Enum DbCollection 

pub enum DbCollection {
    SQLite(SqliteCollection),
}

Variants

SQLite(SqliteCollection)

Trait Implementations

impl Collection for DbCollection

fn name(&self) -> &str

Returns the name identifier of this collection.

fn get(&self, key: &str) -> Result<Vec<u8>, StoreError>

Returns the value stored under key.

fn put(&mut self, key: &str, data: &[u8]) -> Result<(), StoreError>

Associates data with key, inserting or replacing any previous value.

fn del(&mut self, key: &str) -> Result<(), StoreError>

Removes the entry for key.

fn iter<'a>( &'a self, reverse: bool, ) -> Result<Box<dyn Iterator<Item = Result<(String, Vec<u8>), StoreError>> + 'a>, StoreError>

Returns an iterator over all key-value pairs.

fn purge(&mut self) -> Result<(), StoreError>

Removes all entries from the collection.

fn last(&self) -> Result<Option<(String, Vec<u8>)>, StoreError>

Returns the last key-value pair in insertion/sort order, or None if the collection is empty.

fn get_by_range( &self, from: Option<String>, quantity: isize, ) -> Result<Vec<Vec<u8>>, Error>

Returns at most quantity.abs() values, optionally starting after from.

impl DbManager<DbCollection, DbCollection> for Database

fn create_collection( &self, name: &str, prefix: &str, ) -> Result<DbCollection, StoreError>

Creates a new ordered key-value collection, typically used to store events.

fn create_state( &self, name: &str, prefix: &str, ) -> Result<DbCollection, StoreError>

Creates a single-value state store, typically used to store actor snapshots.

fn stop(&mut self) -> Result<(), StoreError>

Optional cleanup hook called when the database manager should shut down.

impl State for DbCollection

fn name(&self) -> &str

Returns the name identifier of this state storage unit.

fn get(&self) -> Result<Vec<u8>, StoreError>

Returns the currently stored bytes.

fn put(&mut self, data: &[u8]) -> Result<(), StoreError>

Stores data as the current value, replacing any previous one.

fn del(&mut self) -> Result<(), StoreError>

Deletes the current value.

fn purge(&mut self) -> Result<(), StoreError>

Removes all data from this state store. Succeeds silently if the store is already empty.