Package com.apple.foundationdb.async.common

package com.apple.foundationdb.async.common
Common logic for all kinds of structures for effectively searching, retrieving and managing vectors.
  • Class
    Description
    AggregatedVector
    A record-like class wrapping a RealVector and a count.
    DistinctTopK<T>
    A fixed-capacity collector that retains the top k distinct elements offered, as ordered by a Comparator (the k that compare greatest).
    OnKeyValueReadListener
    Interface for call backs whenever we read data from the database.
    OnKeyValueWriteListener
    Interface for call backs whenever we write data to the database.
    RandomHelpers
     
    RandomHelpers.GaussianSampler
     
    ResultEntry
    Record class that wraps the results of a kNN-search.
    StorageHelpers
    Static helpers for the storage layer shared by the vector index implementations: (de)serializing vectors to and from their Tuple and byte representations, and appending to, consuming, aggregating, and clearing the set of sampled vectors held in a subspace.
    StorageTransform
    A special operator that is used to rotate, translate, and potentially normalize vectors.
    TimedAsyncIterable
    Wraps an AsyncIterable so the wall-clock time spent awaiting its elements is measured and reported once the scan finishes.
    TopK<T>
    A fixed-capacity collector that retains the top k elements offered, as ordered by a Comparator (the k that compare greatest).
    VectorEncodingConfig
    The minimal vector-encoding configuration shared by the HNSW and Guardiann configs: the metric, the number of dimensions, and the RaBitQ encoding parameters needed to (de)serialize stored vectors.