Struct EvaluationCache 

pub struct EvaluationCache<T: Float + Debug + Send + Sync + 'static> { /* private fields */ }

Evaluation cache for storing results

Entries are evicted according to CacheEvictionPolicy once the cache exceeds its capacity. The default policy is LRU: the entry whose last access is oldest is dropped first.

Implementations

impl<T: Float + Debug + Default + Send + Sync> EvaluationCache<T>

pub fn with_capacity( capacity: usize, eviction_policy: CacheEvictionPolicy, ) -> Self

Create a cache with an explicit capacity and eviction policy.

A capacity of zero is promoted to one so the cache always retains the most recent insertion.

pub fn stats(&self) -> &CacheMetadata

Get cache statistics

pub fn capacity(&self) -> usize

Maximum number of entries this cache retains.

pub fn total_accesses(&self) -> usize

Total number of cache reads recorded across all live entries.

pub fn access_frequency(&self, key: &str) -> Option<usize>

Number of times key has been read out of the cache, or None if it is not resident.

The access frequency used to be tracked a second time, in an AccessPatterns.frequency_distribution map that nothing ever read; the per-entry counter that already drives LFU eviction is the single source of truth now. AccessPatterns also carried temporal_patterns and correlation_patterns — a Vec and a HashMap that were constructed empty, never written and never read, describing an access-pattern analysis this cache does not perform. Both are gone.

pub fn hottest_key(&self) -> Option<&str>

Key of the most-read resident entry, ties broken by key so the answer is deterministic. None when the cache is empty.

pub fn clear(&mut self)

Clear the cache

pub fn contains(&self, key: &str) -> bool

Check if cache contains a key

pub fn len(&self) -> usize

Get number of entries

pub fn is_empty(&self) -> bool

Check if cache is empty

Trait Implementations

impl<T: Debug + Float + Debug + Send + Sync + 'static> Debug for EvaluationCache<T>

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

Formats the value using the given formatter.