KeyValueStore

kotoba_state_graph

Trait KeyValueStore 

Source 
pub trait KeyValueStore: Send + Sync {
    // Required methods
    fn put<'life0, 'life1, 'life2, 'async_trait>(
        &'life0 self,
        key: &'life1 [u8],
        value: &'life2 [u8],
    ) -> Pin<Box<dyn Future<Output = Result<(), Error>> + Send + 'async_trait>>
       where 'life0: 'async_trait,
             'life1: 'async_trait,
             'life2: 'async_trait,
             Self: 'async_trait;
    fn get<'life0, 'life1, 'async_trait>(
        &'life0 self,
        key: &'life1 [u8],
    ) -> Pin<Box<dyn Future<Output = Result<Option<Vec<u8>>, Error>> + Send + 'async_trait>>
       where 'life0: 'async_trait,
             'life1: 'async_trait,
             Self: 'async_trait;
    fn delete<'life0, 'life1, 'async_trait>(
        &'life0 self,
        key: &'life1 [u8],
    ) -> Pin<Box<dyn Future<Output = Result<(), Error>> + Send + 'async_trait>>
       where 'life0: 'async_trait,
             'life1: 'async_trait,
             Self: 'async_trait;
    fn scan<'life0, 'life1, 'async_trait>(
        &'life0 self,
        prefix: &'life1 [u8],
    ) -> Pin<Box<dyn Future<Output = Result<Vec<(Vec<u8>, Vec<u8>)>, Error>> + Send + 'async_trait>>
       where 'life0: 'async_trait,
             'life1: 'async_trait,
             Self: 'async_trait;

    // Provided methods
    fn backend_type(&self) -> StorageBackend { ... }
    fn stats<'life0, 'async_trait>(
        &'life0 self,
    ) -> Pin<Box<dyn Future<Output = Result<StorageStats, Error>> + Send + 'async_trait>>
       where 'life0: 'async_trait,
             Self: 'async_trait { ... }
}
Expand description

A generic key-value store trait.

Required Methods§

Source

fn put<'life0, 'life1, 'life2, 'async_trait>( &'life0 self, key: &'life1 [u8], value: &'life2 [u8], ) -> Pin<Box<dyn Future<Output = Result<(), Error>> + Send + 'async_trait>>
where 'life0: 'async_trait, 'life1: 'async_trait, 'life2: 'async_trait, Self: 'async_trait,

Puts a key-value pair into the store.

Source

fn get<'life0, 'life1, 'async_trait>( &'life0 self, key: &'life1 [u8], ) -> Pin<Box<dyn Future<Output = Result<Option<Vec<u8>>, Error>> + Send + 'async_trait>>
where 'life0: 'async_trait, 'life1: 'async_trait, Self: 'async_trait,

Gets a value for a given key.

Source

fn delete<'life0, 'life1, 'async_trait>( &'life0 self, key: &'life1 [u8], ) -> Pin<Box<dyn Future<Output = Result<(), Error>> + Send + 'async_trait>>
where 'life0: 'async_trait, 'life1: 'async_trait, Self: 'async_trait,

Deletes a key-value pair from the store.

Source

fn scan<'life0, 'life1, 'async_trait>( &'life0 self, prefix: &'life1 [u8], ) -> Pin<Box<dyn Future<Output = Result<Vec<(Vec<u8>, Vec<u8>)>, Error>> + Send + 'async_trait>>
where 'life0: 'async_trait, 'life1: 'async_trait, Self: 'async_trait,

Scans for key-value pairs with a given prefix.

Provided Methods§

Source

fn backend_type(&self) -> StorageBackend

Returns the storage backend type

Source

fn stats<'life0, 'async_trait>( &'life0 self, ) -> Pin<Box<dyn Future<Output = Result<StorageStats, Error>> + Send + 'async_trait>>
where 'life0: 'async_trait, Self: 'async_trait,

Returns storage statistics

Implementors§