Struct AsyncCache 

pub struct AsyncCache<K, T, F, S = RandomState>
where
    T: Send + Sync + 'static,
    F: Fetcher<K, T> + Sync + Send + 'static,
{ /* private fields */ }

Implementations

impl<K, T, F, S> AsyncCache<K, T, F, S>

where K: Eq + Hash + Sync + Send + Clone, F: Fetcher<K, T> + Sync + Send, T: Send + Sync + Clone + 'static, S: BuildHasher + Clone + 'static,

pub fn builder( refresh_interval: Duration, fetcher: F, ) -> AsyncCacheBuilder<K, T, F, S>

get a builder to customize the cache

pub fn set_default(&self, key: K, value: T)

SetDefault sets the default value of given key if it is new to the cache. It is useful for cache warming up.

pub async fn get(&self, key: &K) -> Option<T>

Returns None if first fetch result is err

pub fn get_or_set(&self, key: K, value: T) -> T

pub fn delete(&self, prediction: impl Fn(&K) -> bool)

pub fn retain(&self, prediction: impl FnMut(&K, &mut T) -> bool)

Trait Implementations

impl<K, T, F, S> Clone for AsyncCache<K, T, F, S>

where T: Send + Sync + 'static, F: Fetcher<K, T> + Sync + Send + 'static,

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.