Struct SparseIndex 

pub struct SparseIndex { /* private fields */ }

In-memory inverted index for sparse vectors.

Implementations

impl SparseIndex

pub fn new() -> Self

pub fn from_parts( dim_map: HashMap<u32, usize>, dim_reverse: Vec<u32>, postings: Vec<Postings>, vectors: HashMap<u64, SparseVector>, ) -> Self

Reconstruct from stored parts (dims + vectors, postings separate).

pub fn dim_map(&self) -> &HashMap<u32, usize>

pub fn dim_reverse(&self) -> &[u32]

pub fn postings(&self) -> &[Postings]

pub fn postings_mut(&mut self) -> &mut Vec<Postings>

pub fn vectors(&self) -> &HashMap<u64, SparseVector>

pub fn set_vectors(&mut self, vectors: HashMap<u64, SparseVector>)

pub fn len(&self) -> usize

pub fn is_empty(&self) -> bool

pub fn insert(&mut self, node_id: u64, vector: &SparseVector)

Index a record’s vector, replacing any previous vector under the same id. Zero weights are not indexed (see the module docs).

pub fn remove(&mut self, node_id: u64) -> bool

Remove a record. Returns true if it existed.

pub fn search(&self, query: &SparseVector, limit: usize) -> Vec<(u64, f32)>

Top-limit records by dot product with query, score descending then id ascending.

pub fn search_filtered( &self, query: &SparseVector, limit: usize, allowed_ids: &[u64], ) -> Vec<(u64, f32)>

search restricted to allowed_ids.

pub fn clear(&mut self)

Clear the entire index.

Trait Implementations

impl Debug for SparseIndex

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

Formats the value using the given formatter.

impl Default for SparseIndex

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for SparseIndex

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for SparseIndex

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.