include/opencascade/Expr_SingleRelation.hxx

0001 // Created on: 1991-01-14
0002 // Created by: Arnaud BOUZY
0003 // Copyright (c) 1991-1999 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 _Expr_SingleRelation_HeaderFile
0018 #define _Expr_SingleRelation_HeaderFile
0019
0020 #include <Standard.hxx>
0021 #include <Standard_Type.hxx>
0022
0023 #include <Expr_GeneralRelation.hxx>
0024 #include <Standard_Integer.hxx>
0025 class Expr_GeneralExpression;
0026 class Expr_NamedUnknown;
0027
0028
0029 class Expr_SingleRelation;
0030 DEFINE_STANDARD_HANDLE(Expr_SingleRelation, Expr_GeneralRelation)
0031
0032
0033 class Expr_SingleRelation : public Expr_GeneralRelation
0034 {
0035
0036 public:
0037
0038
0039   //! Defines the first member of the relation
0040   Standard_EXPORT void SetFirstMember (const Handle(Expr_GeneralExpression)& exp);
0041
0042   //! Defines the second member of the relation
0043   Standard_EXPORT void SetSecondMember (const Handle(Expr_GeneralExpression)& exp);
0044
0045   //! Returns the first member of the relation
0046   Standard_EXPORT Handle(Expr_GeneralExpression) FirstMember() const;
0047
0048   //! Returns the second member of the relation
0049   Standard_EXPORT Handle(Expr_GeneralExpression) SecondMember() const;
0050
0051   //! Tests if <me> is linear between its NamedUnknowns.
0052   Standard_EXPORT Standard_Boolean IsLinear() const Standard_OVERRIDE;
0053
0054   //! Returns the number of relations contained in <me>.
0055   Standard_EXPORT Standard_Integer NbOfSubRelations() const Standard_OVERRIDE;
0056
0057   //! Returns the number of SingleRelations contained in
0058   //! <me> (Always 1).
0059   Standard_EXPORT Standard_Integer NbOfSingleRelations() const Standard_OVERRIDE;
0060
0061   //! Returns the relation denoted by <index> in <me>.
0062   //! An exception is raised if index is out of range.
0063   Standard_EXPORT Handle(Expr_GeneralRelation) SubRelation (const Standard_Integer index) const Standard_OVERRIDE;
0064
0065   //! Tests if <me> contains <exp>.
0066   Standard_EXPORT Standard_Boolean Contains (const Handle(Expr_GeneralExpression)& exp) const Standard_OVERRIDE;
0067
0068   //! Replaces all occurrences of <var> with <with> in <me>.
0069   Standard_EXPORT void Replace (const Handle(Expr_NamedUnknown)& var, const Handle(Expr_GeneralExpression)& with) Standard_OVERRIDE;
0070
0071
0072
0073
0074   DEFINE_STANDARD_RTTIEXT(Expr_SingleRelation,Expr_GeneralRelation)
0075
0076 protected:
0077
0078
0079
0080
0081 private:
0082
0083
0084   Handle(Expr_GeneralExpression) myFirstMember;
0085   Handle(Expr_GeneralExpression) mySecondMember;
0086
0087
0088 };
0089
0090
0091
0092
0093
0094
0095
0096 #endif // _Expr_SingleRelation_HeaderFile