Re: Serialization on JFra

hello all,

i try to save my whole application, by performing serialization on my
JFrame, hoping the the GUI display, internal data can be restore back
to previous user setting.

however, i found that, after restoring, the main frame still can be
seen. however, all the action listener not longer work (i.e., i key in
a value in a text field and press enter, nothing happen).

my action listner is installed in the JMainFrame constructor.

i was wondering is it because during serialization loading, the
JMainFrame constructor is not being called? isn't the actione listener
itself should also being serialization loaded?

here is the snippet of my code. my serialization saving is done during
window closing, the my serialization loading (restoring) is done at
the start of the main function.

thanks

    private void formWindowClosing(java.awt.event.WindowEvent evt)
{
// TODO add your handling code here:
        saveApplication();
.......

    private boolean saveApplication() {
        try {
            FileOutputStream fos = new
FileOutputStream("application.ser");
            ObjectOutputStream out = new ObjectOutputStream(fos);
            out.writeObject(this.mainFrame);
            out.close();
        }
        catch(IOException exp) {
            exp.printStackTrace();
            return false;
        }

        return true;
    }

    private boolean saveApplication() {
        try {
            FileOutputStream fos = new
FileOutputStream("application.ser");
            ObjectOutputStream out = new ObjectOutputStream(fos);
            out.writeObject(this.mainFrame);
            out.close();
        }
        catch(IOException exp) {
            exp.printStackTrace();
            return false;
        }

        return true;
    }

    public static void main(String args[]) {
        java.awt.EventQueue.invokeLater(new Runnable() {
            public void run() {
                if((mainFrame = MainFrame.loadApplication()) != null)
{
                    mainFrame.setVisible(true);
                    System.out.println("success serialization
loading");
                }
                else {
                    mainFrame = new MainFrame();
                    mainFrame.setExtendedState(Frame.MAXIMIZED_BOTH);

mainFrame.setVisible(true);
                }
            }
        });
    }