Struct StubEmbedder 

pub struct StubEmbedder { /* private fields */ }

Stub embedder — hash-based pseudo-embeddings for testing/fallback.

Generates deterministic embeddings from text content using SHA-256 hashing. Not useful for real semantic search, but provides a fallback when no embedder is available and allows tests to run without a server.

Implementations

impl StubEmbedder

pub const fn new(dimension: usize) -> Self

Create a new stub embedder with the given dimensionality.

Trait Implementations

impl Default for StubEmbedder

fn default() -> Self

Returns the “default value” for a type.

impl Embedder for StubEmbedder

fn embed_batch(&self, texts: &[&str]) -> Result<Vec<Vec<f32>>>

Embed a batch of texts into f32 vectors.

fn dimension(&self) -> usize

Get the embedding dimensionality.

fn is_available(&self) -> bool

Whether this embedder is available (model loaded, server reachable).

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

Name of this embedder backend.

fn embed(&self, text: &str) -> Result<Vec<f32>>

Embed a single text.

fn embed_query(&self, query: &str) -> Result<Vec<f32>>

Embed a single query (alias for embed).

fn cache_namespace(&self) -> String

Identity used to namespace the persistent embedding cache.

fn preferred_max_batch_texts(&self) -> usize

Preferred batch granularity in TEXTS for batch write paths.