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Cache

Trait Cache 

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

    // Provided methods
    fn increment<'life0, 'life1, 'async_trait>(
        &'life0 self,
        _key: &'life1 str,
        _delta: i64,
    ) -> Pin<Box<dyn Future<Output = Result<i64, Error>> + Send + 'async_trait>>
       where Self: 'async_trait,
             'life0: 'async_trait,
             'life1: 'async_trait { ... }
    fn ttl<'life0, 'life1, 'async_trait>(
        &'life0 self,
        _key: &'life1 str,
    ) -> Pin<Box<dyn Future<Output = Result<Option<Duration>, Error>> + Send + 'async_trait>>
       where Self: 'async_trait,
             'life0: 'async_trait,
             'life1: 'async_trait { ... }
    fn multi_get<'life0, 'life1, 'life2, 'async_trait>(
        &'life0 self,
        _keys: &'life1 [&'life2 str],
    ) -> Pin<Box<dyn Future<Output = Result<Vec<Option<Vec<u8>>>, Error>> + Send + 'async_trait>>
       where Self: 'async_trait,
             'life0: 'async_trait,
             'life1: 'async_trait,
             'life2: 'async_trait { ... }
}

Required Methods§

Source

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

Source

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

Source

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

Provided Methods§

Source

fn increment<'life0, 'life1, 'async_trait>( &'life0 self, _key: &'life1 str, _delta: i64, ) -> Pin<Box<dyn Future<Output = Result<i64, Error>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

Atomically increment the value at key by delta, returning the new value. Backends that cannot increment return an error.

Source

fn ttl<'life0, 'life1, 'async_trait>( &'life0 self, _key: &'life1 str, ) -> Pin<Box<dyn Future<Output = Result<Option<Duration>, Error>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

Returns the remaining time-to-live of key, or None if the key does not exist.

Source

fn multi_get<'life0, 'life1, 'life2, 'async_trait>( &'life0 self, _keys: &'life1 [&'life2 str], ) -> Pin<Box<dyn Future<Output = Result<Vec<Option<Vec<u8>>>, Error>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait, 'life2: 'async_trait,

Fetch multiple keys in one round trip. Missing keys yield None.

Dyn Compatibility§

This trait is dyn compatible.

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

Implementors§