pub trait Retriever: Send + Sync {
// Required method
fn retrieve<'life0, 'life1, 'life2, 'life3, 'async_trait>(
&'life0 self,
tree: &'life1 DocumentTree,
query: &'life2 str,
options: &'life3 RetrieveOptions,
) -> Pin<Box<dyn Future<Output = Result<Vec<RetrievalResult>>> + Send + 'async_trait>>
where Self: 'async_trait,
'life0: 'async_trait,
'life1: 'async_trait,
'life2: 'async_trait,
'life3: 'async_trait;
}Expand description
A retriever finds relevant content in a document tree.
Implementations can use different strategies:
- LLM-based navigation (tree traversal)
- MCTS (Monte Carlo Tree Search)
- Beam search
- Vector similarity
§Example
use vectorless::core::{Retriever, DocumentTree, Result};
use vectorless::retriever::RetrieveOptions;
use async_trait::async_trait;
struct MyRetriever;
#[async_trait]
impl Retriever for MyRetriever {
async fn retrieve(&self, tree: &DocumentTree, query: &str, options: &RetrieveOptions) -> Result<Vec<RetrievalResult>> {
// Return relevant content
Ok(vec![RetrievalResult::new("Relevant content")])
}
}