Package org.apache.druid.segment.column

Interface DictionaryEncodedColumn<ActualType extends Comparable<? super ActualType>>

All Superinterfaces:

AutoCloseable, BaseColumn, Closeable

All Known Implementing Classes:

NestedFieldDictionaryEncodedColumn, StringUtf8DictionaryEncodedColumn, VariantColumn

public interface DictionaryEncodedColumn<ActualType extends Comparable<? super ActualType>>
extends BaseColumn

Method Summary

Modifier and Type	Method	Description
int	getCardinality()
IndexedInts	getMultiValueRow(int rowNum)
int	getSingleValueRow(int rowNum)
boolean	hasMultipleValues()
int	length()
int	lookupId(ActualType name)
ActualType	lookupName(int id)
default ColumnValueSelector<?>	makeColumnValueSelector(ReadableOffset offset)
DimensionSelector	makeDimensionSelector(ReadableOffset offset, ExtractionFn extractionFn)
MultiValueDimensionVectorSelector	makeMultiValueDimensionVectorSelector(ReadableVectorOffset vectorOffset)
SingleValueDimensionVectorSelector	makeSingleValueDimensionVectorSelector(ReadableVectorOffset vectorOffset)

Methods inherited from interface org.apache.druid.segment.column.BaseColumn

makeVectorObjectSelector, makeVectorValueSelector

Methods inherited from interface java.io.Closeable

close

Method Detail

length

int length()

hasMultipleValues

boolean hasMultipleValues()

getSingleValueRow

int getSingleValueRow(int rowNum)

getMultiValueRow

IndexedInts getMultiValueRow(int rowNum)

lookupName

@Nullable
ActualType lookupName(int id)

lookupId

int lookupId(ActualType name)

getCardinality

int getCardinality()

makeDimensionSelector

DimensionSelector makeDimensionSelector(ReadableOffset offset,
                                        @Nullable
                                        ExtractionFn extractionFn)

makeColumnValueSelector

default ColumnValueSelector<?> makeColumnValueSelector(ReadableOffset offset)

Specified by:

makeColumnValueSelector in interface BaseColumn

makeSingleValueDimensionVectorSelector

SingleValueDimensionVectorSelector makeSingleValueDimensionVectorSelector(ReadableVectorOffset vectorOffset)

makeMultiValueDimensionVectorSelector

MultiValueDimensionVectorSelector makeMultiValueDimensionVectorSelector(ReadableVectorOffset vectorOffset)