--- /dev/null
+<?php
+
+/*
+ * This file is part of the Behat Gherkin.
+ * (c) Konstantin Kudryashov <ever.zet@gmail.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Behat\Gherkin\Cache;
+
+use Behat\Gherkin\Node\FeatureNode;
+
+/**
+ * Parser cache interface.
+ *
+ * @author Konstantin Kudryashov <ever.zet@gmail.com>
+ */
+interface CacheInterface
+{
+ /**
+ * Checks that cache for feature exists and is fresh.
+ *
+ * @param string $path Feature path
+ * @param integer $timestamp The last time feature was updated
+ *
+ * @return Boolean
+ */
+ public function isFresh($path, $timestamp);
+
+ /**
+ * Reads feature cache from path.
+ *
+ * @param string $path Feature path
+ *
+ * @return FeatureNode
+ */
+ public function read($path);
+
+ /**
+ * Caches feature node.
+ *
+ * @param string $path Feature path
+ * @param FeatureNode $feature Feature instance
+ */
+ public function write($path, FeatureNode $feature);
+}