Struct Router 

pub struct Router<A: Address, Route: DeliveryRoute<Protocol: Protocol<Addr = A>> + Clone + PartialEq, R> { /* private fields */ }

A pure typed router over one concrete destination protocol.

State is the insertion-ordered recipient product plus a statically selected policy. Inputs are RouterMessage; outputs are the concrete send product selected by Route. Initialization is empty. Successful membership transitions emit no effects. A successful route transfers ownership to one selected member and continues; an empty selection returns RouterError without changing membership. Fan-out is the distinct crate::Topic or crate::PubSub law and therefore does not impose a message-cloning bound on this unicast actor. The router never terminates by policy and requires only Bombay Address and Communication interpretation for its send lane.

Implementations

impl<A, Route, R> Router<A, Route, R>

where A: Address, Route: DeliveryRoute<Protocol: Protocol<Addr = A>> + Clone + PartialEq, R: RoutingStrategy<Route>,

pub fn new(recipients: Vec<Route>, strategy: R) -> Self

Construct a definition from explicit initial membership and policy.

pub fn recipients(&self) -> &[Route]

Current eligible recipients in observable routing order.

pub const fn strategy(&self) -> &R

Borrow the concrete static policy state.

impl<A, Route> Router<A, Route, LeastLoaded>

where A: Address, Route: DeliveryRoute<Protocol: Protocol<Addr = A>> + Clone + PartialEq,

pub fn load_evidence(&self, recipient: &Route) -> Option<LoadEvidence>

Borrow the current load-evidence phase of one member.

Returns None when the route is not a current member. Removal retires its old evidence, so a later addition starts at LoadEvidence::Unknown.

impl<A, Route, K> Router<A, Route, ConsistentHash<K>>

where A: Address, Route: DeliveryRoute<Protocol: Protocol<Addr = A>> + Clone + PartialEq, <Route::Protocol as Protocol>::Msg: RouteKey<K>,

pub fn member_token_evidence( &self, recipient: &Route, ) -> Option<MemberTokenEvidence>

Borrow one current member’s complete stable-token evidence. Removal retires the old evidence; later addition starts Unknown.

impl<A, Route, K> Router<A, Route, RendezvousHash<K>>

where A: Address, Route: DeliveryRoute<Protocol: Protocol<Addr = A>> + Clone + PartialEq, <Route::Protocol as Protocol>::Msg: RouteKey<K>,

pub fn member_token_evidence( &self, recipient: &Route, ) -> Option<MemberTokenEvidence>

Borrow one current member’s complete stable-token evidence. Removal retires the old evidence; later addition starts Unknown.

Trait Implementations

impl<A, Route, R> Behavior for Router<A, Route, R>

where A: Address, Route: DeliveryRoute<Protocol: Protocol<Addr = A>> + Clone + PartialEq, R: RoutingStrategy<Route>, Route::Sends: SendsFor<User<A, RouterMessage<Route, R>>>,

type Protocol = Router<A, Route, R>

Stable public communication identity owned by this actor template.

type Event = User<A, RouterMessage<Route, R>>

type Sends = <Route as DeliveryRoute>::Sends

type Ph = Never

type Error = RouterError<<<Route as DeliveryRoute>::Protocol as Protocol>::Msg, <R as RoutingStrategy<Route>>::Observation, <R as RoutingStrategy<Route>>::Error>

type Birth = NoBirths

fn transition( &mut self, _: ActiveTurn, event: Self::Event, ) -> BehaviorActed<Self>

Fold exactly one event into explicit actions and the next behavior.

fn init( &mut self, _turn: InitializationTurn, ) -> Result<Actions<<Self::Protocol as Protocol>::Addr, Self::Ph, Self::Sends, Self::Birth>, Self::Error>

where Self: Sized,

Produce initialization actions before the first event is accepted.

fn layer<L>(self, layer: L) -> <L as BehaviorLayer<Self>>::Output

where Self: Sized, L: BehaviorLayer<Self>,

Apply one statically dispatched construction layer.

impl<A, Route, R> BehaviorBase for Router<A, Route, R>

where A: Address, Route: DeliveryRoute<Protocol: Protocol<Addr = A>> + Clone + PartialEq, R: RoutingStrategy<Route>,

type Base = Router<A, Route, R>

fn base(&self) -> &Self::Base

impl<A, Route, R> Protocol for Router<A, Route, R>

where A: Address, Route: DeliveryRoute<Protocol: Protocol<Addr = A>> + Clone + PartialEq, R: RoutingStrategy<Route>,

type Addr = A

type Msg = RouterMessage<Route, R>