Trait CacheBackend 

pub trait CacheBackend: Send + Sync {
    // Required methods
    fn get<'life0, 'life1, 'async_trait>(
        &'life0 self,
        key: &'life1 CacheKey,
    ) -> Pin<Box<dyn Future<Output = Result<Option<Vec<u8>>, Error>> + Send + 'async_trait>>
       where 'life0: 'async_trait,
             'life1: 'async_trait,
             Self: 'async_trait;
    fn set<'life0, 'life1, 'life2, 'async_trait>(
        &'life0 self,
        key: &'life1 CacheKey,
        value: &'life2 [u8],
        ttl: Duration,
    ) -> Pin<Box<dyn Future<Output = Result<(), Error>> + Send + 'async_trait>>
       where 'life0: 'async_trait,
             'life1: 'async_trait,
             'life2: 'async_trait,
             Self: 'async_trait;
    fn delete<'life0, 'life1, 'async_trait>(
        &'life0 self,
        key: &'life1 CacheKey,
    ) -> Pin<Box<dyn Future<Output = Result<bool, Error>> + Send + 'async_trait>>
       where 'life0: 'async_trait,
             'life1: 'async_trait,
             Self: 'async_trait;
    fn exists<'life0, 'life1, 'async_trait>(
        &'life0 self,
        key: &'life1 CacheKey,
    ) -> Pin<Box<dyn Future<Output = Result<bool, Error>> + Send + 'async_trait>>
       where 'life0: 'async_trait,
             'life1: 'async_trait,
             Self: 'async_trait;
    fn clear<'life0, 'async_trait>(
        &'life0 self,
    ) -> Pin<Box<dyn Future<Output = Result<(), Error>> + Send + 'async_trait>>
       where 'life0: 'async_trait,
             Self: 'async_trait;
    fn len<'life0, 'async_trait>(
        &'life0 self,
    ) -> Pin<Box<dyn Future<Output = Result<usize, Error>> + Send + 'async_trait>>
       where 'life0: 'async_trait,
             Self: 'async_trait;
    fn name(&self) -> &'static str;

    // Provided method
    fn is_empty<'life0, 'async_trait>(
        &'life0 self,
    ) -> Pin<Box<dyn Future<Output = Result<bool, Error>> + Send + 'async_trait>>
       where 'life0: 'async_trait,
             Self: 'async_trait { ... }
}

Required Methods

fn get<'life0, 'life1, 'async_trait>( &'life0 self, key: &'life1 CacheKey, ) -> Pin<Box<dyn Future<Output = Result<Option<Vec<u8>>, Error>> + Send + 'async_trait>>

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

fn set<'life0, 'life1, 'life2, 'async_trait>( &'life0 self, key: &'life1 CacheKey, value: &'life2 [u8], ttl: Duration, ) -> Pin<Box<dyn Future<Output = Result<(), Error>> + Send + 'async_trait>>

where 'life0: 'async_trait, 'life1: 'async_trait, 'life2: 'async_trait, Self: 'async_trait,

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

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

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

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

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

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

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

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

fn name(&self) -> &'static str

Provided Methods

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

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

Implementors

impl CacheBackend for MemoryCache

impl CacheBackend for NullCache