code: public long count(BoundingBox boundingBox) {
  		long count = 0;
  		switch (getIndexedType()) {
  		case GEOPACKAGE:
  			count = featureTableIndex.count(boundingBox);
  			break;
  		case RTREE:
  			count = rTreeIndexTableDao.count(boundingBox);
  			break;
  		default:
  			count = manualFeatureQuery.count(boundingBox);
  		}
  		return count;
  	}
docs: Query for feature index count within the bounding box, projected
  correctly
  
  @param boundingBox
  bounding box
  @return count