bpm-runtime
Scheduler and token execution: handlers, pump, gateway evaluation, transition.
Role
- BpmEngine — runs the event loop: consume events, dispatch to handlers, emit new events.
- EngineContext — holds store references (ProcessInstanceStore, TokenStore, TimerStore, ExternalTaskStore, etc.).
- EventHandlers — ProcessStartHandler, TokenArrivedHandler, UserTaskCompletedHandler, ProcessCompletedHandler, etc.
- Scheduler, pump, transition helpers, gateway (EL) evaluation.
Depends on bpm-storage traits; no concrete storage implementation.
Usage
Wire an EngineContext with store implementations (e.g. from bpm-adapter-memory), then run BpmEngine::run_async(initial_event, &mut ctx). See crates/server/rest for wiring.