1 // Created on: 1997-08-07
2 // Created by: Jean-Louis Frenkel
3 // Copyright (c) 1997-1999 Matra Datavision
4 // Copyright (c) 1999-2014 OPEN CASCADE SAS
6 // This file is part of Open CASCADE Technology software library.
8 // This library is free software; you can redistribute it and/or modify it under
9 // the terms of the GNU Lesser General Public License version 2.1 as published
10 // by the Free Software Foundation, with special exception defined in the file
11 // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
12 // distribution for complete text of the license and disclaimer of any warranty.
14 // Alternatively, this file may be used under the terms of Open CASCADE
15 // commercial license or contractual agreement.
17 #ifndef _CDF_Session_HeaderFile
18 #define _CDF_Session_HeaderFile
20 #include <Standard.hxx>
21 #include <Standard_Type.hxx>
23 #include <Standard_Boolean.hxx>
24 #include <Standard_Transient.hxx>
26 class CDF_Application;
27 class CDF_MetaDataDriver;
28 class Standard_NoSuchObject;
29 class Standard_MultiplyDefined;
33 DEFINE_STANDARD_HANDLE(CDF_Session, Standard_Transient)
36 class CDF_Session : public Standard_Transient
42 Standard_EXPORT CDF_Session();
44 //! returns true if a session has been created.
45 Standard_EXPORT static Standard_Boolean Exists();
47 //! returns the only one instance of Session
48 //! that has been created.
49 Standard_EXPORT static Handle(CDF_Session) CurrentSession();
51 //! returns the directory of the session;
52 Standard_EXPORT Handle(CDF_Directory) Directory() const;
54 Standard_EXPORT Standard_Boolean HasCurrentApplication() const;
56 Standard_EXPORT Handle(CDF_Application) CurrentApplication() const;
58 Standard_EXPORT void SetCurrentApplication (const Handle(CDF_Application)& anApplication);
60 Standard_EXPORT void UnsetCurrentApplication();
62 Standard_EXPORT Handle(CDF_MetaDataDriver) MetaDataDriver() const;
64 Standard_EXPORT void LoadDriver();
67 friend class CDF_Application;
70 DEFINE_STANDARD_RTTIEXT(CDF_Session,Standard_Transient)
80 Handle(CDF_Directory) myDirectory;
81 Handle(CDF_Application) myCurrentApplication;
82 Standard_Boolean myHasCurrentApplication;
83 Handle(CDF_MetaDataDriver) myMetaDataDriver;
94 #endif // _CDF_Session_HeaderFile