Struct MemoryCache 

pub struct MemoryCache { /* private fields */ }

Lean in-process cache store adapter for local development and tests.

Implementations

impl MemoryCache

pub fn new(prefix: Option<String>, max_entries: Option<usize>) -> Self

Create an empty in-memory cache.

pub fn new_with_clock( prefix: Option<String>, max_entries: Option<usize>, clock: impl Fn() -> Instant + Send + Sync + 'static, ) -> Self

Create an in-memory cache with an injected clock.

This is primarily useful for deterministic tests and simulations that need to advance cache expiry without sleeping.

Trait Implementations

impl CacheStore for MemoryCache

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

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

Retrieve a string value by key.

fn set<'life0, 'life1, 'life2, 'async_trait>( &'life0 self, key: &'life1 str, val: &'life2 str, ttl: Option<Duration>, ) -> Pin<Box<dyn Future<Output = AppResult<()>> + Send + 'async_trait>>

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

Store a string value with an optional TTL.

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

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

Delete a key and report whether it existed.

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

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

Check whether a key currently exists.

impl Default for MemoryCache

fn default() -> Self

Returns the “default value” for a type.