Struct NoCache 

pub struct NoCache;

A cache that stores nothing: every read misses, every write succeeds.

Trait Implementations

impl Cache for NoCache

fn get_entry<'life0, 'life1, 'async_trait>( &'life0 self, _key: &'life1 CacheKey, ) -> Pin<Box<dyn Future<Output = Result<Option<CacheEntry>>> + Send + 'async_trait>>

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

The stored entry for key (expired or not), if any.

fn put_entry<'life0, 'life1, 'life2, 'async_trait>( &'life0 self, _key: &'life1 CacheKey, _entry: &'life2 CacheEntry, ) -> Pin<Box<dyn Future<Output = Result<()>> + Send + 'async_trait>>

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

Insert or replace the entry for key.

fn index_restaurants<'life0, 'life1, 'async_trait>( &'life0 self, _rows: &'life1 [RestaurantRow], _seen_from: Option<(f64, f64)>, _now: i64, ) -> Pin<Box<dyn Future<Output = Result<()>> + Send + 'async_trait>>

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

Upsert restaurants seen in a list response. seen_from is the delivery location of the request; when given, each row’s distance / ETA / fee are also recorded for that location.

fn index_items<'life0, 'life1, 'async_trait>( &'life0 self, _items: &'life1 [ItemRow], _now: i64, ) -> Pin<Box<dyn Future<Output = Result<()>> + Send + 'async_trait>>

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

Upsert individual items (e.g. dish hits), keeping known categories.

fn index_menu<'life0, 'life1, 'life2, 'life3, 'async_trait>( &'life0 self, _restaurant: &'life1 RestaurantRow, _categories: &'life2 [CategoryRow], _items: &'life3 [ItemRow], _seen_from: Option<(f64, f64)>, _now: i64, ) -> Pin<Box<dyn Future<Output = Result<()>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait, 'life2: 'async_trait, 'life3: 'async_trait,

Store a full menu: the restaurant, its categories (replacing the old ones) and items; items no longer on the menu are removed.

fn search_restaurants<'life0, 'life1, 'async_trait>( &'life0 self, _q: &'life1 RestaurantQuery, ) -> Pin<Box<dyn Future<Output = Result<Vec<RestaurantHit>>> + Send + 'async_trait>>

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

Query restaurants in the catalog.

fn search_items<'life0, 'life1, 'async_trait>( &'life0 self, _q: &'life1 ItemQuery, ) -> Pin<Box<dyn Future<Output = Result<Vec<ItemHit>>> + Send + 'async_trait>>

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

Query menu items in the catalog.

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

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

One restaurant by id.

fn image<'life0, 'life1, 'async_trait>( &'life0 self, _url: &'life1 str, _now: i64, ) -> Pin<Box<dyn Future<Output = Result<Option<CachedImage>>> + Send + 'async_trait>>

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

The stored image for url, marking it recently used.

fn put_image<'life0, 'life1, 'life2, 'life3, 'async_trait>( &'life0 self, _url: &'life1 str, _bytes: &'life2 [u8], _content_type: &'life3 str, _now: i64, ) -> Pin<Box<dyn Future<Output = Result<CachedImage>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait, 'life2: 'async_trait, 'life3: 'async_trait,

Store downloaded image bytes for url.

impl Clone for NoCache

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for NoCache

impl Debug for NoCache

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

Formats the value using the given formatter.

impl Default for NoCache

fn default() -> Self

Returns the “default value” for a type.