public function hasFilter($columnId)
    {
        if ($this->hash === null) {
            throw new \Exception(self::HAS_FILTER_NO_REQUEST_HANDLED_EX_MSG);
        }

        return $this->getFilter($columnId) !== null;
    }
public function hasFilter($columnId)
    {
        if ($this->hash === null) {
            throw new \Exception(self::HAS_FILTER_NO_REQUEST_HANDLED_EX_MSG);
        }

        return $this->getFilter($columnId) !== null;
    }
public function hasFilter ( $ columnId ) { if ( $ this -> hash === null ) { throw new \ Exception ( self :: HAS_FILTER_NO_REQUEST_HANDLED_EX_MSG ) ; } return $ this -> getFilter ( $ columnId ) !== null ; }
A filter of the column is stored in session ?

@param string $columnId
Id of the column

@throws \Exception

@return bool
A filter of the column is stored in session ?