Extbase-Model FileReference

<?php
namespace In2code\In2msiproducts\Domain\Model;

    /***************************************************************
     *  Copyright notice
     *
     *  (c) 2013 Tina Gasteiger <tina.gasteiger@in2code.de>, in2code
     *
     *  All rights reserved
     *
     *  This script is part of the TYPO3 project. The TYPO3 project is
     *  free software; you can redistribute it and/or modify
     *  it under the terms of the GNU General Public License as published by
     *  the Free Software Foundation; either version 3 of the License, or
     *  (at your option) any later version.
     *
     *  The GNU General Public License can be found at
     *  http://www.gnu.org/copyleft/gpl.html.
     *
     *  This script is distributed in the hope that it will be useful,
     *  but WITHOUT ANY WARRANTY; without even the implied warranty of
     *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     *  GNU General Public License for more details.
     *
     *  This copyright notice MUST APPEAR in all copies of the script!
     ***************************************************************/

/**
 *
 *
 * @package in2msiproducts
 * @license http://www.gnu.org/licenses/gpl.html GNU General Public License, version 3 or later
 *
 */
class FileReference extends \TYPO3\CMS\Extbase\Domain\Model\File {

    /**
     * @var \In2code\In2msiproducts\Domain\Model\File
     */
    protected $file;

    /**
     * @var \string
     */
    protected $title;

    /**
     * @var \string
     */
    protected $description;

    /**
     * @var \string
     */
    protected $alternative;

    /**
     * @var \string
     */
    protected $link;

    /**
     * @var \string
     */
    protected $downloadname;

    /**
     * @param string $alternative
     */
    public function setAlternative($alternative) {
        $this->alternative = $alternative;
    }

    /**
     * @return string
     */
    public function getAlternative() {
        return $this->alternative;
    }

    /**
     * @param string $description
     */
    public function setDescription($description) {
        $this->description = $description;
    }

    /**
     * @return string
     */
    public function getDescription() {
        return $this->description;
    }

    /**
     * @param string $downloadname
     */
    public function setDownloadname($downloadname) {
        $this->downloadname = $downloadname;
    }

    /**
     * @return string
     */
    public function getDownloadname() {
        return $this->downloadname;
    }

    /**
     * @param string $link
     */
    public function setLink($link) {
        $this->link = $link;
    }

    /**
     * @return string
     */
    public function getLink() {
        return $this->link;
    }

    /**
     * @param string $title
     */
    public function setTitle($title) {
        $this->title = $title;
    }

    /**
     * @return string
     */
    public function getTitle() {
        return $this->title;
    }

    /**
     * @param \In2code\In2msiproducts\Domain\Model\File $file
     */
    public function setFile($file) {
        $this->file = $file;
    }

    /**
     * @return \In2code\In2msiproducts\Domain\Model\File
     */
    public function getFile() {
        return $this->file;
    }
}

?>