Struct QueryCache 

pub struct QueryCache { /* private fields */ }

Thread-safe query result cache with LRU eviction.

Implementations

impl QueryCache

pub fn new(config: CacheConfig) -> Self

Create a new query cache with the given configuration.

pub fn get( &self, query: &[f32], metric: DistanceMetric, k: usize, ) -> Option<Vec<SearchResult>>

Get cached results for a query.

Returns None if the query is not cached or has expired.

pub fn put( &mut self, query: &[f32], metric: DistanceMetric, k: usize, results: Vec<SearchResult>, )

Store query results in the cache.

pub fn clear(&mut self)

Clear all cached entries.

pub fn evict_expired(&mut self) -> usize

Remove expired entries from the cache.

pub fn stats(&self) -> CacheStats

Get cache statistics.

pub fn len(&self) -> usize

Get current cache size.

pub fn is_empty(&self) -> bool

Check if cache is empty.