Examples of Baton

     * race condition between modifying a Form's contents (for example, with
     * append) while the Form is in the process of becoming current.
     */
    void testScreenChangeAppend() {
        StringItem items[] = new StringItem[10];
        final Baton baton = new Baton();


        for (int ii = 0; ii < items.length; ii++) {
            items[ii] = new StringItem(null, Integer.toString(ii % 10));
        }


        Form form = new Form("Test Form");


        // gets called from dpy.callScreenChange() after uCallShow()
        dpy.liveTracer.add(
            Display.LTR_SCREENCHANGE_AFTERSHOW,
            new LiveTraceListener() {
                public void call(String tag) {
                    baton.pass();
                }
            });


        dpy.setCurrent(form);


        for (int ii = 0; ii < items.length; ii++) {
            form.append(items[ii]);
            if (ii == 3) {
                baton.start();
            }
        }
        baton.finish();


        // wait for queued events to be processed
        new SerialCallback(dpy).invokeAndWait();


        assertTrue("layout must be valid", checkValidLayout(form));

     * This test simulates that case.
     */
    void testTraversalInconsistency() {
        Form form = new Form("Test Form 2");
        FormLFImpl formLF = (FormLFImpl)form.formLF;
        final Baton baton = new Baton();
        SerialCallback scb = new SerialCallback(dpy);


        // can be any interactive item
        Item item = new Gauge(null, true, 1, 0);


        // Set up a form with no focusable item.


        form.append("String 1");
        dpy.setCurrent(form);
        scb.invokeAndWait();


        // Block the event queue to prevent the invalidate from
        // being processed.


        dpy.callSerially(
            new Runnable() {
                public void run() {
                    baton.pass();
                }
            });
        baton.start();


        // Append a focusable item to the form, and then call
        // uTraverse() directly, as if a key had been pressed at
        // exactly the right moment.


        form.insert(0, item);
        formLF.uTraverse(Canvas.DOWN);
        baton.finish();


        // Wait for the invalidate to finish processing, then
        // check assertions.


        scb.invokeAndWait();

Examples of com.sun.midp.util.Baton

Examples of com.sun.midp.util.Baton