Trait SessionVersionCache 

pub trait SessionVersionCache: Send + Sync {
    // Required methods
    fn get<'life0, 'life1, 'async_trait>(
        &'life0 self,
        key: &'life1 str,
    ) -> Pin<Box<dyn Future<Output = Option<i64>> + Send + 'async_trait>>
       where Self: 'async_trait,
             'life0: 'async_trait,
             'life1: 'async_trait;
    fn set<'life0, 'life1, 'async_trait>(
        &'life0 self,
        key: &'life1 str,
        sv: i64,
        ttl: Duration,
    ) -> Pin<Box<dyn Future<Output = ()> + Send + 'async_trait>>
       where Self: 'async_trait,
             'life0: 'async_trait,
             'life1: 'async_trait;
}

Cache abstraction for sv:{ppnum_id} lookups.

Default implementation is MemorySessionVersionCache. Consumers that already run KVRocks/Redis can write their own adapter — the get / set contract is minimal.

get returns None on cache miss OR any transient backend error. set is best-effort and swallows failures internally (a failed set only costs us one extra fetch on the next validate).

Required Methods

fn get<'life0, 'life1, 'async_trait>( &'life0 self, key: &'life1 str, ) -> Pin<Box<dyn Future<Output = Option<i64>> + Send + 'async_trait>>

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

fn set<'life0, 'life1, 'async_trait>( &'life0 self, key: &'life1 str, sv: i64, ttl: Duration, ) -> Pin<Box<dyn Future<Output = ()> + Send + 'async_trait>>

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

Implementors

impl SessionVersionCache for MemorySessionVersionCache