Package org.apache.druid.segment.column

Interface BitmapIndexType.Writer

All Superinterfaces:

Serializer

Enclosing class:

BitmapIndexType

public static interface BitmapIndexType.Writer
extends Serializer

Interface to serialize bitmap index.

Method Summary

Modifier and Type	Method	Description
void	add(int row, int sortedId, Object o)	Update the bitmaps on the heap accordingly.
void	finalizeWriter(BitmapFactory bitmapFactory)	Writes the bitmaps to writer, and free up heap memory for bitmaps.
void	init(BitmapFactory bitmapFactory, int dictionarySize)	Creates mutable bitmaps on the heap.
void	openWriter(SegmentWriteOutMedium writeoutMedium, String columnName, ObjectStrategy<ImmutableBitmap> objectStrategy)	Creates a new writer, and prepares the writer for writing.

Methods inherited from interface org.apache.druid.segment.serde.Serializer

getSerializedSize, writeTo

Method Details

openWriter

void openWriter(SegmentWriteOutMedium writeoutMedium,
 String columnName,
 ObjectStrategy<ImmutableBitmap> objectStrategy)
         throws IOException

Creates a new writer, and prepares the writer for writing.

Throws:

IOException

init

void init(BitmapFactory bitmapFactory,
 int dictionarySize)

Creates mutable bitmaps on the heap.

add

void add(int row,
 int sortedId,
 @Nullable
 Object o)

Update the bitmaps on the heap accordingly.

finalizeWriter

void finalizeWriter(BitmapFactory bitmapFactory)
             throws IOException

Writes the bitmaps to writer, and free up heap memory for bitmaps.

Throws:

IOException