# Uses of Interface
org.apache.lucene.util.quantization.QuantizedVectorsReader

Packages that use QuantizedVectorsReader
Package
Description
org.apache.lucene.codecs.lucene99
Lucene 9.9 file format.

- ## Uses of QuantizedVectorsReader in org.apache.lucene.codecs.lucene99

  Classes in org.apache.lucene.codecs.lucene99 that implement QuantizedVectorsReader
  Modifier and Type
  Class
  Description
  `final class`
  `Lucene99HnswVectorsReader`
  Reads vectors from the index segments along with index data structures supporting KNN search.
  `final class`
  `Lucene99ScalarQuantizedVectorsReader`
  Reads Scalar Quantized vectors from the index segments along with index data structures.