core/org.gnit.lucenekmp.codecs.hnsw/FlatVectorsWriter

FlatVectorsWriter

abstract class FlatVectorsWriter : KnnVectorsWriter

Vectors' writer for a field that allows additional indexing logic to be implemented by the caller

Inheritors

Lucene102BinaryQuantizedVectorsWriter

Lucene99FlatVectorsWriter

Lucene99ScalarQuantizedVectorsWriter

Properties

open val childResources: MutableCollection<Accountable>

Returns nested resources of this class. The result should be a point-in-time snapshot (to avoid race conditions).

val vectorScorer: FlatVectorsScorer

Scorer for flat vectors

Functions

abstract override fun addField(fieldInfo: FieldInfo): FlatFieldVectorsWriter<*>

Add a new field for indexing

expect abstract fun close()

abstract fun finish()

Called once at the end before close

abstract fun flush(maxDoc: Int, sortMap: Sorter.DocMap?)

Flush all buffered data on disk *

getFlatVectorScorer

fun getFlatVectorScorer(): FlatVectorsScorer

fun merge(mergeState: MergeState)

Merges the segment vectors for all fields. This default implementation delegates to .mergeOneField, passing a KnnVectorsReader that combines the vector values and ignores deleted documents.

open fun mergeOneField(fieldInfo: FieldInfo, mergeState: MergeState)

Write field for merging

mergeOneFieldToIndex

abstract fun mergeOneFieldToIndex(fieldInfo: FieldInfo, mergeState: MergeState): CloseableRandomVectorScorerSupplier

Write the field for merging, providing a scorer over the newly merged flat vectors. This way any additional merging logic can be implemented by the user of this class.

abstract fun ramBytesUsed(): Long

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