Trait DirectWritableKeyValueStore

pub trait DirectWritableKeyValueStore: WithError {
    type Batch: SimplifiedBatch + Serialize + DeserializeOwned + Default;

    const MAX_BATCH_SIZE: usize;
    const MAX_BATCH_TOTAL_SIZE: usize;
    const MAX_VALUE_SIZE: usize;

    // Required method
    fn write_batch<'life0, 'async_trait>(
        &'life0 self,
        batch: Self::Batch,
    ) -> Pin<Box<dyn Future<Output = Result<(), Self::Error>> + Send + 'async_trait>>
       where Self: 'async_trait,
             'life0: 'async_trait;
}

Low-level, asynchronous direct write key-value operations with simplified batch

Required Associated Constants

const MAX_BATCH_SIZE: usize

The maximal number of items in a batch.

const MAX_BATCH_TOTAL_SIZE: usize

The maximal number of bytes of a batch.

const MAX_VALUE_SIZE: usize

The maximal size of values that can be stored.

Required Associated Types

type Batch: SimplifiedBatch + Serialize + DeserializeOwned + Default

The batch type.

Required Methods

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

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

Writes the batch to the database.

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 DirectWritableKeyValueStore for DynamoDbStoreInternal

const MAX_BATCH_SIZE: usize = 100usize

const MAX_BATCH_TOTAL_SIZE: usize = 4_000_000usize

const MAX_VALUE_SIZE: usize = 408_569usize

type Batch = SimpleUnorderedBatch

impl DirectWritableKeyValueStore for ScyllaDbStoreInternal

const MAX_BATCH_SIZE: usize = 5_000usize

const MAX_BATCH_TOTAL_SIZE: usize = 16_773_216usize

const MAX_VALUE_SIZE: usize = 16_752_727usize

type Batch = UnorderedBatch