Module org.elasticsearch.server

Package org.elasticsearch.index.codec.vectors.es93

Class ES93HnswVectorsFormat

java.lang.Object

org.apache.lucene.codecs.KnnVectorsFormat

org.elasticsearch.index.codec.vectors.AbstractHnswVectorsFormat

org.elasticsearch.index.codec.vectors.es93.ES93HnswVectorsFormat

All Implemented Interfaces:

org.apache.lucene.util.NamedSPILoader.NamedSPI

public class ES93HnswVectorsFormat
extends AbstractHnswVectorsFormat

Field Summary

Fields

Modifier and Type	Field	Description
static final int	HNSW_GRAPH_THRESHOLD	For k=100, we ask by default to search a graph of 100*1.5=150 results.

Fields inherited from class org.elasticsearch.index.codec.vectors.AbstractHnswVectorsFormat

beamWidth, DEFAULT_HNSW_GRAPH_THRESHOLD, hnswGraphThreshold, maxConn, mergeExec, numMergeWorkers

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

DEFAULT_MAX_DIMENSIONS, EMPTY

Constructor Summary

Constructors

Constructor	Description
ES93HnswVectorsFormat()
ES93HnswVectorsFormat(int maxConn, int beamWidth, DenseVectorFieldMapper.ElementType elementType)
ES93HnswVectorsFormat(int maxConn, int beamWidth, DenseVectorFieldMapper.ElementType elementType, int numMergeWorkers, ExecutorService mergeExec)
ES93HnswVectorsFormat(int maxConn, int beamWidth, DenseVectorFieldMapper.ElementType elementType, int numMergeWorkers, ExecutorService mergeExec, int hnswGraphThreshold)
ES93HnswVectorsFormat(DenseVectorFieldMapper.ElementType elementType)

Method Summary

Modifier and Type	Method	Description
org.apache.lucene.codecs.KnnVectorsReader	fieldsReader(org.apache.lucene.index.SegmentReadState state)
org.apache.lucene.codecs.KnnVectorsWriter	fieldsWriter(org.apache.lucene.index.SegmentWriteState state)
protected org.apache.lucene.codecs.hnsw.FlatVectorsFormat	flatVectorsFormat()

Methods inherited from class org.elasticsearch.index.codec.vectors.AbstractHnswVectorsFormat

getMaxDimensions, resolveThreshold, toString

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

availableKnnVectorsFormats, forName, getName, reloadKnnVectorsFormat

Methods inherited from class java.lang.Object

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

Field Details

HNSW_GRAPH_THRESHOLD

public static final int HNSW_GRAPH_THRESHOLD

For k=100, we ask by default to search a graph of 100*1.5=150 results. So the threshold is set to 150 to match this expected search cost.

See Also:

• Constant Field Values

Constructor Details

ES93HnswVectorsFormat

public ES93HnswVectorsFormat()

ES93HnswVectorsFormat

public ES93HnswVectorsFormat(DenseVectorFieldMapper.ElementType elementType)

ES93HnswVectorsFormat

public ES93HnswVectorsFormat(int maxConn,
 int beamWidth,
 DenseVectorFieldMapper.ElementType elementType)

ES93HnswVectorsFormat

public ES93HnswVectorsFormat(int maxConn,
 int beamWidth,
 DenseVectorFieldMapper.ElementType elementType,
 int numMergeWorkers,
 ExecutorService mergeExec)

ES93HnswVectorsFormat

public ES93HnswVectorsFormat(int maxConn,
 int beamWidth,
 DenseVectorFieldMapper.ElementType elementType,
 int numMergeWorkers,
 ExecutorService mergeExec,
 int hnswGraphThreshold)

Method Details

flatVectorsFormat

protected org.apache.lucene.codecs.hnsw.FlatVectorsFormat flatVectorsFormat()

Specified by:

flatVectorsFormat in class AbstractHnswVectorsFormat

fieldsWriter

public org.apache.lucene.codecs.KnnVectorsWriter fieldsWriter(org.apache.lucene.index.SegmentWriteState state)
                                                       throws IOException

Specified by:

fieldsWriter in class org.apache.lucene.codecs.KnnVectorsFormat

Throws:

IOException

fieldsReader

public org.apache.lucene.codecs.KnnVectorsReader fieldsReader(org.apache.lucene.index.SegmentReadState state)
                                                       throws IOException

Specified by:

fieldsReader in class org.apache.lucene.codecs.KnnVectorsFormat

Throws:

IOException