Struct InMemoryBackend 

pub struct InMemoryBackend { /* private fields */ }

An in-memory CacheBackend implementation backed by moka.

The backend is cheap to clone and shares a single underlying cache.

Implementations

impl InMemoryBackend

pub fn new(max_capacity: u64) -> Self

Creates a new in-memory cache with the provided max_capacity.

The capacity is expressed in number of cached entries, not bytes.

Trait Implementations

impl CacheBackend for InMemoryBackend

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

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

Fetches a cached entry by key.

fn set<'life0, 'async_trait>( &'life0 self, key: String, entry: CacheEntry, ttl: Duration, stale_for: Duration, ) -> Pin<Box<dyn Future<Output = Result<(), CacheError>> + Send + 'async_trait>>

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

Stores an entry with a time-to-live and additional stale window.

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

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

Invalidates the cache entry for key, if present.

fn get_keys_by_tag<'life0, 'life1, 'async_trait>( &'life0 self, tag: &'life1 str, ) -> Pin<Box<dyn Future<Output = Result<Vec<String>, CacheError>> + Send + 'async_trait>>

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

Retrieves all cache keys associated with a tag.

fn list_tags<'life0, 'async_trait>( &'life0 self, ) -> Pin<Box<dyn Future<Output = Result<Vec<String>, CacheError>> + Send + 'async_trait>>

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

Lists all currently indexed tags.

fn invalidate_by_tag<'life0, 'life1, 'async_trait>( &'life0 self, tag: &'life1 str, ) -> Pin<Box<dyn Future<Output = Result<usize, CacheError>> + Send + 'async_trait>>

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

Invalidates all cache entries associated with a tag.

fn invalidate_by_tags<'life0, 'life1, 'async_trait>( &'life0 self, tags: &'life1 [String], ) -> Pin<Box<dyn Future<Output = Result<usize, CacheError>> + Send + 'async_trait>>

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

Invalidates all cache entries associated with multiple tags.

impl Clone for InMemoryBackend

fn clone(&self) -> InMemoryBackend

Returns a duplicate of the value.

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

Performs copy-assignment from source.