code: public void pauseTriggers (final GroupMatcher <TriggerKey> matcher) throws SchedulerException
    {
      validateState ();
  
      final ICommonsCollection <String> pausedGroups = m_aResources.getJobStore ()
                                                                   .pauseTriggers (_getOrDefault (matcher));
      notifySchedulerThread (0L);
      for (final String pausedGroup : pausedGroups)
      {
        notifySchedulerListenersPausedTriggers (pausedGroup);
      }
    }
docs: <p>
  Pause all of the <code>{@link ITrigger}s</code> in the matching groups.
  </p>