public void flush() { changes.flush(); }
public void stop(Key k, long expiration) { changes.stop(k, expiration); }
public void monitor(Key k, long expiration) { changes.monitor(k, expiration); }
public void replace(Key k, long oldExpiration, long expiration) { changes.replace(k, expiration, oldExpiration); }
private void updateTimeMapWithIncomingChanges() { changes.visitIncoming(treemap); }