Struct DatabaseStorage 

pub struct DatabaseStorage {}

数据库存储实现（占位符）

Implementations

impl DatabaseStorage

pub async fn new(_database_url: &str) -> StorageResult<Self>

创建新的数据库存储

Trait Implementations

impl SaStorage for DatabaseStorage

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

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

获取值

fn set<'life0, 'life1, 'life2, 'async_trait>( &'life0 self, _key: &'life1 str, _value: &'life2 str, _ttl: Option<Duration>, ) -> Pin<Box<dyn Future<Output = StorageResult<()>> + Send + 'async_trait>>

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

设置值

fn delete<'life0, 'life1, 'async_trait>( &'life0 self, _key: &'life1 str, ) -> Pin<Box<dyn Future<Output = StorageResult<()>> + Send + 'async_trait>>

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

删除值

fn exists<'life0, 'life1, 'async_trait>( &'life0 self, _key: &'life1 str, ) -> Pin<Box<dyn Future<Output = StorageResult<bool>> + Send + 'async_trait>>

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

检查键是否存在

fn expire<'life0, 'life1, 'async_trait>( &'life0 self, _key: &'life1 str, _ttl: Duration, ) -> Pin<Box<dyn Future<Output = StorageResult<()>> + Send + 'async_trait>>

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

设置过期时间

fn ttl<'life0, 'life1, 'async_trait>( &'life0 self, _key: &'life1 str, ) -> Pin<Box<dyn Future<Output = StorageResult<Option<Duration>>> + Send + 'async_trait>>

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

获取剩余过期时间

fn clear<'life0, 'async_trait>( &'life0 self, ) -> Pin<Box<dyn Future<Output = StorageResult<()>> + Send + 'async_trait>>

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

清空所有数据（谨慎使用）

fn mget<'life0, 'life1, 'life2, 'async_trait>( &'life0 self, keys: &'life1 [&'life2 str], ) -> Pin<Box<dyn Future<Output = Result<Vec<Option<String>>, StorageError>> + Send + 'async_trait>>

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

批量获取

fn mset<'life0, 'life1, 'life2, 'life3, 'async_trait>( &'life0 self, items: &'life1 [(&'life2 str, &'life3 str)], ttl: Option<Duration>, ) -> Pin<Box<dyn Future<Output = Result<(), StorageError>> + Send + 'async_trait>>

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

批量设置

fn mdel<'life0, 'life1, 'life2, 'async_trait>( &'life0 self, keys: &'life1 [&'life2 str], ) -> Pin<Box<dyn Future<Output = Result<(), StorageError>> + Send + 'async_trait>>

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

批量删除

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

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

原子递增

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

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

原子递减