--- /dev/null
+<?php
+namespace Consolidation\AnnotatedCommand\Cache;
+
+/**
+ * Documentation interface.
+ *
+ * Clients that use AnnotatedCommandFactory::setDataStore()
+ * are encouraged to provide a data store that implements
+ * this interface.
+ *
+ * This is not currently required to allow clients to use a generic cache
+ * store that does not itself depend on the annotated-command library.
+ * This might be required in a future version.
+ */
+interface SimpleCacheInterface
+{
+ /**
+ * Test for an entry from the cache
+ * @param string $key
+ * @return boolean
+ */
+ public function has($key);
+ /**
+ * Get an entry from the cache
+ * @param string $key
+ * @return array
+ */
+ public function get($key);
+ /**
+ * Store an entry in the cache
+ * @param string $key
+ * @param array $data
+ */
+ public function set($key, $data);
+}