lance_index::vector::quantizer

Trait Quantization

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pub trait Quantization:
    Send
    + Sync
    + Debug
    + DeepSizeOf
    + Into<Quantizer> {
    type BuildParams: QuantizerBuildParams;
    type Metadata: QuantizerMetadata + Send + Sync;
    type Storage: QuantizerStorage<Metadata = Self::Metadata> + VectorStore + Debug;

    // Required methods
    fn build(
        data: &dyn Array,
        distance_type: DistanceType,
        params: &Self::BuildParams,
    ) -> Result<Self>;
    fn code_dim(&self) -> usize;
    fn column(&self) -> &'static str;
    fn quantize(&self, vectors: &dyn Array) -> Result<ArrayRef>;
    fn metadata_key() -> &'static str;
    fn quantization_type() -> QuantizationType;
    fn metadata(&self, _: Option<QuantizationMetadata>) -> Result<Value>;
    fn from_metadata(
        metadata: &Self::Metadata,
        distance_type: DistanceType,
    ) -> Result<Quantizer>;

    // Provided method
    fn use_residual(_: DistanceType) -> bool { ... }
}

Required Associated Types§

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type BuildParams: QuantizerBuildParams

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type Metadata: QuantizerMetadata + Send + Sync

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type Storage: QuantizerStorage<Metadata = Self::Metadata> + VectorStore + Debug

Required Methods§

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fn build( data: &dyn Array, distance_type: DistanceType, params: &Self::BuildParams, ) -> Result<Self>

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fn code_dim(&self) -> usize

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fn column(&self) -> &'static str

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fn quantize(&self, vectors: &dyn Array) -> Result<ArrayRef>

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fn metadata_key() -> &'static str

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fn quantization_type() -> QuantizationType

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fn metadata(&self, _: Option<QuantizationMetadata>) -> Result<Value>

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fn from_metadata( metadata: &Self::Metadata, distance_type: DistanceType, ) -> Result<Quantizer>

Provided Methods§

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fn use_residual(_: DistanceType) -> bool

Object Safety§

This trait is not object safe.

Implementors§