--- /dev/null
+// Copyright (c) 2015 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 _StdLPersistent_Dependency_HeaderFile
+#define _StdLPersistent_Dependency_HeaderFile
+
+#include <StdObjMgt_Attribute.hxx>
+#include <StdLPersistent_HString.hxx>
+#include <StdLPersistent_HArray1.hxx>
+
+#include <TDataStd_Expression.hxx>
+#include <TDataStd_Relation.hxx>
+
+
+class StdLPersistent_Dependency
+{
+ template <class AttribClass>
+ class instance : public StdObjMgt_Attribute<AttribClass>
+ {
+ public:
+ //! Read persistent data from a file.
+ inline void Read (StdObjMgt_ReadData& theReadData)
+ { theReadData >> myName >> myVariables; }
+
+ //! Import transient attribuite from the persistent data.
+ void Import (const Handle(AttribClass)& theAttribute) const;
+
+ private:
+ StdObjMgt_ContentTypes::Reference<StdLPersistent_HString::Extended> myName;
+ StdObjMgt_ContentTypes::Reference<StdLPersistent_HArray1::Persistent> myVariables;
+ };
+
+public:
+ typedef instance<TDataStd_Expression> Expression;
+ typedef instance<TDataStd_Relation> Relation;
+};
+
+#endif