Struct SessionProjection 

pub struct SessionProjection { /* private fields */ }

A Projection that folds the agent vocabulary for a single namespace into a SessionState — the session transcript and status. Events from other namespaces are skipped.

Implementations

impl SessionProjection

pub fn new(namespace: impl Into<String>) -> Self

Creates an empty projection scoped to namespace.

Trait Implementations

impl NamespaceScoped for SessionProjection

fn new_for(namespace: &str) -> Self

Constructs the projection already scoped to namespace.

impl Projection for SessionProjection

type Body = EventBody

The payload type this projection folds. Ties the projection to a Salamander<B> with the same B: you can only build a projection from a log whose events carry the payload it knows how to apply. Expressed as an associated type (not a trait parameter) so the generic replay helpers below read as P: Projection with no extra B to thread through.

type State = SessionState

The derived state this projection maintains.

fn apply(&mut self, event: &Event<EventBody>)

Apply one event. MUST be deterministic and infallible on valid input: same events in same order => same state, every time, on every machine (DESIGN.md §6, INV-1).

fn cursor(&self) -> u64

Current cursor: all events with offset < cursor have been applied.

fn state(&self) -> &Self::State

Read access to derived state.