upgrade

vendor/sonata-project/admin-bundle/Model/LockInterface.php

@@ -0,0 +1,35 @@
+<?php
+
+/*
+ * This file is part of the Sonata Project package.
+ *
+ * (c) Thomas Rabaix <thomas.rabaix@sonata-project.org>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Sonata\AdminBundle\Model;
+
+use Sonata\AdminBundle\Exception\LockException;
+
+/**
+ * @author Emmanuel Vella <vella.emmanuel@gmail.com>
+ */
+interface LockInterface
+{
+    /**
+     * @param object $object
+     *
+     * @return mixed|null
+     */
+    public function getLockVersion($object);
+
+    /**
+     * @param object $object
+     * @param mixed  $expectedVersion
+     *
+     * @throws LockException
+     */
+    public function lock($object, $expectedVersion);
+}