## Uses of Class
org.apache.lucene.codecs.FlatVectorsReader

- Packages that use FlatVectorsReader
  Package | Description
  --- | ---
  org.apache.lucene.codecs | Codecs API: API for customization of the encoding and structure of the index.
  org.apache.lucene.codecs.lucene99 | Lucene 9.9 file format.

- - ### Uses of FlatVectorsReader in org.apache.lucene.codecs

    Methods in org.apache.lucene.codecs that return FlatVectorsReader
    Modifier and Type | Method | Description
    --- | --- | ---
    `abstract FlatVectorsReader` | FlatVectorsFormat.`fieldsReader​(SegmentReadState state)` | Returns a `KnnVectorsReader` to read the vectors from the index.

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

    Subclasses of FlatVectorsReader in org.apache.lucene.codecs.lucene99
    Modifier and Type | Class | Description
    --- | --- | ---
    `class` | `Lucene99FlatVectorsReader` | Reads vectors from the index segments.
    `class` | `Lucene99ScalarQuantizedVectorsReader` | Reads Scalar Quantized vectors from the index segments along with index data structures.

    Methods in org.apache.lucene.codecs.lucene99 that return FlatVectorsReader
    Modifier and Type | Method | Description
    --- | --- | ---
    `FlatVectorsReader` | Lucene99FlatVectorsFormat.`fieldsReader​(SegmentReadState state)` |
    `FlatVectorsReader` | Lucene99ScalarQuantizedVectorsFormat.`fieldsReader​(SegmentReadState state)` |

    Constructors in org.apache.lucene.codecs.lucene99 with parameters of type FlatVectorsReader
    Constructor | Description
    --- | ---
    `Lucene99HnswVectorsReader​(SegmentReadState state, FlatVectorsReader flatVectorsReader)` |
    `Lucene99ScalarQuantizedVectorsReader​(SegmentReadState state, FlatVectorsReader rawVectorsReader)` |