Struct CacheService 

pub struct CacheService { /* private fields */ }

缓存服务 (提供泛型封装)

Implementations

impl CacheService

pub fn new(backend: Box<dyn CacheBackend>) -> Self

从后端创建缓存服务

pub async fn get<T: DeserializeOwned>( &self, key: &str, ) -> CacheResult<Option<T>>

获取缓存值

pub async fn set<T: Serialize + ?Sized>( &self, key: &str, value: &T, ttl: Option<Duration>, ) -> CacheResult<()>

设置缓存值

pub async fn delete(&self, key: &str) -> CacheResult<bool>

删除缓存键

pub async fn exists(&self, key: &str) -> CacheResult<bool>

检查键是否存在

pub async fn expire(&self, key: &str, ttl: Duration) -> CacheResult<bool>

设置键的过期时间

pub async fn ttl(&self, key: &str) -> CacheResult<Option<Duration>>

获取键的剩余过期时间

pub async fn mget<T: DeserializeOwned>( &self, keys: &[&str], ) -> CacheResult<Vec<Option<T>>>

批量获取缓存值

pub async fn mset<T: Serialize + ?Sized>( &self, items: &[(&str, &T)], ttl: Option<Duration>, ) -> CacheResult<()>

批量设置缓存值

pub async fn mdelete(&self, keys: &[&str]) -> CacheResult<u64>

批量删除缓存键

pub async fn incr(&self, key: &str, delta: i64) -> CacheResult<i64>

自增操作

pub async fn decr(&self, key: &str, delta: i64) -> CacheResult<i64>

自减操作

pub async fn clear(&self) -> CacheResult<()>

清空缓存

pub fn config(&self) -> &CacheConfig

获取配置

pub fn build_key(&self, key: &str) -> String

构建带前缀的完整键