Examples of com.sun.midp.util.SerialCallback

com.sun.midp.util.SerialCallback
An adaptor class that lets a caller synchronize with the event thread. The invokeAndWait() method enqueues an event using Display.callSerially() and blocks the caller. When the event reaches the front of the queue, it calls this object's run() method on the event thread, and unblocks the caller. Clients may override the run() method if they wish to provide specialized behavior that must be run on the event thread. If run() is not overridden, invokeAndWait() simply blocks until the event thread has processed the event. This is useful for callers that need to wait until after an event has been processed. The invokeAndWait() method must not be called on the event thread, otherwise the system will deadlock.


        // Dismiss alert1. Nothing should happen, since it has
        // been superseded by alert2.


        dismiss(alert1);
        new SerialCallback(dpy).invokeAndWait();
        checkCurrent("alert1", alert1, false);
        checkCurrent("alert2", alert2, true);
        checkCurrent("cv0", cv0, false);
        checkCurrent("cv1", cv1, false);

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        checkCurrent("cv0", cv0, false);


        // The two-arg call should update the next displayable
        // but should otherwise do nothing.
        dpy.setCurrent(alert1, cv1);
        new SerialCallback(dpy).invokeAndWait();
        checkCurrent("alert1", alert1, true);
        checkCurrent("cv0", cv0, false);
        checkCurrent("cv1", cv1, false);


        dismissWait(alert1);

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        // Dismiss alert. Nothing should happen, since it has
        // been superseded by cv2.


        dismiss(alert);
        new SerialCallback(dpy).invokeAndWait();
        checkCurrent("alert", alert, false);
        checkCurrent("cv1", cv1, false);
        checkCurrent("cv2", cv2, true);
        assertFalse("cv1 should not have been shown", cv1.wasShown());
    }

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        checkCurrent("cv2", cv2, true);


        // Dismiss alert. Nothing should happen, since it has
        // been superseded by cv2.
        dismiss(alert);
        new SerialCallback(dpy).invokeAndWait();
        checkCurrent("alert", alert, false);
        checkCurrent("cv1", cv1, false);
        checkCurrent("cv2", cv2, true);
        assertFalse("cv1 should not have been shown", cv1.wasShown());
    }

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            });


        // Dismiss alert1. Nothing should happen, since it has
        // been superseded by cv2.
        dismiss(alert1);
        new SerialCallback(dpy).invokeAndWait();
        checkCurrent("alert1", alert1, false);
        checkCurrent("alert2", alert2, true);
        checkCurrent("cv1", cv1, false);
        checkCurrent("cv2", cv2, false);

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        // Dismiss alert1. Nothing should happen, since it has
        // been superseded by cv2.


        dismiss(alert1);
        new SerialCallback(dpy).invokeAndWait();
        checkCurrent("alert1", alert1, false);
        checkCurrent("alert2", alert2, true);
        checkCurrent("cv1", cv1, false);
        checkCurrent("cv2", cv2, false);

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