code: private void sendSearchSignal(String queryId) {
  		log(TAG, "handler is asking for a search signal");
  		QueryInfo qd = queries.get(queryId);
  		if (qd != null) {
  			performer.sendSearchSignal(qd);
  		}
  	}
docs: Emits the search signal through the {@link SearchPerformer} object.
  
  @param queryId
  the query for which the search signal has to be emitted.