Struct AutoSaved 

pub struct AutoSaved<T> { /* private fields */ }

A typed value that can be explicitly persisted to a key-value store.

The engine calls Self::persist on every PersistState event when Phase 2 wires events to storage.

Implementations

impl<T: Serialize + DeserializeOwned + Send + Sync + 'static> AutoSaved<T>

pub async fn open( store: Arc<dyn KeyValueStore>, key: impl Into<String>, default: T, ) -> StorageResult<Self>

Opens a persisted value, falling back to default when the key is absent.

pub async fn get(&self) -> T

where T: Clone,

Clones and returns the current value.

pub async fn set(&self, value: T)

Replaces the current in-memory value without persisting it.

pub async fn update<F: FnOnce(&mut T) + Send>(&self, f: F)

Mutates the current in-memory value without persisting it.

pub async fn persist(&self) -> StorageResult<()>

Serializes and persists the current value as JSON.

Trait Implementations

impl<T> Debug for AutoSaved<T>

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

Formats the value using the given formatter.