Struct MemoryCache 

pub struct MemoryCache { /* private fields */ }

In-memory cache implementation

Implementations

impl MemoryCache

pub fn new() -> Self

Create a new in-memory cache with a default TTL of one hour

pub fn with_default_ttl(ttl: Duration) -> Self

Create a new in-memory cache with a custom default TTL

pub async fn remember<T, F, Fut>( &self, key: &str, ttl: Duration, f: F, ) -> Result<T>

where T: Serialize + for<'de> Deserialize<'de> + Send + Sync, F: FnOnce() -> Fut + Send, Fut: Future<Output = Result<T>> + Send,

Remember a value, executing the closure if not cached

pub fn stats(&self) -> CacheStats

Snapshot in-memory cache operation counters.

pub fn reset_stats(&self)

Reset cache operation counters.

Trait Implementations

impl Cache for MemoryCache

fn get<'life0, 'life1, 'async_trait, T>( &'life0 self, key: &'life1 str, ) -> Pin<Box<dyn Future<Output = Result<Option<T>>> + Send + 'async_trait>>

where T: for<'de> Deserialize<'de> + Send + 'async_trait, Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

Retrieve a value from the cache by key

fn set<'life0, 'life1, 'life2, 'async_trait, T>( &'life0 self, key: &'life1 str, value: &'life2 T, ttl: Option<Duration>, ) -> Pin<Box<dyn Future<Output = Result<()>> + Send + 'async_trait>>

where T: Serialize + Send + Sync + 'async_trait, Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait, 'life2: 'async_trait,

Store a value in the cache with an optional TTL

fn delete<'life0, 'life1, 'async_trait>( &'life0 self, key: &'life1 str, ) -> Pin<Box<dyn Future<Output = Result<()>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

Delete a key from the cache

fn exists<'life0, 'life1, 'async_trait>( &'life0 self, key: &'life1 str, ) -> Pin<Box<dyn Future<Output = Result<bool>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

Check if a key exists in the cache

fn flush<'life0, 'async_trait>( &'life0 self, ) -> Pin<Box<dyn Future<Output = Result<()>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait,

Clear all entries from the cache

impl Default for MemoryCache

fn default() -> Self

Returns the “default value” for a type.