public function clause($name)
    {
        if (isset($this->_parts[$name])) {
            return $this->_parts[$name];
        }

        return null;
    }
public function clause($name)
    {
        if (isset($this->_parts[$name])) {
            return $this->_parts[$name];
        }

        return null;
    }
public function clause ( $ name ) { if ( isset ( $ this -> _parts [ $ name ] ) ) { return $ this -> _parts [ $ name ] ; } return null ; }
Returns any data that was stored in the specified clause.

- where: QueryExpression, returns null when not set
- order: OrderByExpression, returns null when not set
- limit: integer or QueryExpression, null when not set
- offset: integer or QueryExpression, null when not set

@param string $name name of the clause to be returned
@return mixed
Returns any data that was stored in the specified clause .