Struct EmbeddingCache 

pub struct EmbeddingCache { /* private fields */ }

Content-addressable embedding cache with TTL and LRU eviction.

Implementations

impl EmbeddingCache

pub fn new(ttl_secs: u64, max_entries: usize) -> Self

Create a new cache with TTL and capacity.

Arguments

• ttl_secs - Time-to-live for cached entries in seconds
• max_entries - Maximum number of entries to cache

pub fn content_hash(content: &str) -> u64

Hash content to cache key.

pub fn get(&self, content: &str) -> Option<Vec<f32>>

Get cached embedding if exists and not expired.

pub fn insert(&self, content: &str, embedding: Vec<f32>)

Cache an embedding.

pub fn evict_expired(&self) -> usize

Evict expired entries.

Returns the number of entries evicted.

pub fn evict_lru(&self, target_size: usize) -> usize

Evict least recently used entries to free space.

Returns the number of entries evicted.

pub fn stats(&self) -> CacheStats

Cache statistics.

pub fn clear(&self)

Clear the cache.