Class Lucene99ScalarQuantizedVectorsWriter.QuantizedFloatVectorValues

Enclosing class:
Lucene99ScalarQuantizedVectorsWriter

private static class Lucene99ScalarQuantizedVectorsWriter.QuantizedFloatVectorValues extends QuantizedByteVectorValues
  • Field Details

    • values

      private final FloatVectorValues values
    • quantizer

      private final ScalarQuantizer quantizer
    • quantizedVector

      private final byte[] quantizedVector
    • normalizedVector

      private final float[] normalizedVector
    • offsetValue

      private float offsetValue
    • vectorSimilarityFunction

      private final VectorSimilarityFunction vectorSimilarityFunction
  • Constructor Details

  • Method Details

    • getScoreCorrectionConstant

      float getScoreCorrectionConstant()
      Specified by:
      getScoreCorrectionConstant in class QuantizedByteVectorValues
    • dimension

      public int dimension()
      Description copied from class: ByteVectorValues
      Return the dimension of the vectors
      Specified by:
      dimension in class ByteVectorValues
    • size

      public int size()
      Description copied from class: ByteVectorValues
      Return the number of vectors for this field.
      Specified by:
      size in class ByteVectorValues
      Returns:
      the number of vectors returned by this iterator
    • vectorValue

      public byte[] vectorValue() throws IOException
      Description copied from class: ByteVectorValues
      Return the vector value for the current document ID. It is illegal to call this method when the iterator is not positioned: before advancing, or after failing to advance. The returned array may be shared across calls, re-used, and modified as the iterator advances.
      Specified by:
      vectorValue in class ByteVectorValues
      Returns:
      the vector value
      Throws:
      IOException
    • docID

      public int docID()
      Description copied from class: DocIdSetIterator
      Returns the following:
      Specified by:
      docID in class DocIdSetIterator
    • nextDoc

      public int nextDoc() throws IOException
      Description copied from class: DocIdSetIterator
      Advances to the next document in the set and returns the doc it is currently on, or DocIdSetIterator.NO_MORE_DOCS if there are no more docs in the set.
      NOTE: after the iterator has exhausted you should not call this method, as it may result in unpredicted behavior.
      Specified by:
      nextDoc in class DocIdSetIterator
      Throws:
      IOException
    • advance

      public int advance(int target) throws IOException
      Description copied from class: DocIdSetIterator
      Advances to the first beyond the current whose document number is greater than or equal to target, and returns the document number itself. Exhausts the iterator and returns DocIdSetIterator.NO_MORE_DOCS if target is greater than the highest document number in the set.

      The behavior of this method is undefined when called with target ≤ current , or after the iterator has exhausted. Both cases may result in unpredicted behavior.

      When target > current it behaves as if written:

       int advance(int target) {
         int doc;
         while ((doc = nextDoc()) < target) {
         }
         return doc;
       }
       
      Some implementations are considerably more efficient than that.

      NOTE: this method may be called with DocIdSetIterator.NO_MORE_DOCS for efficiency by some Scorers. If your implementation cannot efficiently determine that it should exhaust, it is recommended that you check for that value in each call to this method.

      Specified by:
      advance in class DocIdSetIterator
      Throws:
      IOException
    • quantize

      private void quantize() throws IOException
      Throws:
      IOException