include/opencascade/TDataStd_Relation.hxx

0001 // Created on: 1997-12-10
0002 // Created by: Denis PASCAL
0003 // Copyright (c) 1997-1999 Matra Datavision
0004 // Copyright (c) 1999-2014 OPEN CASCADE SAS
0005 //
0006 // This file is part of Open CASCADE Technology software library.
0007 //
0008 // This library is free software; you can redistribute it and/or modify it under
0009 // the terms of the GNU Lesser General Public License version 2.1 as published
0010 // by the Free Software Foundation, with special exception defined in the file
0011 // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
0012 // distribution for complete text of the license and disclaimer of any warranty.
0013 //
0014 // Alternatively, this file may be used under the terms of Open CASCADE
0015 // commercial license or contractual agreement.
0016
0017 #ifndef _TDataStd_Relation_HeaderFile
0018 #define _TDataStd_Relation_HeaderFile
0019
0020 #include <TDataStd_Expression.hxx>
0021
0022 class TDataStd_Relation;
0023 DEFINE_STANDARD_HANDLE(TDataStd_Relation, TDataStd_Expression)
0024
0025 //! Relation attribute.
0026 //! ==================
0027 //!
0028 //! *  Data Structure of  the  Expression is stored in a
0029 //! string and references to variables used by the string
0030 //!
0031 //! Warning:  To be consistent,  each  Variable  referenced by  the
0032 //! relation must have its equivalent in the string
0033 class TDataStd_Relation : public TDataStd_Expression
0034 {
0035
0036 public:
0037
0038
0039   //! class methods
0040   //! =============
0041   Standard_EXPORT static const Standard_GUID& GetID();
0042
0043   //! Find, or create, an Relation attribute.
0044   //! Real methods
0045   //! ============
0046   Standard_EXPORT static Handle(TDataStd_Relation) Set (const TDF_Label& label);
0047
0048   Standard_EXPORT TDataStd_Relation();
0049
0050   Standard_EXPORT void SetRelation (const TCollection_ExtendedString& E);
0051
0052   Standard_EXPORT const TCollection_ExtendedString& GetRelation() const;
0053
0054   Standard_EXPORT const Standard_GUID& ID() const Standard_OVERRIDE;
0055
0056   Standard_EXPORT virtual Standard_OStream& Dump (Standard_OStream& anOS) const Standard_OVERRIDE;
0057
0058   //! Dumps the content of me into the stream
0059   Standard_EXPORT virtual void DumpJson (Standard_OStream& theOStream, Standard_Integer theDepth = -1) const Standard_OVERRIDE;
0060
0061
0062
0063   DEFINE_DERIVED_ATTRIBUTE(TDataStd_Relation,TDataStd_Expression)
0064 };
0065
0066 #endif // _TDataStd_Relation_HeaderFile