An interface for listener objects that receive notifications on fired events.
Description
The IEventListener interface allows you to define actions to be taken by listener objects after receiving a notification on a fired event.
Instance methods
OnEvent
A method called when events this listener is subscribed to are fired.
void OnEvent(IContext context, IEvent event, Parameters args)
- context: IContext - (optional) a context to trace execution through a call chain
- event: IEvent - (optional) transaction id used to trace execution through the call chain.
- args: Parameters - event arguments.
Examples
public class MyListener: IEventListener {
private Task onEvent(IContext context, IEvent event, Parameters args) {
Console.WriteLine("Fired event " + event.getName());
}}
Event event = new Event("myevent");
event.addListener(new MyListener());
event.notify("123", Parameters.fromTuples("param1", "ABC"));
// Console output: Fired event myevent