Struct MemoryCache 

pub struct MemoryCache { /* private fields */ }

In-memory LRU cache with TTL support

Thread-safe in-memory cache using LRU eviction policy. Suitable for single-process deployments and development environments.

Implementations

impl MemoryCache

pub fn new(capacity: usize) -> Self

Create a new in-memory cache

Panics

Panics if capacity is zero.

pub fn with_ttl(capacity: usize, default_ttl: Duration) -> Self

Create a new cache with default TTL

Panics

Panics if capacity is zero.

pub async fn stats(&self) -> (usize, usize)

Get cache statistics

Returns (current_size, capacity).

Trait Implementations

impl BaseCache for MemoryCache

fn get<'life0, 'life1, 'life2, 'async_trait>( &'life0 self, namespace: &'life1 str, key: &'life2 str, ) -> Pin<Box<dyn Future<Output = Result<Option<Vec<u8>>, CheckpointError>> + Send + 'async_trait>>

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

Get cached data

fn set<'life0, 'life1, 'life2, 'async_trait>( &'life0 self, namespace: &'life1 str, key: &'life2 str, value: Vec<u8>, ttl: Option<Duration>, ) -> Pin<Box<dyn Future<Output = Result<(), CheckpointError>> + Send + 'async_trait>>

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

Set cached data with optional TTL

fn delete<'life0, 'life1, 'life2, 'async_trait>( &'life0 self, namespace: &'life1 str, key: &'life2 str, ) -> Pin<Box<dyn Future<Output = Result<(), CheckpointError>> + Send + 'async_trait>>

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

Delete cached data

fn clear<'life0, 'life1, 'async_trait>( &'life0 self, namespace: Option<&'life1 str>, ) -> Pin<Box<dyn Future<Output = Result<(), CheckpointError>> + Send + 'async_trait>>

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

Clear cache (optionally by namespace)

impl Clone for MemoryCache

fn clone(&self) -> MemoryCache

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MemoryCache

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for MemoryCache

fn default() -> Self

Returns the “default value” for a type.