Struct FeatureStore 

pub struct FeatureStore { /* private fields */ }

Feature storage using trueno-db

Phase 1: Basic in-memory storage with file persistence Phase 2: Full trueno-db integration with GPU-resident data

Implementations

impl FeatureStore

pub fn new() -> Result<Self>

Create new feature store

pub fn insert(&mut self, feature: CommitFeatures) -> Result<()>

Insert single feature

pub fn bulk_insert(&mut self, features: Vec<CommitFeatures>) -> Result<()>

Bulk insert features (optimized for GPU batch processing)

pub fn query_by_category(&self, category: u8) -> Result<Vec<&CommitFeatures>>

Query features by defect category

pub fn query_by_time_range( &self, start_time: f64, end_time: f64, ) -> Result<Vec<&CommitFeatures>>

Query features by time range (for sliding window correlation)

Returns features where start_time <= timestamp < end_time Time is in Unix epoch seconds (f64)

pub fn all_features(&self) -> &[CommitFeatures]

Get all features (for compatibility)

pub fn to_vectors(&self) -> Vec<Vec<f32>>

Get all features as vectors (for GPU transfer)

pub fn len(&self) -> usize

Get feature count

pub fn is_empty(&self) -> bool

Check if store is empty

pub async fn save(&self, path: &Path) -> Result<()>

Save to file (JSON in Phase 1, Parquet in Phase 2)

pub async fn load(path: &Path) -> Result<Self>

Load from file (JSON in Phase 1, Parquet in Phase 2)

Trait Implementations

impl Default for FeatureStore

fn default() -> Self

Returns the “default value” for a type.