Module org.apache.lucene.core

Package org.apache.lucene.codecs.lucene99

Class Lucene99ScalarQuantizedVectorsWriter.FieldWriter

java.lang.Object

org.apache.lucene.codecs.KnnFieldVectorsWriter<float[]>

org.apache.lucene.codecs.FlatFieldVectorsWriter<float[]>

org.apache.lucene.codecs.lucene99.Lucene99ScalarQuantizedVectorsWriter.FieldWriter

All Implemented Interfaces:

Accountable

Enclosing class:

Lucene99ScalarQuantizedVectorsWriter

static class Lucene99ScalarQuantizedVectorsWriter.FieldWriter
extends FlatFieldVectorsWriter<float[]>

Field Summary

Fields

Modifier and Type	Field	Description
private final float	confidenceInterval
private final DocsWithFieldSet	docsWithField
private final FieldInfo	fieldInfo
private boolean	finished
private final List<float[]>	floatVectors
private final InfoStream	infoStream
private float	maxQuantile
private float	minQuantile
private final boolean	normalize
private static final long	SHALLOW_SIZE

Fields inherited from class org.apache.lucene.codecs.FlatFieldVectorsWriter

indexingDelegate

Fields inherited from interface org.apache.lucene.util.Accountable

NULL_ACCOUNTABLE

Constructor Summary

Constructors

Constructor	Description
FieldWriter(float confidenceInterval, FieldInfo fieldInfo, InfoStream infoStream, KnnFieldVectorsWriter<?> indexWriter)

Method Summary

Modifier and Type	Method	Description
void	addValue(int docID, float[] vectorValue)	Add new docID with its vector value to the given field for indexing.
float[]	copyValue(float[] vectorValue)	Used to copy values being indexed to internal storage.
(package private) ScalarQuantizer	createQuantizer()
(package private) void	finish()
long	ramBytesUsed()	Return the memory usage of this object in bytes.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.lucene.util.Accountable

getChildResources

Field Details

SHALLOW_SIZE

private static final long SHALLOW_SIZE

floatVectors

private final List<float[]> floatVectors

fieldInfo

private final FieldInfo fieldInfo

confidenceInterval

private final float confidenceInterval

infoStream

private final InfoStream infoStream

normalize

private final boolean normalize

minQuantile

private float minQuantile

maxQuantile

private float maxQuantile

finished

private boolean finished

docsWithField

private final DocsWithFieldSet docsWithField

Constructor Details

FieldWriter

FieldWriter(float confidenceInterval,
 FieldInfo fieldInfo,
 InfoStream infoStream,
 KnnFieldVectorsWriter<?> indexWriter)

Method Details

finish

void finish()
     throws IOException

Throws:

IOException

createQuantizer

ScalarQuantizer createQuantizer()

ramBytesUsed

public long ramBytesUsed()

Description copied from interface: Accountable

Return the memory usage of this object in bytes. Negative values are illegal.

addValue

public void addValue(int docID,
 float[] vectorValue)
              throws IOException

Description copied from class: KnnFieldVectorsWriter

Add new docID with its vector value to the given field for indexing. Doc IDs must be added in increasing order.

Specified by:

addValue in class KnnFieldVectorsWriter<float[]>

Throws:

IOException

copyValue

public float[] copyValue(float[] vectorValue)

Description copied from class: KnnFieldVectorsWriter

Used to copy values being indexed to internal storage.

Specified by:

copyValue in class KnnFieldVectorsWriter<float[]>

Parameters:

vectorValue - an array containing the vector value to add

Returns:

a copy of the value; a new array