Returns the ByteVectorValues for the given field. The behavior is undefined if the given field doesn't have KNN vectors enabled on its FieldInfo. The return value is never null.

getFieldReader

fun getFieldReader(field: String): KnnVectorsReader?

Return the underlying VectorReader for the given field

getFloatVectorValues

open override fun getFloatVectorValues(field: String): FloatVectorValues?

Returns the FloatVectorValues for the given field. The behavior is undefined if the given field doesn't have KNN vectors enabled on its FieldInfo. The return value is never null.

getGraph

open override fun getGraph(field: String): HnswGraph?

Return the stored HnswGraph for the given field.

open override fun search(field: String, target: ByteArray, knnCollector: KnnCollector, acceptDocs: Bits?)

open override fun search(field: String, target: FloatArray, knnCollector: KnnCollector, acceptDocs: Bits?)

Return the k nearest neighbor documents as determined by comparison of their vector values for this field, to the given vector, by the field's similarity function. The score of each document is derived from the vector similarity in a way that ensures scores are positive and that a larger score corresponds to a higher ranking.