Struct linera_views::views::key_value_store_view::ViewContainer

pub struct ViewContainer<C> { /* private fields */ }

A virtual DB client using a KeyValueStoreView as a backend (testing only).

Implementations

impl<C> ViewContainer<C>

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

pub async fn new(context: C) -> Result<Self, ViewError>

Creates a ViewContainer.

Trait Implementations

impl<C: Clone> Clone for ViewContainer<C>

fn clone(&self) -> ViewContainer<C>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<C: Debug> Debug for ViewContainer<C>

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

Formats the value using the given formatter.

impl<C> ReadableKeyValueStore for ViewContainer<C>

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

const MAX_KEY_SIZE: usize = C::MAX_KEY_SIZE

The maximal size of keys that can be stored.

type Keys = Vec<Vec<u8>>

Returns type for key search operations.

type KeyValues = Vec<(Vec<u8>, Vec<u8>)>

Returns type for key-value search operations.

fn max_stream_queries(&self) -> usize

Retrieve the number of stream queries.

async fn read_value_bytes( &self, key: &[u8], ) -> Result<Option<Vec<u8>>, ViewContainerError>

Retrieves a Vec<u8> from the database using the provided key.

async fn contains_key(&self, key: &[u8]) -> Result<bool, ViewContainerError>

Tests whether a key exists in the database

async fn contains_keys( &self, keys: Vec<Vec<u8>>, ) -> Result<Vec<bool>, ViewContainerError>

Tests whether a list of keys exist in the database

async fn read_multi_values_bytes( &self, keys: Vec<Vec<u8>>, ) -> Result<Vec<Option<Vec<u8>>>, ViewContainerError>

Retrieves multiple Vec<u8> from the database using the provided keys.

async fn find_keys_by_prefix( &self, key_prefix: &[u8], ) -> Result<Self::Keys, ViewContainerError>

Finds the key matching the prefix. The prefix is not included in the returned keys.

async fn find_key_values_by_prefix( &self, key_prefix: &[u8], ) -> Result<Self::KeyValues, ViewContainerError>

Finds the (key,value) pairs matching the prefix. The prefix is not included in the returned keys.

fn read_value<V: DeserializeOwned>( &self, key: &[u8], ) -> impl Future<Output = Result<Option<V>, Self::Error>> + Send

where Self: Sync,

Reads a single key and deserializes the result if present.

fn read_multi_values<V: DeserializeOwned + Send>( &self, keys: Vec<Vec<u8>>, ) -> impl Future<Output = Result<Vec<Option<V>>, Self::Error>> + Send

where Self: Sync,

Reads multiple keys and deserializes the results if present.

impl<C> WithError for ViewContainer<C>

type Error = ViewContainerError

The error type.

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

The maximal size of values that can be stored.

async fn write_batch(&self, batch: Batch) -> Result<(), ViewContainerError>

Writes the batch in the database.

async fn clear_journal(&self) -> Result<(), ViewContainerError>

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