diff -r 98b901d7bb95 -r bef6648e79b1 include/relpipe/writer/Factory.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/include/relpipe/writer/Factory.h	Mon Aug 13 20:30:55 2018 +0200
@@ -0,0 +1,19 @@
+#pragma once
+
+#include <string>
+#include <iostream>
+#include <vector>
+
+#include "typedefs.h"
+#include "TypeId.h"
+
+namespace relpipe {
+namespace writer {
+
+class Factory {
+public:
+	static RelationalWriter* create(std::ostream &output);
+};
+
+}
+}