--- /dev/null
+// Created on: 2017-06-16
+// Created by: Natalia ERMOLAEVA
+// Copyright (c) 2017 OPEN CASCADE SAS
+//
+// This file is part of Open CASCADE Technology software library.
+//
+// This library is free software; you can redistribute it and/or modify it under
+// the terms of the GNU Lesser General Public License version 2.1 as published
+// by the Free Software Foundation, with special exception defined in the file
+// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
+// distribution for complete text of the license and disclaimer of any warranty.
+//
+// Alternatively, this file may be used under the terms of Open CASCADE
+// commercial license or contractual agreement.
+
+#ifndef DFBrowser_ThreadItem_H
+#define DFBrowser_ThreadItem_H
+
+#include <Standard_Macro.hxx>
+
+//! \class DFBrowser_ThreadItem
+//! An abstract interface for candidates to be processed in a separate thread.
+//! To do this, new thread item should inherit this interface and be started in DFBrowser_Thread.
+class DFBrowser_ThreadItem
+{
+public:
+
+ //! Constructor
+ DFBrowser_ThreadItem() {}
+
+ //! Destructor
+ virtual ~DFBrowser_ThreadItem() {}
+
+ //! Algorithm of this item work. It will be performed only once
+ virtual void Run() = 0;
+
+ //! Applying values accepted by algorithm
+ virtual void ApplyValues() = 0;
+};
+
+
+#endif