Package org.apache.lucene.backward_codecs.lucene99

Class Lucene99ScalarQuantizedVectorsReader

java.lang.Object

org.apache.lucene.codecs.KnnVectorsReader

org.apache.lucene.codecs.hnsw.FlatVectorsReader

org.apache.lucene.backward_codecs.lucene99.Lucene99ScalarQuantizedVectorsReader

All Implemented Interfaces:

Closeable, AutoCloseable, Accountable, QuantizedVectorsReader

public final class Lucene99ScalarQuantizedVectorsReader
extends FlatVectorsReader
implements QuantizedVectorsReader

Reads Scalar Quantized vectors from the index segments along with index data structures.

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

Field Summary

Fields inherited from class org.apache.lucene.codecs.hnsw.FlatVectorsReader

vectorScorer

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

NULL_ACCOUNTABLE

Constructor Summary

Constructors

Constructor	Description
Lucene99ScalarQuantizedVectorsReader(SegmentReadState state, FlatVectorsReader rawVectorsReader, FlatVectorsScorer scorer)	Sole constructor

Method Summary

Modifier and Type	Method	Description
void	checkIntegrity()
void	close()
ByteVectorValues	getByteVectorValues(String field)
FloatVectorValues	getFloatVectorValues(String field)
Map<String,Long>	getOffHeapByteSize(FieldInfo fieldInfo)
ScalarQuantizer	getQuantizationState(String field)
QuantizedByteVectorValues	getQuantizedVectorValues(String field)
RandomVectorScorer	getRandomVectorScorer(String field, byte[] target)
RandomVectorScorer	getRandomVectorScorer(String field, float[] target)
long	ramBytesUsed()

Methods inherited from class org.apache.lucene.codecs.hnsw.FlatVectorsReader

getFlatVectorScorer, getMergeInstance, search, search

Methods inherited from class org.apache.lucene.codecs.KnnVectorsReader

finishMerge, mergeOffHeapByteSizeMaps

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

Constructor Details

Lucene99ScalarQuantizedVectorsReader

public Lucene99ScalarQuantizedVectorsReader(SegmentReadState state,
 FlatVectorsReader rawVectorsReader,
 FlatVectorsScorer scorer)
                                     throws IOException

Sole constructor

Throws:

IOException

Method Details

checkIntegrity

public void checkIntegrity()
                    throws IOException

Specified by:

checkIntegrity in class KnnVectorsReader

Throws:

IOException

getFloatVectorValues

public FloatVectorValues getFloatVectorValues(String field)
                                       throws IOException

Specified by:

getFloatVectorValues in class KnnVectorsReader

Throws:

IOException

getByteVectorValues

public ByteVectorValues getByteVectorValues(String field)
                                     throws IOException

Specified by:

getByteVectorValues in class KnnVectorsReader

Throws:

IOException

getRandomVectorScorer

public RandomVectorScorer getRandomVectorScorer(String field,
 float[] target)
                                         throws IOException

Specified by:

getRandomVectorScorer in class FlatVectorsReader

Throws:

IOException

getRandomVectorScorer

public RandomVectorScorer getRandomVectorScorer(String field,
 byte[] target)
                                         throws IOException

Specified by:

getRandomVectorScorer in class FlatVectorsReader

Throws:

IOException

close

public void close()
           throws IOException

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable

Throws:

IOException

ramBytesUsed

public long ramBytesUsed()

Specified by:

ramBytesUsed in interface Accountable

getOffHeapByteSize

public Map<String,Long> getOffHeapByteSize(FieldInfo fieldInfo)

Overrides:

getOffHeapByteSize in class KnnVectorsReader

getQuantizedVectorValues

public QuantizedByteVectorValues getQuantizedVectorValues(String field)
                                                   throws IOException

Specified by:

getQuantizedVectorValues in interface QuantizedVectorsReader

Throws:

IOException

getQuantizationState

public ScalarQuantizer getQuantizationState(String field)

Specified by:

getQuantizationState in interface QuantizedVectorsReader