Struct FingerprintIndex 

pub struct FingerprintIndex { /* private fields */ }

Cosine-matches outbound content against registered sensitive documents.

Registration embeds with the document prefix; matching embeds with the query prefix (see EmbeddingProvider::embed / embed_document for the asymmetric-model rationale).

Implementations

impl FingerprintIndex

pub fn new(provider: Arc<dyn EmbeddingProvider>) -> Self

New index with the default match threshold (0.85).

pub fn with_threshold( provider: Arc<dyn EmbeddingProvider>, threshold: f64, ) -> Self

New index with an explicit cosine threshold (higher = stricter).

pub fn register(&mut self, doc_id: u64, text: &str) -> Result<()>

Register (or re-register — appends) a sensitive document under doc_id.

pub fn len(&self) -> usize

Number of registered document vectors.

pub fn is_empty(&self) -> bool

Whether nothing is registered.

pub fn match_content(&self, content: &str) -> Result<Option<SearchHit>>

Embed content (query prefix) and return the best registered document at or above the threshold, or Ok(None) when nothing matches.