Trait CacheExt 

pub trait CacheExt: Cache {
    // Provided methods
    fn get_or_set<'life0, 'life1, 'async_trait, F, Fut>(
        &'life0 self,
        key: &'life1 str,
        ttl: Option<Duration>,
        f: F,
    ) -> Pin<Box<dyn Future<Output = Result<Vec<u8>, CacheError>> + Send + 'async_trait>>
       where F: FnOnce() -> Fut + Send + 'async_trait,
             Fut: Future<Output = Result<Vec<u8>, CacheError>> + Send + 'async_trait,
             Self: Sync + 'async_trait,
             'life0: 'async_trait,
             'life1: 'async_trait { ... }
    fn get_or_set_json<'life0, 'life1, 'async_trait, T, F, Fut>(
        &'life0 self,
        key: &'life1 str,
        ttl: Option<Duration>,
        f: F,
    ) -> Pin<Box<dyn Future<Output = Result<T, CacheError>> + Send + 'async_trait>>
       where T: Serialize + DeserializeOwned + Send + 'async_trait,
             F: FnOnce() -> Fut + Send + 'async_trait,
             Fut: Future<Output = Result<T, CacheError>> + Send + 'async_trait,
             Self: Sync + 'async_trait,
             'life0: 'async_trait,
             'life1: 'async_trait { ... }
}

Extension trait providing convenient get_or_set helpers on any Cache.

Provided Methods

fn get_or_set<'life0, 'life1, 'async_trait, F, Fut>( &'life0 self, key: &'life1 str, ttl: Option<Duration>, f: F, ) -> Pin<Box<dyn Future<Output = Result<Vec<u8>, CacheError>> + Send + 'async_trait>>

where F: FnOnce() -> Fut + Send + 'async_trait, Fut: Future<Output = Result<Vec<u8>, CacheError>> + Send + 'async_trait, Self: Sync + 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

Retrieves key if cached; otherwise executes f, caches the result under key, and returns it.

fn get_or_set_json<'life0, 'life1, 'async_trait, T, F, Fut>( &'life0 self, key: &'life1 str, ttl: Option<Duration>, f: F, ) -> Pin<Box<dyn Future<Output = Result<T, CacheError>> + Send + 'async_trait>>

where T: Serialize + DeserializeOwned + Send + 'async_trait, F: FnOnce() -> Fut + Send + 'async_trait, Fut: Future<Output = Result<T, CacheError>> + Send + 'async_trait, Self: Sync + 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

Retrieves and deserializes key from JSON; otherwise executes f, serializes to JSON, caches, and returns T.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors

impl<T: Cache + ?Sized> CacheExt for T