Here is the answer:

The execute() method of Scheduler.RepeatingCommand returns a boolean.
If true, then the command will be invoked again. If false, it will be
cancelled.

  public interface RepeatingCommand {
    /**
     * Returns true if the RepeatingCommand should be invoked again.
     */
    boolean execute();
  }






On Jul 21, 2:13 pm, Jens <jens.nehlme...@gmail.com> wrote:
> Hm I don't think so. But you can use GWT's Timer class instead. It has a
> cancel() method as well as a scheduleRepeating(int delayInMillis) method.
>
> -- J.

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