Struct cached::stores::TimedCache

pub struct TimedCache<K, V> { /* fields omitted */ }

Cache store bound by time

Values are timestamped when inserted and are evicted if expired at time of retrieval.

Note: This cache is in-memory only

Methods

impl<K: Hash + Eq, V> TimedCache<K, V>

pub fn with_lifespan(seconds: u64) -> TimedCache<K, V>

Creates a new TimedCache with a specified lifespan

pub fn with_lifespan_and_capacity(seconds: u64, size: usize) -> TimedCache<K, V>

Creates a new TimedCache with a specified lifespan and cache-store with the specified pre-allocated capacity

Trait Implementations

impl<K: Hash + Eq, V> Cached<K, V> for TimedCache<K, V>

fn cache_get(&mut self, key: &K) -> Option<&V>

Attempt to retrieve a cached value

fn cache_set(&mut self, key: K, val: V)

Insert a key, value pair

fn cache_remove(&mut self, k: &K) -> Option<V>

Remove a cached value

fn cache_clear(&mut self)

Remove all cached values

fn cache_size(&self) -> usize

Return the current cache size (number of elements)

fn cache_hits(&self) -> Option<u32>

Return the number of times a cached value was successfully retrieved

fn cache_misses(&self) -> Option<u32>

Return the number of times a cached value was unable to be retrieved

fn cache_lifespan(&self) -> Option<u64>

Return the lifespan of cached values (time to eviction)

fn cache_capacity(&self) -> Option<usize>

Return the cache capacity