+ /**
+ * (@inheritdoc)
+ */
+ public function getAllKeys($prefix = null)
+ {
+ if (empty($prefix)) {
+ $search = '*';
+ } else {
+ $search = $prefix . '*';
+ }
+
+ $list = $this->redis->keys($this->getCacheKey($search));
+
+ return $this->getOriginalKeys($list);
+ }
+
+ /**
+ * (@inheritdoc)
+ */