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>
25 #include <Standard_Mutex.hxx>
26 #include <CDM_ApplicationDirectory.hxx>
28 class CDF_Application;
29 class CDF_MetaDataDriver;
30 class Standard_NoSuchObject;
31 class Standard_MultiplyDefined;
34 DEFINE_STANDARD_HANDLE(CDF_Session, Standard_Transient)
37 class CDF_Session : public Standard_Transient
43 //! returns true if a session has been created.
44 Standard_EXPORT static Standard_Boolean Exists();
46 //! Creates a session if it does not exists yet
47 Standard_EXPORT static Handle(CDF_Session) Create();
49 //! returns the only one instance of Session
50 //! that has been created.
51 Standard_EXPORT static Handle(CDF_Session) CurrentSession();
53 //! returns true if theApp is added to the session
54 Standard_EXPORT Standard_Boolean AddApplication(const Handle(CDF_Application)& theApp, const Standard_ThreadId theID);
56 //! returns true if theApp is added to the session
57 Standard_EXPORT Standard_Boolean AddApplication(const CDF_Application* theApp, const Standard_ThreadId theID);
59 //! returns true if theApp is removed from the session
60 Standard_EXPORT Standard_Boolean RemoveApplication(const Standard_ThreadId theID);
62 //! returns true if theApp is removed from the session
63 Standard_EXPORT Standard_Boolean FindApplication(const Standard_ThreadId, Handle(CDF_Application)& theApp) const;
66 friend class CDF_Application;
69 DEFINE_STANDARD_RTTIEXT(CDF_Session,Standard_Transient)
73 //! Use "Create" session for creation of an instance
82 CDM_ApplicationDirectory myAppDirectory;
83 Handle(CDF_MetaDataDriver) myMetaDataDriver;
92 #endif // _CDF_Session_HeaderFile