Struct MutableSession 

pub struct MutableSession { /* private fields */ }

Available on crate feature runner only.

MutableSession wraps a session with shared mutable state.

This mirrors ADK-Go’s MutableSession pattern where state changes from events are immediately visible to all agents sharing the same context. This is critical for SequentialAgent/LoopAgent patterns where downstream agents need to read state set by upstream agents via output_key.

Implementations

impl MutableSession

pub fn new(session: Arc<dyn Session>) -> MutableSession

Create a new MutableSession from a session snapshot. The state is copied from the session and becomes mutable.

pub fn apply_state_delta(&self, delta: &HashMap<String, Value>)

Apply state delta from an event to the mutable state. This is called by the Runner when events are yielded.

pub fn append_event(&self, event: Event)

Append an event to the session’s event list. This keeps the in-memory view consistent.

Trait Implementations

impl Session for MutableSession

fn id(&self) -> &str

fn app_name(&self) -> &str

fn user_id(&self) -> &str

fn state(&self) -> &dyn State

fn conversation_history(&self) -> Vec<Content>

Returns the conversation history from this session as Content items

impl State for MutableSession

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

fn set(&mut self, key: String, value: Value)

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