Events
Every fundamental ActiveJS construct has a number of built-in Observable events. You can listen to these events by subscribing to the events$
Observable, a property of every fundamental construct.
Units, Systems, Action, and Cluster have a common EventReplay
event, it is triggered on a successful manual replay when you call the replay()
method.
Units have many Units specific events that let you tap into all the action that's happening on a Unit.
Every Unit has some common events like EventUnitDispatch
, EventUnitDispatchFail
andEventUnitFreeze
etc.
ListUnit and DictUnit have even more events specific to them, like EventDictUnitSet
, EventListUnitPush
or EventListUnitPop
etc.
See API reference for more details.
Listening to events
const theAction = new Action(); // can also be a Unit, System or Cluster
theAction.events$.subscribe(event => {
// Action, AsyncSystem and Cluster only have one event
// so filtering is optional
if(event instanceof EventReplay) {
console.log('hey, you got replayed');
}
});
// dispatch a value
theAction.dispatch('order order');
// this won't trigger any event, only Units emit an event on dispatch
// replay the value
theAction.replay(); // it'll trigger the EventReplay event
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