Package org.apache.lucene.util.quantization

Class LegacyQuantizedByteVectorValues

java.lang.Object

org.apache.lucene.index.KnnVectorValues

org.apache.lucene.index.ByteVectorValues

org.apache.lucene.util.quantization.BaseQuantizedByteVectorValues

org.apache.lucene.util.quantization.LegacyQuantizedByteVectorValues

All Implemented Interfaces:

HasIndexSlice

public abstract class LegacyQuantizedByteVectorValues
extends BaseQuantizedByteVectorValues

A version of BaseQuantizedByteVectorValues, but additionally retrieving score correction offset for Scalar quantization scores.

WARNING: This API is experimental and might change in incompatible ways in the next release.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.lucene.index.KnnVectorValues

KnnVectorValues.DocIndexIterator

Constructor Summary

Constructors

Constructor	Description
LegacyQuantizedByteVectorValues()

Method Summary

Modifier and Type	Method	Description
LegacyQuantizedByteVectorValues	copy()	Creates a new copy of this KnnVectorValues.
ScalarQuantizer	getScalarQuantizer()
abstract float	getScoreCorrectionConstant(int ord)

Methods inherited from class org.apache.lucene.util.quantization.BaseQuantizedByteVectorValues

getSlice, scorer

Methods inherited from class org.apache.lucene.index.ByteVectorValues

checkField, fromBytes, getEncoding, rescorer, scorer, vectorValue

Methods inherited from class org.apache.lucene.index.KnnVectorValues

createDenseIterator, createSparseIterator, dimension, fromDISI, getAcceptOrds, getVectorByteLength, iterator, ordToDoc, prefetch, size

Methods inherited from class java.lang.Object

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

Constructor Details

LegacyQuantizedByteVectorValues

public LegacyQuantizedByteVectorValues()

Method Details

getScalarQuantizer

public ScalarQuantizer getScalarQuantizer()

getScoreCorrectionConstant

public abstract float getScoreCorrectionConstant(int ord)
                                          throws IOException

Throws:

IOException

copy

public LegacyQuantizedByteVectorValues copy()
                                     throws IOException

Description copied from class: KnnVectorValues

Creates a new copy of this KnnVectorValues. This is helpful when you need to access different values at once, to avoid overwriting the underlying vector returned.

Specified by:

copy in class ByteVectorValues

Throws:

IOException