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Current File : /var/www/surf/TYPO3/vendor/typo3/cms-install/Classes/Updates/PrerequisiteInterface.php

<?php

declare(strict_types=1);

/*
 * This file is part of the TYPO3 CMS project.
 *
 * It is free software; you can redistribute it and/or modify it under
 * the terms of the GNU General Public License, either version 2
 * of the License, or any later version.
 *
 * For the full copyright and license information, please read the
 * LICENSE.txt file that was distributed with this source code.
 *
 * The TYPO3 project - inspiring people to share!
 */

namespace TYPO3\CMS\Install\Updates;

/**
 * UpgradeWizard Prerequisites
 */
interface PrerequisiteInterface
{
    /**
     * Get speaking name of this prerequisite
     */
    public function getTitle(): string;

    /**
     * Ensure this prerequisite is fulfilled
     *
     * Gets called if "isFulfilled" returns false
     * and should ensure the prerequisite
     *
     * Returns true on success, false on error
     *
     * @see isFulfilled
     */
    public function ensure(): bool;

    /**
     * Is this prerequisite met?
     *
     * Checks whether this prerequisite is fulfilled. If it is not,
     * ensure should be called to fulfill it.
     *
     * @see ensure
     */
    public function isFulfilled(): bool;
}