core/org.gnit.lucenekmp.codecs/KnnVectorsWriter

KnnVectorsWriter

abstract class KnnVectorsWriter : Accountable, AutoCloseable

Writes vectors to an index.

Inheritors

BufferingKnnVectorsWriter

FlatVectorsWriter

Lucene99HnswVectorsWriter

Types

ByteVectorValuesSub

class ByteVectorValuesSub(docMap: MergeState.DocMap, val values: ByteVectorValues) : DocIDMerger.Sub

object Companion

MergedVectorValues

object MergedVectorValues

View over multiple vector values supporting iterator-style access via DocIdMerger.

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).

Functions

abstract fun addField(fieldInfo: FieldInfo): KnnFieldVectorsWriter<*>

Add 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 *

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

abstract fun ramBytesUsed(): Long

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