Add support for using aliases to allow hot swapping of indexes when populating

DynamicIndex.php

@@ -0,0 +1,28 @@
+<?php
+
+namespace FOS\ElasticaBundle;
+
+use Elastica\Index;
+
+/**
+ * Elastica index capable of reassigning name dynamically
+ *
+ * @author Konstantin Tjuterev <kostik.lv@gmail.com>
+ */
+class DynamicIndex extends Index
+{
+    /**
+     * Reassign index name
+     *
+     * While it's technically a regular setter for name property, it's specifically named overrideName, but not setName
+     * since it's used for a very specific case and normally should not be used
+     *
+     * @param string $name Index name
+     *
+     * @return void
+     */
+    public function overrideName($name)
+    {
+        $this->_name = $name;
+    }
+}