Struct RedisCache 

pub struct RedisCache<V> { /* private fields */ }

Redis-backed cache using JSON serialisation.

Each cache operation opens a new multiplexed connection. TTL is applied per entry via SET … EX.

entry_count() always returns 0; Redis DBSIZE counts all keys and cannot be scoped to this cache without a full scan.

Requires the cache-redis feature.

Implementations

impl<V> RedisCache<V>

pub fn new(url: &str, ttl: Duration) -> Result<Self, RedisError>

Open a Redis connection pool at url.

Trait Implementations

impl<V> CacheBackend<V> for RedisCache<V>

where V: Serialize + DeserializeOwned + Send + Sync + 'static,

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

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

Return the cached value for key, or None on a miss.

fn insert<'life0, 'async_trait>( &'life0 self, key: String, value: V, ) -> Pin<Box<dyn Future<Output = ()> + Send + 'async_trait>>

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

Store value under key.

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

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

Remove all entries.

fn entry_count(&self) -> u64

Return the number of live entries (best-effort; may return 0 for some backends).

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

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

Flush any pending internal tasks (useful for testing).

impl<V: Clone> Clone for RedisCache<V>

fn clone(&self) -> RedisCache<V>

Returns a duplicate of the value.

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

Performs copy-assignment from source.