DictionaryEncodedColumn (druid-processing 35.0.1 API)

All Superinterfaces:: AutoCloseable, BaseColumn, Closeable, SelectableColumn

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

Methods inherited from interface org.apache.druid.segment.column.SelectableColumn
as

Method Details
- 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)