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

Packages that use ColumnInspector

Package	Description
org.apache.druid.frame.key
org.apache.druid.frame.processor
org.apache.druid.frame.segment.columnar
org.apache.druid.frame.segment.row
org.apache.druid.query.aggregation
org.apache.druid.query.aggregation.any
org.apache.druid.query.aggregation.cardinality
org.apache.druid.query.aggregation.firstlast.first
org.apache.druid.query.aggregation.firstlast.last
org.apache.druid.query.aggregation.hyperloglog
org.apache.druid.query.aggregation.mean
org.apache.druid.query.aggregation.post
org.apache.druid.query.filter
org.apache.druid.query.groupby
org.apache.druid.query.groupby.epinephelinae.vector
org.apache.druid.query.rowsandcols.semantic
org.apache.druid.query.scan
org.apache.druid.query.topn
org.apache.druid.segment
org.apache.druid.segment.column
org.apache.druid.segment.filter
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.shim
org.apache.druid.segment.vector
org.apache.druid.segment.virtual

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

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

Modifier and Type	Method	Description
RowKeyReader	ClusterBy.keyReader(ColumnInspector inspector, FrameType frameType)	Create a reader for keys for this instance.

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

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

Modifier and Type	Class	Description
class	MultiColumnSelectorFactory	A ColumnSelectorFactory that wraps multiple ColumnSelectorFactory and delegates to one of them at any given time.

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

Classes in org.apache.druid.frame.segment.columnar that implement ColumnInspector

Modifier and Type	Class	Description
class	ColumnarFrameCursorFactory	A CursorFactory implementation based on a single columnar Frame.
class	FrameQueryableIndex	A QueryableIndex implementation based on a single columnar Frame.

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

Classes in org.apache.druid.frame.segment.row that implement ColumnInspector

Modifier and Type	Class	Description
class	FrameColumnSelectorFactory
class	RowFrameCursorFactory	A CursorFactory implementation based on a single row-based Frame.

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

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

Modifier and Type	Method	Description
boolean	AggregatorFactory.canVectorize(ColumnInspector columnInspector)	Returns whether or not this aggregation class supports vectorization.
static boolean	AggregatorUtil.canVectorize(ColumnInspector columnInspector, String fieldName, String expression, com.google.common.base.Supplier<Expr> fieldExpression)
boolean	CountAggregatorFactory.canVectorize(ColumnInspector columnInspector)
boolean	FilteredAggregatorFactory.canVectorize(ColumnInspector columnInspector)
boolean	GroupingAggregatorFactory.canVectorize(ColumnInspector columnInspector)
boolean	SimpleDoubleAggregatorFactory.canVectorize(ColumnInspector columnInspector)
boolean	SimpleFloatAggregatorFactory.canVectorize(ColumnInspector columnInspector)
boolean	SimpleLongAggregatorFactory.canVectorize(ColumnInspector columnInspector)
boolean	SuppressedAggregatorFactory.canVectorize(ColumnInspector columnInspector)
default ColumnType	PostAggregator.getType(ColumnInspector signature)	Return the output type of a row processed with this post aggregator.

Uses of ColumnInspector in org.apache.druid.query.aggregation.any

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

Modifier and Type	Method	Description
boolean	DoubleAnyAggregatorFactory.canVectorize(ColumnInspector columnInspector)
boolean	FloatAnyAggregatorFactory.canVectorize(ColumnInspector columnInspector)
boolean	LongAnyAggregatorFactory.canVectorize(ColumnInspector columnInspector)
boolean	StringAnyAggregatorFactory.canVectorize(ColumnInspector columnInspector)

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

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

Modifier and Type	Method	Description
boolean	CardinalityAggregatorFactory.canVectorize(ColumnInspector columnInspector)

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

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

Modifier and Type	Method	Description
boolean	DoubleFirstAggregatorFactory.canVectorize(ColumnInspector columnInspector)
boolean	FloatFirstAggregatorFactory.canVectorize(ColumnInspector columnInspector)
boolean	LongFirstAggregatorFactory.canVectorize(ColumnInspector columnInspector)
boolean	StringFirstAggregatorFactory.canVectorize(ColumnInspector columnInspector)

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

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

Modifier and Type	Method	Description
boolean	DoubleLastAggregatorFactory.canVectorize(ColumnInspector columnInspector)
boolean	FloatLastAggregatorFactory.canVectorize(ColumnInspector columnInspector)
boolean	LongLastAggregatorFactory.canVectorize(ColumnInspector columnInspector)
boolean	StringLastAggregatorFactory.canVectorize(ColumnInspector columnInspector)

Uses of ColumnInspector in org.apache.druid.query.aggregation.hyperloglog

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

Modifier and Type	Method	Description
boolean	HyperUniquesAggregatorFactory.canVectorize(ColumnInspector columnInspector)
ColumnType	HyperUniqueFinalizingPostAggregator.getType(ColumnInspector signature)

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

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

Modifier and Type	Method	Description
boolean	DoubleMeanAggregatorFactory.canVectorize(ColumnInspector columnInspector)

Uses of ColumnInspector in org.apache.druid.query.aggregation.post

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

Modifier and Type	Method	Description
ColumnType	ArithmeticPostAggregator.getType(ColumnInspector signature)
ColumnType	ConstantPostAggregator.getType(ColumnInspector signature)
ColumnType	DoubleGreatestPostAggregator.getType(ColumnInspector signature)
ColumnType	DoubleLeastPostAggregator.getType(ColumnInspector signature)
ColumnType	ExpressionPostAggregator.getType(ColumnInspector signature)
ColumnType	FieldAccessPostAggregator.getType(ColumnInspector signature)
ColumnType	FinalizingFieldAccessPostAggregator.getType(ColumnInspector signature)
ColumnType	JavaScriptPostAggregator.getType(ColumnInspector signature)
ColumnType	LongGreatestPostAggregator.getType(ColumnInspector signature)
ColumnType	LongLeastPostAggregator.getType(ColumnInspector signature)

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

Subinterfaces of ColumnInspector in org.apache.druid.query.filter

Modifier and Type	Interface	Description
interface	ColumnIndexSelector

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

Modifier and Type	Method	Description
boolean	ArrayContainsElementFilter.canVectorizeMatcher(ColumnInspector inspector)
boolean	EqualityFilter.canVectorizeMatcher(ColumnInspector inspector)
default boolean	Filter.canVectorizeMatcher(ColumnInspector inspector)	Returns true if this filter can produce a vectorized matcher from its "makeVectorMatcher" method.
boolean	InDimFilter.canVectorizeMatcher(ColumnInspector inspector)
boolean	NullFilter.canVectorizeMatcher(ColumnInspector inspector)
boolean	RangeFilter.canVectorizeMatcher(ColumnInspector inspector)
boolean	TypedInFilter.canVectorizeMatcher(ColumnInspector inspector)

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

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

Modifier and Type	Method	Description
static int	GroupingEngine.getCardinalityForArrayAggregation(GroupByQueryConfig querySpecificConfig, GroupByQuery query, ColumnInspector columnInspector, List<? extends GroupingSelector> groupingSelectors, ByteBuffer buffer)	Returns the cardinality of array needed to do array-based aggregation, or -1 if array-based aggregation is impossible.
abstract boolean	DeferExpressionDimensions.useDeferredGroupBySelector(ExpressionPlan plan, List<String> requiredBindingsList, ColumnInspector inspector)

Uses of ColumnInspector in org.apache.druid.query.groupby.epinephelinae.vector

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

Modifier and Type	Method	Description
static boolean	VectorGroupByEngine.canVectorizeDimensions(ColumnInspector inspector, List<DimensionSpec> dimensions)

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

Classes in org.apache.druid.query.rowsandcols.semantic that implement ColumnInspector

Modifier and Type	Class	Description
static class	DefaultColumnSelectorFactoryMaker.ColumnAccessorBasedColumnSelectorFactory

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

Classes in org.apache.druid.query.scan that implement ColumnInspector

Modifier and Type	Class	Description
class	SettableCursorColumnSelectorFactory	A column selector factory, that represents the column values from multiple underlying cursors.

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

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

Modifier and Type	Method	Description
ColumnInspector	TopNCursorInspector.getColumnInspector()

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

Modifier	Constructor	Description
	TopNCursorInspector(ColumnInspector columnInspector, TopNOptimizationInspector topNOptimizationInspector, org.joda.time.Interval dataInterval, int dimensionCardinality)

Uses of ColumnInspector in org.apache.druid.segment

Subinterfaces of ColumnInspector in org.apache.druid.segment

Modifier and Type	Interface	Description
interface	ColumnSelector
interface	ColumnSelectorFactory	Factory class for MetricSelectors
interface	CursorFactory
interface	PhysicalSegmentInspector	Interface for methods describing physical segments such as QueryableIndexSegment and IncrementalIndexSegment that is not typically used at query time (outside of metadata queries).
interface	QueryableIndex	Direct interface to memory mapped segments.

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

Modifier and Type	Class	Description
class	ColumnCache	Wraps QueryableIndex and VirtualColumns, providing a unified view of physical and virtual columns, as well as lifecycle management for physical columns.
class	FilteredCursorFactory
class	NoopQueryableIndex	A no-op implementation of QueryableIndex.
class	QueryableIndexColumnSelectorFactory	The basic implementation of ColumnSelectorFactory over a historical segment (i.
class	QueryableIndexCursorFactory
class	QueryableIndexPhysicalSegmentInspector
class	RemapColumnSelectorFactory
class	RestrictedCursorFactory	A factory class for creating Cursor instances with strict adherence to Policy restrictions.
class	RowBasedColumnSelectorFactory<T>	A ColumnSelectorFactory that is based on an object supplier and a RowAdapter for that type of object.
class	RowBasedCursorFactory<RowType>
class	SimpleQueryableIndex
class	UnnestCursorFactory

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

Modifier and Type	Method	Description
ColumnInspector	VirtualColumns.wrapInspector(ColumnInspector inspector)	Creates a VirtualizedColumnInspector that provides ColumnCapabilities information for all VirtualColumns.virtualColumns in addition to the capabilities of all physical columns in the underlying inspector.

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

Modifier and Type	Method	Description
default boolean	VirtualColumn.canVectorize(ColumnInspector inspector)
boolean	VirtualColumns.canVectorize(ColumnInspector columnInspector)
default ColumnCapabilities	VirtualColumn.capabilities(ColumnInspector inspector, String columnName)	Return the ColumnCapabilities which best describe the optimal selector to read from this virtual column.
static <RowType> RowBasedColumnSelectorFactory<RowType>	RowBasedColumnSelectorFactory.create(RowAdapter<RowType> adapter, Supplier<RowType> supplier, ColumnInspector columnInspector, boolean throwParseExceptions)	Create an instance based on any object, along with a RowAdapter for that object.
ColumnCapabilities	VirtualColumns.getColumnCapabilitiesWithFallback(ColumnInspector inspector, String columnName)	Get capabilities for the column "columnName".
ColumnInspector	VirtualColumns.wrapInspector(ColumnInspector inspector)	Creates a VirtualizedColumnInspector that provides ColumnCapabilities information for all VirtualColumns.virtualColumns in addition to the capabilities of all physical columns in the underlying inspector.

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

Modifier	Constructor	Description
	RowBasedColumnSelectorFactory(Supplier<T> rowSupplier, RowIdSupplier rowIdSupplier, RowAdapter<T> adapter, ColumnInspector columnInspector, boolean throwParseExceptions)	Full constructor for RowBasedCursor.

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

Classes in org.apache.druid.segment.column that implement ColumnInspector

Modifier and Type	Class	Description
class	RowSignature	Type signature for a row in a Druid datasource or query result.

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

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

Modifier and Type	Method	Description
boolean	AndFilter.canVectorizeMatcher(ColumnInspector inspector)
boolean	BoundFilter.canVectorizeMatcher(ColumnInspector inspector)
boolean	DimensionPredicateFilter.canVectorizeMatcher(ColumnInspector inspector)
boolean	ExpressionFilter.canVectorizeMatcher(ColumnInspector inspector)
boolean	FalseFilter.canVectorizeMatcher(ColumnInspector inspector)
boolean	IsBooleanFilter.canVectorizeMatcher(ColumnInspector inspector)
boolean	JavaScriptFilter.canVectorizeMatcher(ColumnInspector inspector)
boolean	LikeFilter.canVectorizeMatcher(ColumnInspector inspector)
boolean	NotFilter.canVectorizeMatcher(ColumnInspector inspector)
boolean	OrFilter.canVectorizeMatcher(ColumnInspector inspector)
boolean	SelectorFilter.canVectorizeMatcher(ColumnInspector inspector)
boolean	SpatialFilter.canVectorizeMatcher(ColumnInspector inspector)
boolean	TrueFilter.canVectorizeMatcher(ColumnInspector inspector)

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

Subinterfaces of ColumnInspector in org.apache.druid.segment.incremental

Modifier and Type	Interface	Description
interface	IncrementalIndexRowSelector	Interface that abstracts selecting data from a FactsHolder

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

Modifier and Type	Class	Description
class	IncrementalIndex	In-memory, row-based data structure used to hold data during ingestion.
class	IncrementalIndexCursorFactory
class	IncrementalIndexPhysicalSegmentInspector
class	OnHeapAggregateProjection	Projection of OnheapIncrementalIndex for AggregateProjectionSpec
class	OnheapIncrementalIndex

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

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

Modifier and Type	Class	Description
class	HashJoinSegmentCursorFactory

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

Classes in org.apache.druid.segment.join.filter that implement ColumnInspector

Modifier and Type	Class	Description
class	AllNullColumnSelectorFactory

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

Classes in org.apache.druid.segment.join.lookup that implement ColumnInspector

Modifier and Type	Class	Description
class	LookupColumnSelectorFactory

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

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

Modifier and Type	Class	Description
class	IndexedTableColumnSelectorFactory

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

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

Modifier and Type	Class	Description
class	ShimColumnSelectorFactory	Implementation of ColumnSelectorFactory for ShimCursor.

Uses of ColumnInspector in org.apache.druid.segment.vector

Subinterfaces of ColumnInspector in org.apache.druid.segment.vector

Modifier and Type	Interface	Description
interface	VectorColumnSelectorFactory	A class that comes from VectorCursor.getColumnSelectorFactory() and is used to create vector selectors.

Classes in org.apache.druid.segment.vector that implement ColumnInspector

Modifier and Type	Class	Description
class	QueryableIndexVectorColumnSelectorFactory
class	RemapVectorColumnSelectorFactory

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

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

Modifier and Type	Class	Description
class	VirtualizedColumnInspector	Provides ColumnCapabilities for both virtual and non-virtual columns by building on top of another base ColumnInspector.
class	VirtualizedColumnSelectorFactory	ColumnSelectorFactory which can create selectors for both virtual and non-virtual columns

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

Modifier and Type	Field	Description
protected final ColumnInspector	VirtualizedColumnInspector.baseInspector

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

Modifier and Type	Method	Description
boolean	ExpressionVirtualColumn.canVectorize(ColumnInspector inspector)
boolean	FallbackVirtualColumn.canVectorize(ColumnInspector inspector)
boolean	NestedFieldVirtualColumn.canVectorize(ColumnInspector inspector)
boolean	SpecializedExpressionVirtualColumn.canVectorize(ColumnInspector inspector)
ColumnCapabilities	ExpressionVirtualColumn.capabilities(ColumnInspector inspector, String columnName)
ColumnCapabilities	FallbackVirtualColumn.capabilities(ColumnInspector inspector, String columnName)
ColumnCapabilities	ListFilteredVirtualColumn.capabilities(ColumnInspector inspector, String columnName)
ColumnCapabilities	NestedFieldVirtualColumn.capabilities(ColumnInspector inspector, String columnName)
ColumnCapabilities	PrefixFilteredVirtualColumn.capabilities(ColumnInspector inspector, String columnName)
ColumnCapabilities	RegexFilteredVirtualColumn.capabilities(ColumnInspector inspector, String columnName)
ColumnCapabilities	SpecializedExpressionVirtualColumn.capabilities(ColumnInspector inspector, String columnName)
static ExpressionPlan	ExpressionPlanner.plan(ColumnInspector inspector, Expr expression)	Druid tries to be chill to expressions to make up for not having a well defined table schema across segments.

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

Modifier	Constructor	Description
	VirtualizedColumnInspector(ColumnInspector baseInspector, VirtualColumns virtualColumns)