Struct MemoryStateStore 

pub struct MemoryStateStore { /* private fields */ }

In-memory StateStore — the default backend.

States live as Arc<Value> so reads are zero-copy (just Arc::clone) and multiple consumers can hold references concurrently.

Implementations

impl MemoryStateStore

pub fn new() -> Self

Trait Implementations

impl Default for MemoryStateStore

fn default() -> MemoryStateStore

Returns the “default value” for a type.

impl StateStore for MemoryStateStore

fn get(&self, node_id: &str) -> Result<Option<Arc<Value>>>

Fetch the state for node_id, if present.

fn set(&self, node_id: &str, state: Value) -> Result<()>

Store state under node_id, replacing any previous value.

fn remove(&self, node_id: &str) -> Result<()>

Remove the state for node_id, if present.

fn clear(&self) -> Result<()>

Drop all stored states.

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

List all node ids that currently have a stored state.