Enum Engine 

pub enum Engine {
    Lucene,
    Nmslib,
    Faiss,
}

k-NN engine used for approximate nearest neighbor search.

Variants

Lucene

Apache Lucene engine. Good default, supports all space types.

Nmslib

NMSLIB engine. High performance for cosine and L2.

Faiss

FAISS engine. Supports IVF and HNSW, GPU-accelerated options.

Implementations

impl Engine

pub fn as_str(&self) -> &'static str

Returns the OpenSearch engine string used in index mappings.

Trait Implementations

impl Clone for Engine

fn clone(&self) -> Engine

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Engine

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for Engine

fn default() -> Self

Returns the “default value” for a type.

impl PartialEq for Engine

fn eq(&self, other: &Engine) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for Engine

impl Eq for Engine

impl StructuralPartialEq for Engine