/**
  * Conecta no banco
  */
 protected function connect()
 {
     try {
         $this->con = PDOSingletonSISTESTE::getInstance($this->dbType . ":host=" . $this->host . ";dbname=" . $this->db, $this->user, $this->password);
     } catch (Exception $e) {
         echo "ERRO ..." . $e->getMessage() . " ";
         die;
     }
 }
 public function getInstance($urlCon = null, $user = null, $pass = null)
 {
     if (FALSE == self::$carregadaSISTESTE) {
         if (NULL == self::$conSISTESTE) {
             self::$conSISTESTE = new PDO($urlCon, $user, $pass);
         }
         self::$carregadaSISTESTE = TRUE;
         return self::$conSISTESTE;
     }
     return self::$conSISTESTE;
 }