Examples of java.util.Timer$TimerImpl$TimerNode

java.util.Timer
Timers are used to schedule jobs for execution in a background process. A single thread is used for the scheduling and this thread has the option of being a daemon thread. By calling cancel you can terminate a timer and it's associated thread. All tasks which are scheduled to run after this point are cancelled. Tasks are executed sequentially but are subject to the delays from other tasks run methods. If a specific task takes an excessive amount of time to run it may impact the time at which subsequent tasks may run.
The Timer task does not offer any guarantees about the real-time nature of scheduling tasks as it's underlying implementation relies on the Object.wait(long) method.
Multiple threads can share a single Timer without the need for their own synchronization. @see TimerTask @see java.lang.Object#wait(long)

    } catch (JMuleManagerException e) {
      e.printStackTrace();
      return;
    }
    _network_manager = (InternalNetworkManager) NetworkManagerSingleton.getInstance();
    need_more_peers_timer = new Timer( "Need more peers timer", true );
    need_more_peers_timer.scheduleAtFixedRate( new TimerTask() {
      @Override
      public void run() {
        Set<FileHash> file_hashes = session_list.keySet();
        List<FileHash> file_hashes_needed_help = new ArrayList<FileHash>();

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        }
        synchronized (this) {
            _accumulator += zoomIncrement;
            if (_zoomAccumulator != null)
                return;
            _zoomAccumulator = new Timer();
            _zoomAccumulator.schedule(new TimerTask() {
                public void run() {
                    int accuCopy;
                    synchronized (ViewTransform.this) {
                        accuCopy = _accumulator;

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      super.start();
    } catch (JMuleManagerException e) {
      e.printStackTrace();
      return ;
    }
    remove_temp_banned_peers_timer = new Timer( "Remove temp banned peers timer", true );
    remove_temp_banned_peers_timer.scheduleAtFixedRate(new TimerTask() {
      @Override
      public void run() {
        for(TemporaryBannedIP banned_ip : temporary_banned_peers) 
          if( ( System.currentTimeMillis() - banned_ip.getWhenBanned() ) >= banned_ip.getHowLong() )
            temporary_banned_peers.remove( banned_ip );
      }
    }, (long)1, REMOVE_TEMP_BANNED_PEERS_INTERVAL);
    
    remove_temp_banned_servers_timer = new Timer( "Remove temp banned servers timer", true);
    remove_temp_banned_servers_timer.scheduleAtFixedRate(new TimerTask() {
      @Override
      public void run() {
        for(TemporaryBannedIP banned_ip : temporary_banned_servers) 
          if( ( System.currentTimeMillis() - banned_ip.getWhenBanned() ) >= banned_ip.getHowLong() )

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            TimerTask task = new TimerTask() {
                public void run() {
                    getResendInitiator().run();
                }
            };
            timer = new Timer();
            timer.schedule(task, getBaseRetransmissionInterval(), getBaseRetransmissionInterval());  
        }
    }

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            destination = new RMDestination(this);
            destination.restore();
        }
        
        if (null == timer) {
            timer = new Timer();
        }
        
        if (!busLifeCycleListenerRegistered) {
            getBinding().getBus().getLifeCycleManager()
                .registerLifeCycleListener(new RMBusLifeCycleListener(getSource()));

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         // if there is a timer and no change about the refreshperiod, let it do its job
        if (_refreshPeriodChanged || _timer == null){
            _refreshPeriodChanged = false;
            if (_timer!=null) 
                _timer.cancel();
            _timer = new Timer(true); // do not block the application on exit
            _timer.schedule(new SceneTimerTask(),0,_refreshPeriod);
        }
    }

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      public void run() {
        interrupt();
      }
    };


    timer = new Timer("TimeLimitCursor", true);
    timer.schedule(tt, timeLimit);
  }

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    else if (syncDelay > 0L) {
      synchronized (syncTimerSemaphore) {
        // Sync in syncDelay milliseconds
        if (syncTimer == null) {
          // Create the syncTimer on a deamon thread
          syncTimer = new Timer("MemoryStore synchronization", true);
        }


        if (syncTimerTask != null) {
          logger.error("syncTimerTask is not null");
        }

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    }


  static public void main(String[] args) {
    Calendar c = Calendar.getInstance(); // contains current startup time
    //c.add(Calendar.SECOND, 30); // starting in 30 seconds
    Timer timer = new Timer();
    timer.schedule(new TestMetarEncoding(), c.getTime(), (long) 1000 * 120); // delay 2 min between runs
  }

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    }
  }


  // ÿ�����ϰ�ҹʱ���Զ�����
  private void manager() {
    Timer timer = new Timer();
    TimerTask tt2 = new TimerTask() {
      public void run() {
        loadNewWords();
      }
    };


    Date date = Config.update_keys_time();
    timer.schedule(tt2, date, Config.update_keys_interval() * 60000);


  }

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