Custom Event

Question

I need to communicate between two different controllers associate with different sections of FXML.
I create a custom even and implemented an event handler in one of my controllers.
I can not seem to figure out how to fire the custom event from my other controller. So far the documentation I have found doesn't fill in the blank about firing an event from a controller or even any other class than one that already has .fireEvent as a member.
Am I using the wrong design pattern here or is there an easy solution to fire an event?
pseudo
public class myEvent extends Event {
     private static final long serialVersionUID = 1261846397820142663L;
     public static final EventType<myEvent >MY_EVENT = new EventType<myEvent >(ANY, "MY_EVENT");
     public myEvent (EventType<? extends Event> arg0) {
          super(arg0);
          // TODO Auto-generated constructor stub
     public myEvent () {
          this(MY_EVENT);
public class myClass implements EventHandler<myEvent> {
     @Override
     public void handle(TimelineDropEvent arg0) {
          // TODO Auto-generated method stub
          System.out.println("MyEvent");
public class myOtherClass {
//TODO what do I do here to fire an event
}Obviously both of my sample classes also implement Initializable since they are controllers.
In my event do I absolutely need serialVersionUID or is there another way to avoid the warning associated with removing it?

Answer 1

Sorry for the delay. I had to create a Google Code project to host the example:
http://code.google.com/p/sjmb/
The source code for the message bus API is here:
http://code.google.com/p/sjmb/source/browse/#svn%2Ftrunk%2Fsjmb%2Fsrc%2Fcom%2Foracle%2Fsjmb
It essentially allows callers to subscribe to "message topics", which are simply Java types. Any time an instance of a given type is sent, subscribed listeners are notified. Any Java type can be used including enums, which provide a nice, type-safe way to define messages.
An example demonstrating how to use the API is here:
http://code.google.com/p/sjmb/source/browse/#svn%2Ftrunk%2Fsjmb%2Ftest%2Fcom%2Foracle%2Fsjmb%2Ftest
The main application window presents a tab pane containing 3 identical tabs. Each tab's controller subscribes to a message of type com.oracle.sjmb.test.Message. Entering text in the text field and pressing the "Send Message" button sends a new message, causing the other two tabs to update the contents of their own text fields to match.
The example application consists of the following files:
Message.java - the message class
MessageBusTest.java - the main JavaFX application class
message_bus_test.fxml - FXML document containing the main scene
tab.fxml - FXML document containing tab pane content
TabController.java - tab content controller
Javadoc and binaries are available here:
http://code.google.com/p/sjmb/downloads/list
Please note that this is an example only and is not an official part of any Oracle product. Let me know if you have any questions.
Greg