pub struct Cache { /* private fields */ }Expand description
Public handle. Owns its backend behind an Arc so views can clone
it freely (typically stashed in the request context or accessed via
the ambient [AMBIENT_CACHE]).
Implementations§
Source§impl Cache
impl Cache
Sourcepub fn memory() -> Self
pub fn memory() -> Self
Build a cache backed by a freshly-allocated MemoryBackend.
Sourcepub async fn sqlite(pool: SqlitePool) -> Result<Self, CacheError>
pub async fn sqlite(pool: SqlitePool) -> Result<Self, CacheError>
Build a cache backed by a SQLite table. The constructor creates the table on first call; it’s idempotent.
Sourcepub fn with_backend(backend: Arc<dyn CacheBackend>) -> Self
pub fn with_backend(backend: Arc<dyn CacheBackend>) -> Self
Wrap an arbitrary backend.
Sourcepub async fn get<T: DeserializeOwned>(&self, key: &str) -> Option<T>
pub async fn get<T: DeserializeOwned>(&self, key: &str) -> Option<T>
Look up a key, deserialise to T. Returns None on miss, on expiry, or on a decode error (the entry is treated as poisoned and ignored rather than crashing the caller).
Sourcepub async fn set<T: Serialize + ?Sized>(
&self,
key: &str,
value: &T,
ttl: Option<Duration>,
) -> Result<(), Error>
pub async fn set<T: Serialize + ?Sized>( &self, key: &str, value: &T, ttl: Option<Duration>, ) -> Result<(), Error>
Set a key. The value is serialised with serde_json. ttl = None means no expiry.
pub async fn delete(&self, key: &str)
pub async fn clear(&self)
Trait Implementations§
Auto Trait Implementations§
impl !RefUnwindSafe for Cache
impl !UnwindSafe for Cache
impl Freeze for Cache
impl Send for Cache
impl Sync for Cache
impl Unpin for Cache
impl UnsafeUnpin for Cache
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