Struct CentroidEntry 

pub struct CentroidEntry {
    pub centroid_id: u64,
    pub vector: Vec<f32>,
}

A single centroid entry with its ID and vector.

Each centroid represents a cluster in the SPANN index. The centroid vector is typically the mean of all vectors assigned to that cluster. During search, the query vector is compared against centroids to find relevant clusters, then the posting lists for those clusters are loaded to find candidate vectors.

See PostingList for the mapping from centroid_id to vector IDs.

Fields

centroid_id: u64

Stable identifier for this centroid (starts at 1, never reused).

This ID is used as the key suffix in PostingListKey to look up the vector IDs assigned to this cluster. ID 0 is reserved for the deleted vectors bitmap.

vector: Vec<f32>

Centroid vector with dimensions elements (from CollectionMeta).

This is the representative vector for the cluster, typically computed as the mean of assigned vectors. The dimensionality must match all other vectors in the collection.

Implementations

impl CentroidEntry

pub fn new(centroid_id: u64, vector: Vec<f32>) -> Self

pub fn dimensions(&self) -> usize

Returns the dimensionality of the centroid vector.

Trait Implementations

impl Clone for CentroidEntry

fn clone(&self) -> CentroidEntry

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CentroidEntry

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

Formats the value using the given formatter.

impl Encode for CentroidEntry

fn encode(&self, buf: &mut BytesMut)

impl PartialEq for CentroidEntry

fn eq(&self, other: &CentroidEntry) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for CentroidEntry