WebFlow Events (3): How do they work?

public class client

extends Applet {

…

org.omg.CORBA.Object o =orb.string_to_object(IOR);

WebFlowContext wfc1 = WebFlowContextHelper.narrow(o);

moduleA moduleARef = moduleAHelper.narrow(wfc.addNewModule(“moduleA”));

...

wfc1.attachPushEvent(moduleARef, “eventName”, moduleBRef, “aMethod”);