JSR-296 SwingApp Framework Question

Question

I learned how to program in Java way back in the 90's by looking at the Java Source Code and seeing how the pro's did it. So, when wanting to learn a little about concurrent programming I looked up the code in the new SwingApp Framework (which at present is open source) and JSR-296.
I have a question about some of the "propertyChange" firing code in the AbstractBean class.
The code is basically a wrapper around the java.beans.PropertyChangeSupport class. They create their own private static subclass called EDTPropertyChangeSupport, instantiate it and create delegates around the PropertyChangeSupport methods.
However, in the EDTPropertyChangeSupport they override the PropertyChangeSupport method "firePropertyChange" in the following way:
    private static class EDTPropertyChangeSupport extends PropertyChangeSupport {
        EDTPropertyChangeSupport(Object source) {
            super(source);
        public void firePropertyChange(final PropertyChangeEvent e) {
            if (SwingUtilities.isEventDispatchThread()) {
                super.firePropertyChange(e);
            } else {
                Runnable doFirePropertyChange = new Runnable() {
                    public void run() {
                        firePropertyChange(e);
                SwingUtilities.invokeLater(doFirePropertyChange);
    }My question is this: I understand checking to see if the event was fired from the "Event Dispatch Thread" but if it isn't, a new runnable is created and the "firePropertyChange(e)" method is executed. Is this "firePropertyChange(e)" method the method from the "PropertyChangeSupport" class OR is it the method from the "EDTPropertyChangeSupport" class. If it is the former, then things are OK, but if it is the latter case, then it will create a recursive infinite (until you run out of stack space) decent condition.
Maybe it's a lack of understanding on my part, but I think it's the latter.
Stephen McConnell

Answer 1

I tried logging in under the old account and it seems to have forgotten me.
I have read those Tutorials. I understand them for the limited uses they
describe. I just wish there was something more expanded and with
more examples on Java Concurrency.
I am reading the tutorials again and some more articles I found on the web:
[Java 5.0 Concurrency API's|http://java.sun.com/j2se/1.5.0/docs/guide/concurrency/overview.html]
And will be ordering a couple of books out there on the subject.
Thanks. For the answer. How does one mark a question answered?
Stephen McConnell
|http://java.sun.com/j2se/1.5.0/docs/guide/concurrency/overview.html]