Struct StateStore 

pub struct StateStore { /* private fields */ }

Shared runtime state store keyed by node id.

Implementations

impl StateStore

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

pub fn get_result(&self, key: &str) -> Result<Option<Value>, String>

Fallible getter for raw values.

pub fn get_checked<T: DeserializeOwned>( &self, key: &str, ) -> Result<Option<T>, String>

Fallible getter with error context.

pub fn get_typed<T: DeserializeOwned>(&self, key: &str) -> Option<T>

pub fn set(&self, key: &str, value: Value) -> Result<(), String>

pub fn set_typed<T: Serialize>( &self, key: &str, value: &T, ) -> Result<(), String>

pub fn dump_json(&self) -> Result<String, String>

pub fn load_json(&self, json: &str) -> Result<(), String>

Trait Implementations

impl Clone for StateStore

fn clone(&self) -> StateStore

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Default for StateStore

fn default() -> StateStore

Returns the “default value” for a type.