Struct StateStore 

pub struct StateStore { /* private fields */ }

Thread-safe state store with transition logging.

All reads and writes go through this store. Every write produces a StateTransition record for audit and replay.

Implementations

impl StateStore

pub fn new() -> Self

pub fn get(&self, key: &str) -> Option<Value>

pub fn get_or(&self, key: &str, default: Value) -> Value

pub fn exists(&self, key: &str) -> bool

pub fn set(&self, key: &str, value: Value, action_id: &str) -> StateTransition

pub fn delete(&self, key: &str, action_id: &str) -> Option<StateTransition>

pub fn snapshot(&self) -> HashMap<String, Value>

Deep clone of current state.

pub fn restore(&self, snapshot: HashMap<String, Value>, transition_count: usize)

Restore state from a snapshot, truncating transitions.

pub fn transition_count(&self) -> usize

pub fn transitions(&self) -> Vec<StateTransition>

pub fn transitions_since(&self, index: usize) -> Vec<StateTransition>

pub fn keys(&self) -> Vec<String>

Trait Implementations

impl Default for StateStore

fn default() -> Self

Returns the “default value” for a type.