Trait WritableKeyValueStore

pub trait WritableKeyValueStore: WithError + Send {
    const MAX_VALUE_SIZE: usize;

    // Required methods
    fn write_batch(
        &self,
        batch: Batch,
    ) -> impl Future<Output = Result<(), Self::Error>> + Send;
    fn clear_journal(
        &self,
    ) -> impl Future<Output = Result<(), Self::Error>> + Send;
}

Low-level, asynchronous write key-value operations. Useful for storage APIs not based on views.

Required Associated Constants

const MAX_VALUE_SIZE: usize

The maximal size of values that can be stored.

Required Methods

fn write_batch( &self, batch: Batch, ) -> impl Future<Output = Result<(), Self::Error>> + Send

Writes the batch in the database.

fn clear_journal(&self) -> impl Future<Output = Result<(), Self::Error>> + Send

Clears any journal entry that may remain. The journal is located at the root_key.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors

impl WritableKeyValueStore for MemoryStore

const MAX_VALUE_SIZE: usize = 18_446_744_073_709_551_615usize

impl WritableKeyValueStore for RocksDbStoreInternal

const MAX_VALUE_SIZE: usize = 3_221_225_072usize

impl WritableKeyValueStore for LimitedTestMemoryStore

const MAX_VALUE_SIZE: usize = 100usize

impl<C> WritableKeyValueStore for ViewContainer<C>

where C: Context + Sync + Send + Clone, ViewError: From<C::Error>,

const MAX_VALUE_SIZE: usize = C::MAX_VALUE_SIZE

impl<K> WritableKeyValueStore for JournalingKeyValueStore<K>

where K: DirectKeyValueStore + Send + Sync, K::Error: From<JournalConsistencyError>,

const MAX_VALUE_SIZE: usize = K::MAX_VALUE_SIZE

impl<K> WritableKeyValueStore for LruCachingStore<K>

where K: WritableKeyValueStore + Send + Sync,

const MAX_VALUE_SIZE: usize = K::MAX_VALUE_SIZE

impl<K> WritableKeyValueStore for MeteredStore<K>

where K: WritableKeyValueStore + Send + Sync,

const MAX_VALUE_SIZE: usize = K::MAX_VALUE_SIZE

impl<K> WritableKeyValueStore for ValueSplittingStore<K>

where K: WritableKeyValueStore + Send + Sync, K::Error: 'static,

const MAX_VALUE_SIZE: usize = 18_446_744_073_709_551_615usize

impl<S1, S2, A> WritableKeyValueStore for DualStore<S1, S2, A>

where S1: WritableKeyValueStore + WithError + Send + Sync, S2: WritableKeyValueStore + WithError + Send + Sync, A: Send + Sync,

const MAX_VALUE_SIZE: usize = 18_446_744_073_709_551_615usize