Struct MemStorage 

pub struct MemStorage { /* private fields */ }

The MemStorage struct is an in-memory-only implementation of the Storage trait, to be used in testing scenarios.

Implementations

impl MemStorage

pub fn new() -> Self

pub fn committed(&self) -> bool

pub fn len(&self) -> usize

pub fn is_empty(&self) -> bool

Trait Implementations

impl Debug for MemStorage

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

Formats the value using the given formatter.

impl Default for MemStorage

fn default() -> Self

Returns the “default value” for a type.

impl Storage for MemStorage

fn get_string<'a>(&'a self, key: &'a str) -> BoxFuture<'a, Option<String>>

Get a string from the backing store. Returns None if there is no value for the given key.

fn get_int<'a>(&'a self, key: &'a str) -> BoxFuture<'a, Option<i64>>

Get an int from the backing store. Returns None if there is no value for the given key.

fn get_bool<'a>(&'a self, key: &'a str) -> BoxFuture<'a, Option<bool>>

Get a boolean from the backing store. Returns None if there is no value for the given key.

fn set_string<'a>( &'a mut self, key: &'a str, value: &'a str, ) -> BoxFuture<'a, Result<(), Self::Error>>

Set a value to be stored in the backing store. The implementation should cache the value until the |commit()| fn is called, and then persist all cached values at that time.

fn set_int<'a>( &'a mut self, key: &'a str, value: i64, ) -> BoxFuture<'a, Result<(), Self::Error>>

Set a value to be stored in the backing store. The implementation should cache the value until the |commit()| fn is called, and then persist all cached values at that time.

fn set_bool<'a>( &'a mut self, key: &'a str, value: bool, ) -> BoxFuture<'a, Result<(), Self::Error>>

Set a value to be stored in the backing store. The implementation should cache the value until the |commit()| fn is called, and then persist all cached values at that time.

fn commit(&mut self) -> BoxFuture<'_, Result<(), Self::Error>>

Persist all cached values to storage.

type Error = StorageErrors

fn remove<'a>( &'a mut self, key: &'a str, ) -> BoxFuture<'a, Result<(), Self::Error>>

Remove the value for |key| from the backing store. The implementation should cache that the value has been removed until the |commit()| fn is called, and then persist all changes at that time.