code: protected void emitWithNoKeyIdAndGrouping(StreamMessage message, String groupingKey)
      {
          this.getCollector().emit(new Values(groupingKey, message));
      }
docs: Not use this class's key history function, and not use MessageId(Id identify by storm).<br>
  Send message to downstream component with grouping key.<br>
  Use following situation.
  <ol>
  <li>Not use this class's key history function.</li>
  <li>Not use storm's fault detect function.</li>
  </ol>
  
  @param message sending message
  @param groupingKey grouping key