Struct akd::storage::memory::AsyncInMemoryDatabase

pub struct AsyncInMemoryDatabase { /* private fields */ }

This struct represents a basic in-memory database.

Implementations

impl AsyncInMemoryDatabase

pub fn new() -> Self

Creates a new in memory db

Trait Implementations

impl Clone for AsyncInMemoryDatabase

fn clone(&self) -> Self

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for AsyncInMemoryDatabase

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for AsyncInMemoryDatabase

fn default() -> Self

Returns the “default value” for a type.

impl Storage for AsyncInMemoryDatabase

fn get<'life0, 'life1, 'async_trait, St>(
    &'life0 self,
    id: &'life1 St::Key
) -> Pin<Box<dyn Future<Output = Result<DbRecord, StorageError>> + Send + 'async_trait>> where
    St: 'async_trait + Storable,
    'life0: 'async_trait,
    'life1: 'async_trait,
    Self: 'async_trait, 

Retrieve a stored record from the data layer

fn get_direct<'life0, 'life1, 'async_trait, St>(
    &'life0 self,
    id: &'life1 St::Key
) -> Pin<Box<dyn Future<Output = Result<DbRecord, StorageError>> + Send + 'async_trait>> where
    St: 'async_trait + Storable,
    'life0: 'async_trait,
    'life1: 'async_trait,
    Self: 'async_trait, 

Retrieve a record from the data layer, ignoring any caching or transaction pending

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

Flush the caching of objects (if present)

fn batch_get<'life0, 'life1, 'async_trait, St>(
    &'life0 self,
    ids: &'life1 [St::Key]
) -> Pin<Box<dyn Future<Output = Result<Vec<DbRecord>, StorageError>> + Send + 'async_trait>> where
    St: 'async_trait + Storable,
    'life0: 'async_trait,
    'life1: 'async_trait,
    Self: 'async_trait, 

Retrieve a batch of records by id

fn get_user_data<'life0, 'life1, 'async_trait>(
    &'life0 self,
    username: &'life1 AkdLabel
) -> Pin<Box<dyn Future<Output = Result<KeyData, StorageError>> + Send + 'async_trait>> where
    'life0: 'async_trait,
    'life1: 'async_trait,
    Self: 'async_trait, 

Retrieve the user data for a given user

fn get_user_state<'life0, 'life1, 'async_trait>(
    &'life0 self,
    username: &'life1 AkdLabel,
    flag: ValueStateRetrievalFlag
) -> Pin<Box<dyn Future<Output = Result<ValueState, StorageError>> + Send + 'async_trait>> where
    'life0: 'async_trait,
    'life1: 'async_trait,
    Self: 'async_trait, 

Retrieve a specific state for a given user

fn log_metrics<'life0, 'async_trait>(
    &'life0 self,
    level: Level
) -> Pin<Box<dyn Future<Output = ()> + Send + 'async_trait>> where
    'life0: 'async_trait,
    Self: 'async_trait, 

Log some information about the cache (hit rate, etc)

fn begin_transaction<'life0, 'async_trait>(
    &'life0 self
) -> Pin<Box<dyn Future<Output = bool> + Send + 'async_trait>> where
    'life0: 'async_trait,
    Self: 'async_trait, 

Start a transaction in the storage layer

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

Commit a transaction in the storage layer

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

Rollback a transaction

fn is_transaction_active<'life0, 'async_trait>(
    &'life0 self
) -> Pin<Box<dyn Future<Output = bool> + Send + 'async_trait>> where
    'life0: 'async_trait,
    Self: 'async_trait, 

Retrieve a flag determining if there is a transaction active

fn set<'life0, 'async_trait>(
    &'life0 self,
    record: DbRecord
) -> Pin<Box<dyn Future<Output = Result<(), StorageError>> + Send + 'async_trait>> where
    'life0: 'async_trait,
    Self: 'async_trait, 

Set a record in the data layer

fn batch_set<'life0, 'async_trait>(
    &'life0 self,
    records: Vec<DbRecord>
) -> Pin<Box<dyn Future<Output = Result<(), StorageError>> + Send + 'async_trait>> where
    'life0: 'async_trait,
    Self: 'async_trait, 

Set multiple records in transactional operation

fn tombstone_value_states<'life0, 'life1, 'async_trait>(
    &'life0 self,
    keys: &'life1 [ValueStateKey]
) -> Pin<Box<dyn Future<Output = Result<(), StorageError>> + Send + 'async_trait>> where
    'life0: 'async_trait,
    'life1: 'async_trait,
    Self: 'async_trait, 

Convert the given value state’s into tombstones, replacing the plaintext value with the tombstone key array

fn get_user_state_versions<'life0, 'life1, 'async_trait>(
    &'life0 self,
    keys: &'life1 [AkdLabel],
    flag: ValueStateRetrievalFlag
) -> Pin<Box<dyn Future<Output = Result<HashMap<AkdLabel, u64>, StorageError>> + Send + 'async_trait>> where
    'life0: 'async_trait,
    'life1: 'async_trait,
    Self: 'async_trait, 

Retrieve the user -> state version mapping in bulk. This is the same as get_user_states but with less data retrieved from the storage layer

fn get_epoch_lte_epoch<'life0, 'async_trait>(
    &'life0 self,
    node_label: NodeLabel,
    epoch_in_question: u64
) -> Pin<Box<dyn Future<Output = Result<u64, StorageError>> + Send + 'async_trait>> where
    'life0: 'async_trait,
    Self: 'async_trait, 

Retrieve the last epoch <= epoch_in_question where the node with node_key was edited

impl Send for AsyncInMemoryDatabase

impl Sync for AsyncInMemoryDatabase