.
static class	NestedFieldVirtualColumn.FieldDimensionSelector
class	SingleStringInputDeferredEvaluationExpressionDimensionSelector	A DimensionSelector decorator that directly exposes the underlying dictionary id in SingleStringInputDeferredEvaluationExpressionDimensionSelector.getRow(), saving expression computation until SingleStringInputDeferredEvaluationExpressionDimensionSelector.lookupName(int) is called.

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

Modifier and Type	Method	Description
static DimensionSelector	ExpressionSelectors.makeDimensionSelector(ColumnSelectorFactory columnSelectorFactory, Expr expression, ExtractionFn extractionFn)	Makes a single or multi-value DimensionSelector wrapper around a ColumnValueSelector created by ExpressionSelectors.makeExprEvalSelector(ColumnSelectorFactory, Expr) as appropriate
DimensionSelector	ExpressionVirtualColumn.makeDimensionSelector(DimensionSpec dimensionSpec, ColumnSelectorFactory columnSelectorFactory)
DimensionSelector	FallbackVirtualColumn.makeDimensionSelector(DimensionSpec dimensionSpec, ColumnSelectorFactory factory)
DimensionSelector	ListFilteredVirtualColumn.makeDimensionSelector(DimensionSpec dimensionSpec, ColumnSelectorFactory factory)
DimensionSelector	NestedFieldVirtualColumn.makeDimensionSelector(DimensionSpec dimensionSpec, ColumnSelectorFactory factory)
DimensionSelector	NestedFieldVirtualColumn.makeDimensionSelector(DimensionSpec dimensionSpec, ColumnSelector columnSelector, ReadableOffset offset)
DimensionSelector	VirtualizedColumnSelectorFactory.makeDimensionSelector(DimensionSpec dimensionSpec)

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

Constructor	Description
SingleStringInputCachingExpressionColumnValueSelector(DimensionSelector selector, Expr expression, RowIdSupplier rowIdSupplier)
SingleStringInputDeferredEvaluationExpressionDimensionSelector(DimensionSelector selector, Expr expression)