Struct Node 

pub struct Node {
    pub vector: Vector,
    pub uri: String,
    pub connections: Vec<HashSet<usize>>,
    pub vector_data_f32: Vec<f32>,
    pub access_count: u64,
    pub metadata: HashMap<String, String>,
}

Node in the HNSW graph with cache-friendly layout

Fields

vector: Vector

Vector data (stored first for cache efficiency)

uri: String

URI identifier

connections: Vec<HashSet<usize>>

Connections for each layer (layer -> set of connected node IDs)

vector_data_f32: Vec<f32>

Cache-friendly vector data for SIMD operations

access_count: u64

Node access frequency (for cache optimization)

metadata: HashMap<String, String>

Metadata for filtered search

Implementations

impl Node

pub fn new(uri: String, vector: Vector, max_level: usize) -> Self

pub fn with_metadata( uri: String, vector: Vector, max_level: usize, metadata: HashMap<String, String>, ) -> Self

Create a new node with metadata

pub fn record_access(&mut self)

Increment access count for cache optimization

pub fn level(&self) -> usize

Get the maximum level for this node

pub fn get_connections(&self, level: usize) -> Option<&HashSet<usize>>

Get connections at a specific level

pub fn get_connections_mut( &mut self, level: usize, ) -> Option<&mut HashSet<usize>>

Get mutable connections at a specific level

pub fn add_connection(&mut self, level: usize, node_id: usize)

Add a connection at a specific level

pub fn remove_connection(&mut self, level: usize, node_id: usize)

Remove a connection at a specific level

Trait Implementations

impl Clone for Node

fn clone(&self) -> Node

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Node

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

Formats the value using the given formatter.