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vendor/symfony/security-acl/Model/DomainObjectInterface.php

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+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Security\Acl\Model;
+
+/**
+ * This method can be implemented by domain objects which you want to store
+ * ACLs for if they do not have a getId() method, or getId() does not return
+ * a unique identifier.
+ *
+ * @author Johannes M. Schmitt <schmittjoh@gmail.com>
+ */
+interface DomainObjectInterface
+{
+    /**
+     * Returns a unique identifier for this domain object.
+     *
+     * @return string
+     */
+    public function getObjectIdentifier();
+}