Struct MemoryDriver 

pub struct MemoryDriver { /* private fields */ }

In-process memory driver.

Implementations

impl MemoryDriver

pub fn new() -> Self

Creates an empty memory driver.

pub fn len(&self) -> usize

Returns the number of records currently retained by the driver.

Expired records may still be retained until overwritten, deleted, or the driver is dropped.

pub fn is_empty(&self) -> bool

Returns true when no records are currently retained by the driver.

pub fn clear(&self)

Removes all retained records.

Trait Implementations

impl Clone for MemoryDriver

fn clone(&self) -> MemoryDriver

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MemoryDriver

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

Formats the value using the given formatter.

impl Default for MemoryDriver

fn default() -> MemoryDriver

Returns the “default value” for a type.

impl Driver for MemoryDriver

fn name(&self) -> &'static str

Stable driver name.

fn capabilities(&self) -> Capabilities

Reports supported driver behaviour.

fn initialise<'life0, 'async_trait>( &'life0 self, ) -> Pin<Box<dyn Future<Output = Result<()>> + Send + 'async_trait>>

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

Prepares the driver for use.

fn finalise<'life0, 'async_trait>( &'life0 self, ) -> Pin<Box<dyn Future<Output = Result<()>> + Send + 'async_trait>>

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

Releases driver resources.

fn get<'life0, 'life1, 'life2, 'life3, 'life4, 'async_trait>( &'life0 self, namespace: &'life1 Namespace, collection: &'life2 CollectionName, key: &'life3 Key, options: &'life4 ReadOptions, ) -> Pin<Box<dyn Future<Output = Result<Option<StoredValue>>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait, 'life2: 'async_trait, 'life3: 'async_trait, 'life4: 'async_trait,

Reads a stored value.

fn set<'life0, 'life1, 'life2, 'life3, 'life4, 'async_trait>( &'life0 self, namespace: &'life1 Namespace, collection: &'life2 CollectionName, key: &'life3 Key, value: StoredValue, options: &'life4 WriteOptions, ) -> Pin<Box<dyn Future<Output = Result<()>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait, 'life2: 'async_trait, 'life3: 'async_trait, 'life4: 'async_trait,

Writes a stored value.

fn delete<'life0, 'life1, 'life2, 'life3, 'life4, 'async_trait>( &'life0 self, namespace: &'life1 Namespace, collection: &'life2 CollectionName, key: &'life3 Key, options: &'life4 DeleteOptions, ) -> Pin<Box<dyn Future<Output = Result<bool>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait, 'life2: 'async_trait, 'life3: 'async_trait, 'life4: 'async_trait,

Deletes a stored value and returns whether a value was removed.

fn exists<'life0, 'life1, 'life2, 'life3, 'async_trait>( &'life0 self, namespace: &'life1 Namespace, collection: &'life2 CollectionName, key: &'life3 Key, ) -> Pin<Box<dyn Future<Output = Result<bool>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait, 'life2: 'async_trait, 'life3: 'async_trait,

Returns whether a stored value exists.

fn scan_prefix<'life0, 'life1, 'life2, 'life3, 'async_trait>( &'life0 self, namespace: &'life1 Namespace, collection: &'life2 CollectionName, options: &'life3 ScanOptions, ) -> Pin<Box<dyn Future<Output = Result<Vec<(Key, StoredValue)>>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait, 'life2: 'async_trait, 'life3: 'async_trait,

Scans values by key prefix.

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

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

Applies a batch of write operations.