Struct InMemoryVectorBackend 

pub struct InMemoryVectorBackend { /* private fields */ }

A brute-force cosine vector backend backed by a Vec guarded by a mutex.

Implementations

impl InMemoryVectorBackend

pub fn new(dim: usize) -> Self

Create a backend that only accepts vectors of dim dimensions.

Trait Implementations

impl VectorBackend for InMemoryVectorBackend

fn upsert<'life0, 'life1, 'life2, 'async_trait>( &'life0 self, id: &'life1 str, embedding: &'life2 [f32], metadata: Metadata, ) -> Pin<Box<dyn Future<Output = Result<()>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait, 'life2: 'async_trait,

Upsert a vector with metadata. If id exists it is replaced.

fn search<'life0, 'life1, 'life2, 'async_trait>( &'life0 self, query: &'life1 [f32], top_k: usize, filter: Option<&'life2 Filter>, ) -> Pin<Box<dyn Future<Output = Result<Vec<VectorHit>>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait, 'life2: 'async_trait,

Search for vectors similar to query, returning at most top_k hits that satisfy filter (pre-filter where supported).

fn delete<'life0, 'life1, 'async_trait>( &'life0 self, id: &'life1 str, ) -> Pin<Box<dyn Future<Output = Result<()>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

Delete a vector by ID. No-op if absent.

fn dimension(&self) -> usize

The fixed dimension of vectors this backend accepts.