public function setQuery($collectionName, $metaInfoQuery = null)
 {
     $argv = func_get_args();
     if (count($argv) == 2) {
         $this->dbName = App42API::getDbName();
         $this->collectionName = $collectionName;
         if ($metaInfoQuery instanceof JSONObject) {
             $queryObject = array();
             array_push($queryObject, $metaInfoQuery);
             $this->query = json_encode($queryObject);
         } else {
             $this->query = json_encode($metaInfoQuery);
         }
     } else {
         $this->dbName = App42API::getDbName();
         $this->collectionName = collectionName;
     }
 }
 public function addJSONObject($collectionName, $obj)
 {
     $this->dbName = App42API::getDbName();
     $this->collectionName = $collectionName;
     $this->jsonObject = json_encode($obj);
 }