public SchedulableRunnable() 
{
   // Static --------------------------------------------------------
   // Constructors --------------------------------------------------
}

Constructs a new schedulable runnable.

 abstract public  void doRun()
Do the work, the scheduled runnable should do its work here

 public long getNextRun() 
{
      return nextRun.get();
}

Gets the next run timestamp

 public final  void run() 
{
      startRun();
      try
      {
         doRun();
      }
      finally
      {
         endRun();
      }
}

Runs doRun()

If setNextRun() is not invoked during the doRun(), the link to the scheduler is removed

 public synchronized  void setNextRun(long nextRun) 
{
      // Remove from scheduler
      if (timeout != null)
         timeout.cancel();
      // Set the new run time
      this.nextRun.set(nextRun);
      // If we are not running, add it to the scheduler otherwise
      // remember we want adding back
      if (running == false && scheduler != null)
      {
         //log.debug("add to scheduler: " + this);
         timeout = scheduler.add(this);
      }
      else
      {
         //log.debug("reschedule: " + this);
         reschedule = true;
      }
}

Sets the next run date

If it is linked to a scheduler, it is temporarily removed while the date is modified.

 public synchronized RunnableScheduler setScheduler(RunnableScheduler scheduler) 
{
      // Null operation
      if (this.scheduler == scheduler)
         return this.scheduler;
      // Remember the result
      RunnableScheduler result = this.scheduler;
      // Remove from previous scheduler
      if (this.timeout != null)
         timeout.cancel();
      // Set the new state
      this.scheduler = scheduler;
      // This is a remove operation
      if (scheduler == null)
         reschedule = false;
      // If we are not running, add it to the scheduler otherwise
      // remember we want adding
      else if (running == false)
         timeout = scheduler.add(this);
      else
         reschedule = true;
      // We are done
      return result;
}

Set the scheduler for this runnable