ThermoRefPair.H

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License
    This file is part of OpenFOAM.
 
    OpenFOAM is free software: you can redistribute it and/or modify it
    under the terms of the GNU General Public License as published by
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Class
    Foam::ThermoRefPair
 
Description
    Class containing a pair of thermo references. Handles down-casting to more
    specific thermo types by constructing one pair from another (e.g.,
    constructing a multicomponentThermo reference pair from a basicThermo
    pair). Tracks validity of the references.
 
\*---------------------------------------------------------------------------*/
 
#ifndef ThermoRefPair_H
#define ThermoRefPair_H
 
#include "fvModel.H"
#include "objectRegistry.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
/*---------------------------------------------------------------------------*\
                    Class ThermoRefPair Declaration
\*---------------------------------------------------------------------------*/
 
template<class ThermoType>
class ThermoRefPair
{
    // Private Member Data
 
        //- Validity flags
        const Pair<bool> valid_;
 
        //- The first thermo
        const ThermoType& first_;
 
        //- The second thermo
        const ThermoType& second_;
 
 
    // Private Constructors
 
        //- Construct from components
        inline ThermoRefPair
        (
            Pair<bool> valid,
            const ThermoType& first,
            const ThermoType& second
        );
 
 
public:
 
    //- Declare friendship with other thermo reference pairs
    template<class OtherThermoType>
    friend class ThermoRefPair;
 
 
    // Constructors
 
        //- Construct from a database and phase names
        inline ThermoRefPair
        (
            const objectRegistry& db,
            const Pair<word>& phaseNames
        );
 
 
    // Member Functions
 
        //- Access the validity flags
        inline const Pair<bool>& valid() const;
 
        //- Return if either validity flag is set
        inline bool either() const;
 
        //- Return if both validity flags are set
        inline bool both() const;
 
        //- Access the first thermo
        inline const ThermoType& first() const;
 
        //- Access the second thermo
        inline const ThermoType& second() const;
 
        //- Cast to a different thermo type, with error checking
        template<class OtherThermoType>
        inline ThermoRefPair<OtherThermoType> thermos() const;
 
        //- Cast to a different thermo type, with error checking
        template<class OtherThermoType>
        inline ThermoRefPair<OtherThermoType> thermos
        (
            const Pair<bool> required,
            const fvModel& model,
            const word& thermoType
        ) const;
 
 
    // Member Operators
 
        //- Access a thermo by index
        inline const ThermoType& operator[](const label i) const;
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#include "ThermoRefPairI.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //