protected function _store($uploadType, $name, $bytes, $overwrite = false) {
        if (!array_key_exists($uploadType, $this->_fileHandlers)) {
            $this->_fileHandlers[$uploadType] = $uploadType === Garp_File::TYPE_IMAGES ?
                new Garp_Image_File() :
                new Garp_File($uploadType);
        }
        return $this->_fileHandlers[$uploadType]->store($name, $bytes, $overwrite);
    }