1 files changed, 45 insertions, 0 deletions
diff --git a/raul/Stateful.h b/raul/Stateful.h
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+++ b/raul/Stateful.h
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+/* This file is part of Raul.
+ * Copyright (C) 2007 Dave Robillard <http://drobilla.net>
+ * 
+ * Raul 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.
+ * 
+ * Raul 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 STATEFUL_H
+#define STATEFUL_H
+
+#include "raul/RDFWriter.h"
+
+namespace Raul {
+
+
+class RDFWriter;
+
+
+class Stateful {
+public:
+	virtual ~Stateful() {}
+
+	virtual void write_state(RDFWriter& writer) = 0;
+	
+	RdfId id() const { return _id; }
+	void  set_id(const RdfId& id) { _id = id; }
+
+protected:
+	RdfId _id;
+};
+	
+
+} // namespace Raul
+
+#endif // STATEFUL_H