Package org.apache.druid.segment.nested

Class NestedFieldDictionaryEncodedColumn<TStringDictionary extends Indexed<ByteBuffer>>

java.lang.Object

org.apache.druid.segment.nested.NestedFieldDictionaryEncodedColumn<TStringDictionary>

All Implemented Interfaces:

Closeable, AutoCloseable, BaseColumn, DictionaryEncodedColumn<String>

public class NestedFieldDictionaryEncodedColumn<TStringDictionary extends Indexed<ByteBuffer>>
extends Object
implements DictionaryEncodedColumn<String>

Constructor Summary

Constructors

Constructor	Description
NestedFieldDictionaryEncodedColumn(FieldTypeInfo.TypeSet types, ColumnarLongs longsColumn, ColumnarDoubles doublesColumn, ColumnarInts column, TStringDictionary globalDictionary, FixedIndexed<Long> globalLongDictionary, FixedIndexed<Double> globalDoubleDictionary, FrontCodedIntArrayIndexed globalArrayDictionary, FixedIndexed<Integer> dictionary, ImmutableBitmap nullBitmap)

Method Summary

Modifier and Type	Method	Description
void	close()
int	getCardinality()
FixedIndexed<Integer>	getDictionary()
IndexedInts	getMultiValueRow(int rowNum)
int	getSingleValueRow(int rowNum)
boolean	hasMultipleValues()
int	length()
int	lookupId(String name)
String	lookupName(int id)
ColumnValueSelector<?>	makeColumnValueSelector(ReadableOffset offset)
DimensionSelector	makeDimensionSelector(ReadableOffset offset, ExtractionFn extractionFn)
MultiValueDimensionVectorSelector	makeMultiValueDimensionVectorSelector(ReadableVectorOffset vectorOffset)
SingleValueDimensionVectorSelector	makeSingleValueDimensionVectorSelector(ReadableVectorOffset offset)
VectorObjectSelector	makeVectorObjectSelector(ReadableVectorOffset offset)
VectorValueSelector	makeVectorValueSelector(ReadableVectorOffset offset)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

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

as

Constructor Detail

NestedFieldDictionaryEncodedColumn

public NestedFieldDictionaryEncodedColumn(FieldTypeInfo.TypeSet types,
                                          ColumnarLongs longsColumn,
                                          ColumnarDoubles doublesColumn,
                                          ColumnarInts column,
                                          TStringDictionary globalDictionary,
                                          FixedIndexed<Long> globalLongDictionary,
                                          FixedIndexed<Double> globalDoubleDictionary,
                                          @Nullable
                                          FrontCodedIntArrayIndexed globalArrayDictionary,
                                          FixedIndexed<Integer> dictionary,
                                          ImmutableBitmap nullBitmap)

Method Detail

length

public int length()

Specified by:

length in interface DictionaryEncodedColumn<TStringDictionary extends Indexed<ByteBuffer>>

hasMultipleValues

public boolean hasMultipleValues()

Specified by:

hasMultipleValues in interface DictionaryEncodedColumn<TStringDictionary extends Indexed<ByteBuffer>>

getSingleValueRow

public int getSingleValueRow(int rowNum)

Specified by:

getSingleValueRow in interface DictionaryEncodedColumn<TStringDictionary extends Indexed<ByteBuffer>>

getMultiValueRow

public IndexedInts getMultiValueRow(int rowNum)

Specified by:

getMultiValueRow in interface DictionaryEncodedColumn<TStringDictionary extends Indexed<ByteBuffer>>

lookupName

@Nullable
public String lookupName(int id)

Specified by:

lookupName in interface DictionaryEncodedColumn<TStringDictionary extends Indexed<ByteBuffer>>

lookupId

public int lookupId(String name)

Specified by:

lookupId in interface DictionaryEncodedColumn<TStringDictionary extends Indexed<ByteBuffer>>

getCardinality

public int getCardinality()

Specified by:

getCardinality in interface DictionaryEncodedColumn<TStringDictionary extends Indexed<ByteBuffer>>

getDictionary

public FixedIndexed<Integer> getDictionary()

makeDimensionSelector

public DimensionSelector makeDimensionSelector(ReadableOffset offset,
                                               @Nullable
                                               ExtractionFn extractionFn)

Specified by:

makeDimensionSelector in interface DictionaryEncodedColumn<TStringDictionary extends Indexed<ByteBuffer>>

makeColumnValueSelector

public ColumnValueSelector<?> makeColumnValueSelector(ReadableOffset offset)

Specified by:

makeColumnValueSelector in interface BaseColumn

Specified by:

makeColumnValueSelector in interface DictionaryEncodedColumn<TStringDictionary extends Indexed<ByteBuffer>>

makeSingleValueDimensionVectorSelector

public SingleValueDimensionVectorSelector makeSingleValueDimensionVectorSelector(ReadableVectorOffset offset)

Specified by:

makeSingleValueDimensionVectorSelector in interface DictionaryEncodedColumn<TStringDictionary extends Indexed<ByteBuffer>>

makeMultiValueDimensionVectorSelector

public MultiValueDimensionVectorSelector makeMultiValueDimensionVectorSelector(ReadableVectorOffset vectorOffset)

Specified by:

makeMultiValueDimensionVectorSelector in interface DictionaryEncodedColumn<TStringDictionary extends Indexed<ByteBuffer>>

makeVectorObjectSelector

public VectorObjectSelector makeVectorObjectSelector(ReadableVectorOffset offset)

Specified by:

makeVectorObjectSelector in interface BaseColumn

makeVectorValueSelector

public VectorValueSelector makeVectorValueSelector(ReadableVectorOffset offset)

Specified by:

makeVectorValueSelector in interface BaseColumn

close

public void close()
           throws IOException

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable

Throws:

IOException