'Lookup the pending HostQueueEntries and call our HostScheduler
refresh() method given that list.  Return the list.
:return: A list of pending HostQueueEntries sorted in priority order.'

def _refresh_pending_queue_entries(self):

    queue_entries = self._get_pending_queue_entries()
    if (not queue_entries):
        return []
    self._host_scheduler.refresh(queue_entries)
    return queue_entries
