Struct PrecomputedEmbedder 

pub struct PrecomputedEmbedder;

An embedder that does not support text or image embedding, used for pre-computed vectors.

This embedder is used when documents already contain pre-computed vectors and no embedding is needed. It implements the Null Object Pattern, providing a concrete implementation that explicitly does nothing.

Example

use std::sync::Arc;
use laurus::embedding::precomputed::PrecomputedEmbedder;
use laurus::embedding::embedder::Embedder;

let embedder: Arc<dyn Embedder> = Arc::new(PrecomputedEmbedder::new());
assert!(!embedder.supports_text());
assert!(!embedder.supports_image());

When to Use

• Pre-computed vectors: When vectors are computed externally before indexing
• Testing: When embedding functionality is not needed in tests
• Default placeholder: As a default value when embedder is required but not used

Implementations

impl PrecomputedEmbedder

pub fn new() -> Self

Creates a new PrecomputedEmbedder.

Example

use laurus::embedding::precomputed::PrecomputedEmbedder;

let embedder = PrecomputedEmbedder::new();

Trait Implementations

impl Clone for PrecomputedEmbedder

fn clone(&self) -> PrecomputedEmbedder

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PrecomputedEmbedder

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

Formats the value using the given formatter.

impl Default for PrecomputedEmbedder

fn default() -> PrecomputedEmbedder

Returns the “default value” for a type.

impl Embedder for PrecomputedEmbedder

fn embed<'life0, 'life1, 'life2, 'async_trait>( &'life0 self, _input: &'life1 EmbedInput<'life2>, ) -> Pin<Box<dyn Future<Output = Result<Vector>> + Send + 'async_trait>>

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

Returns an error for any input, as this embedder does not support embedding.

fn supported_input_types(&self) -> Vec<EmbedInputType>

Returns an empty list as this embedder does not support any input types.

fn supports_text(&self) -> bool

Returns false as this embedder does not support text input.

fn supports_image(&self) -> bool

Returns false as this embedder does not support image input.

fn as_any(&self) -> &dyn Any

Returns a reference to self as &dyn Any for downcasting.

fn name(&self) -> &str

Get the name/identifier of this embedder.

fn embed_batch<'life0, 'life1, 'life2, 'async_trait>( &'life0 self, inputs: &'life1 [EmbedInput<'life2>], ) -> Pin<Box<dyn Future<Output = Result<Vec<Vector>>> + Send + 'async_trait>>

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

Generate embeddings for multiple inputs in batch.

fn supports(&self, input_type: EmbedInputType) -> bool

Check if this embedder supports the given input type.

fn is_multimodal(&self) -> bool

Check if this embedder is multimodal (supports both text and image).