--- /dev/null
+// Copyright (C) 2007-2010 CEA/DEN, EDF R&D, OPEN CASCADE
+//
+// Copyright (C) 2003-2007 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
+// CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation; either
+// version 2.1 of the License.
+//
+// This library 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
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+//
+// See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
+//
+
+// File : SALOMEDSClient_Observer.hxx
+// Author : Nicolas GEIMER
+// Module : SALOME
+//
+#ifndef __SALOMEDSClient_OBSERVER_H__
+#define __SALOMEDSClient_OBSERVER_H__
+
+#include <string>
+
+class SALOMEDSClient_Observer
+{
+
+ public:
+ virtual void notifyObserver(const std::string& theID,const std::string& event) = 0;
+
+};
+
+
+#endif