DimensionedFieldFunction.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
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.
 
    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    for more details.
 
    You should have received a copy of the GNU General Public License
    along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
 
Class
    Foam::DimensionedFieldFunction
 
Description
    Base class for run-time selectable internal and patch field initialisation
    evaluation and update with dimension checking.
 
SourceFiles
    DimensionedFieldFunction.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef DimensionedFieldFunction_H
#define DimensionedFieldFunction_H
 
#include "DimensionedFieldFwd.H"
#include "runTimeSelectionTables.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
/*---------------------------------------------------------------------------*\
                 Class DimensionedFieldFunction Declaration
\*---------------------------------------------------------------------------*/
 
template<class DimensionedFieldType>
class DimensionedFieldFunction
{
 
protected:
 
    //- Reference to the field the function applies to
    DimensionedFieldType& field_;
 
 
public:
 
    //- Runtime type information
    TypeName("DimensionedFieldFunction");
 
 
    // Declare runtime constructor selection tables
 
        declareRunTimeSelectionTable
        (
            autoPtr,
            DimensionedFieldFunction,
            dictionary,
            (
                const dictionary& dict,
                DimensionedFieldType& field
            ),
            (dict, field)
        );
 
 
    // Constructors
 
        //- Construct with dictionary to initialise given field
        DimensionedFieldFunction
        (
            const dictionary& dict,
            DimensionedFieldType& field
        );
 
        //- Construct a copy for the given field
        DimensionedFieldFunction
        (
            const DimensionedFieldFunction& dff,
            DimensionedFieldType& field
        );
 
        //- Disallow default bitwise copy construction
        DimensionedFieldFunction
        (
            const DimensionedFieldFunction<DimensionedFieldType>&
        ) = delete;
 
        //- Construct and return a clone for the specified field
        virtual autoPtr<DimensionedFieldFunction<DimensionedFieldType>>
        clone(DimensionedFieldType& field) const = 0;
 
        //- Construct and return a clone for the specified field
        virtual autoPtr<DimensionedFieldFunction<DimensionedFieldType>>
        clone() const
        {
            NotImplemented;
            return autoPtr<DimensionedFieldFunction<DimensionedFieldType>>
            (
                nullptr
            );
        }
 
 
    // Selectors
 
        //- Select null constructed
        static autoPtr<DimensionedFieldFunction<DimensionedFieldType>> New
        (
            const dictionary& dict,
            DimensionedFieldType& field
        );
 
 
    //- Destructor
    virtual ~DimensionedFieldFunction()
    {}
 
 
    // Member Functions
 
        //- Evaluate the function and set the field
        virtual void evaluate() = 0;
 
        //- Update the field if the function has changed and return true
        //  otherwise return false
        virtual bool update()
        {
            return false;
        }
 
        //- Reset the field size
        virtual void reset()
        {
            field_.setSize(field_.mesh().size());
            evaluate();
        }
 
        //- Write data to dictionary stream
        virtual void write(Ostream& os) const = 0;
 
 
    // Member Operators
 
        //- Disallow default bitwise assignment
        void operator=
        (
            const DimensionedFieldFunction<DimensionedFieldType>&
        ) = delete;
};
 
 
template<class DimensionedFieldType>
void writeEntry
(
    Ostream& os,
    const word& key,
    const DimensionedFieldFunction<DimensionedFieldType>& f
);
 
 
namespace DimensionedFieldFunctions
{
    //- Dummy function to call on a variable to avoid "unused variable" warnings
    template<class T> void ignore(const T&){}
}
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#define defineDimensionedFieldFunction(DimensionedFieldType)                   \
                                                                               \
    typedef DimensionedFieldFunction<DimensionedFieldType>                     \
        DimensionedFieldType##DimensionedFieldFunction;                        \
    defineNamedTemplateTypeNameAndDebug                                        \
    (                                                                          \
        DimensionedFieldType##DimensionedFieldFunction,                        \
        0                                                                      \
    );                                                                         \
    defineTemplateRunTimeSelectionTable                                        \
    (                                                                          \
        DimensionedFieldType##DimensionedFieldFunction,                        \
        dictionary                                                             \
    );
 
 
#define addDimensionedFieldFunction(SS, DimensionedFieldType)                  \
                                                                               \
    typedef DimensionedFieldFunction<DimensionedFieldType>                     \
        DimensionedFieldType##DimensionedFieldFunction;                        \
    typedef SS<DimensionedFieldType>                                           \
        DimensionedFieldType##SS##DimensionedFieldFunction;                    \
    defineNamedTemplateTypeNameAndDebug                                        \
    (                                                                          \
        DimensionedFieldType##SS##DimensionedFieldFunction,                    \
        0                                                                      \
    );                                                                         \
    addToRunTimeSelectionTable                                                 \
    (                                                                          \
        DimensionedFieldType##DimensionedFieldFunction,                        \
        DimensionedFieldType##SS##DimensionedFieldFunction,                    \
        dictionary                                                             \
    )
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#ifdef NoRepository
#include "DimensionedFieldFunction.C"
#endif
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //