Emitting custom events

You may also emit events from your rule actions using the sessions emit function.

then {

modify(f3, function(){

this.value = f1.value + f2.value;

});

retract(f1);

emit("my custom event");

}

To listen to the event just use the on method of the session.

var session = flow.getSession();

session.on("my custom event", function(){

//custom event called.

});