Refactored\moved Attribut folder

application/symfony/src/Attribut/VersionAttributInterface.php

@@ -0,0 +1,28 @@
+<?php
+
+namespace App\Attribut;
+
+/**
+ * Entities which implement this interface can lock stuff on an optimistic base.
+ *
+ * @see https://www.doctrine-project.org/projects/doctrine-orm/en/2.6/reference/transactions-and-concurrency.html
+ * @see https://en.wikipedia.org/wiki/Optimistic_concurrency_control
+ *
+ * @author kevinfrantz
+ */
+interface VersionAttributInterface
+{
+    /**
+     * Returns the revision version of the entity.
+     *
+     * @return int
+     */
+    public function getVersion(): int;
+
+    /**
+     * Sets the revision version of the entity.
+     *
+     * @param int $version
+     */
+    public function setVersion(int $version): void;
+}