Package org.apache.lucene.backward_codecs.lucene99

Class OffHeapQuantizedByteVectorValues

java.lang.Object

org.apache.lucene.index.KnnVectorValues

org.apache.lucene.index.ByteVectorValues

org.apache.lucene.util.quantization.QuantizedByteVectorValues

org.apache.lucene.backward_codecs.lucene99.OffHeapQuantizedByteVectorValues

All Implemented Interfaces:

HasIndexSlice

Direct Known Subclasses:

OffHeapQuantizedByteVectorValues.DenseOffHeapVectorValues

public abstract class OffHeapQuantizedByteVectorValues
extends QuantizedByteVectorValues

Read the quantized vector values and their score correction values from the index input. This supports both iterated and random access.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	OffHeapQuantizedByteVectorValues.DenseOffHeapVectorValues	Dense vector values that are stored off-heap.

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

KnnVectorValues.DocIndexIterator

Method Summary

Modifier and Type	Method	Description
int	dimension()
ScalarQuantizer	getScalarQuantizer()
float	getScoreCorrectionConstant(int targetOrd)
IndexInput	getSlice()
int	getVectorByteLength()
int	size()
byte[]	vectorValue(int targetOrd)

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

copy, scorer

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

checkField, fromBytes, getEncoding, rescorer, scorer

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

createDenseIterator, createSparseIterator, fromDISI, getAcceptOrds, iterator, ordToDoc

Methods inherited from class java.lang.Object

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

Method Details

getScalarQuantizer

public ScalarQuantizer getScalarQuantizer()

Overrides:

getScalarQuantizer in class QuantizedByteVectorValues

dimension

public int dimension()

Specified by:

dimension in class KnnVectorValues

size

public int size()

Specified by:

size in class KnnVectorValues

vectorValue

public byte[] vectorValue(int targetOrd)
                   throws IOException

Specified by:

vectorValue in class ByteVectorValues

Throws:

IOException

getScoreCorrectionConstant

public float getScoreCorrectionConstant(int targetOrd)
                                 throws IOException

Specified by:

getScoreCorrectionConstant in class QuantizedByteVectorValues

Throws:

IOException

getSlice

public IndexInput getSlice()

Specified by:

getSlice in interface HasIndexSlice

Overrides:

getSlice in class QuantizedByteVectorValues

getVectorByteLength

public int getVectorByteLength()

Overrides:

getVectorByteLength in class KnnVectorValues