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diff --git a/ingen/serialisation/Serialiser.hpp b/ingen/serialisation/Serialiser.hpp
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+/* This file is part of Ingen.
+ * Copyright 2007-2011 David Robillard <http://drobilla.net>
+ *
+ * Ingen is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 2 of the License, or (at your option) any later
+ * version.
+ *
+ * Ingen is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef INGEN_SERIALISATION_SERIALISER_HPP
+#define INGEN_SERIALISATION_SERIALISER_HPP
+
+#include <stdexcept>
+#include <string>
+
+#include "raul/Path.hpp"
+#include "raul/SharedPtr.hpp"
+
+#include "sord/sordmm.hpp"
+
+#include "ingen/GraphObject.hpp"
+
+namespace Ingen {
+
+class Plugin;
+class GraphObject;
+class Patch;
+class Node;
+class Port;
+class Connection;
+
+namespace Shared { class World; class Store; }
+
+namespace Serialisation {
+
+/** Serialises Ingen objects (patches, nodes, etc) to RDF.
+ *
+ * \ingroup IngenSerialisation
+ */
+class Serialiser
+{
+public:
+	Serialiser(Shared::World& world);
+	virtual ~Serialiser();
+
+	typedef GraphObject::Properties Properties;
+
+	virtual void to_file(SharedPtr<const GraphObject> object,
+	                     const std::string&           filename);
+
+	virtual void write_bundle(SharedPtr<const Patch> patch,
+	                          const std::string&     path);
+
+	virtual std::string to_string(SharedPtr<const GraphObject> object,
+	                              const std::string&           base_uri,
+	                              const Properties&            extra_rdf);
+
+	virtual void start_to_string(const Raul::Path&  root,
+	                             const std::string& base_uri);
+
+	virtual void serialise(SharedPtr<const GraphObject> object) throw (std::logic_error);
+
+	virtual void serialise_connection(const Sord::Node& parent,
+	                                  SharedPtr<const Connection> c) throw (std::logic_error);
+
+	virtual std::string finish();
+
+private:
+	struct Impl;
+	Impl* me;
+};
+
+} // namespace Serialisation
+} // namespace Ingen
+
+#endif // INGEN_SERIALISATION_SERIALISER_HPP