CompactIOField.H

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-------------------------------------------------------------------------------
    Copyright (C) 2011-2017 OpenFOAM Foundation
    Copyright (C) 2020-2022 OpenCFD Ltd.
-------------------------------------------------------------------------------
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::CompactIOField
 
Description
    A Field of objects of type <T> with automated input and output using
    a compact storage. Behaves like IOField except when binary output in
    case it writes a CompactListList.
 
    Useful for fields of small subfields e.g. in lagrangian
 
SourceFiles
    CompactIOField.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef Foam_CompactIOField_H
#define Foam_CompactIOField_H
 
#include "IOField.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
// Forward Declarations
template<class T, class BaseType> class CompactIOField;
 
template<class T, class BaseType> Istream& operator>>
(
    Istream&,
    CompactIOField<T, BaseType>&
);
 
template<class T, class BaseType> Ostream& operator<<
(
    Ostream&,
    const CompactIOField<T, BaseType>&
);
 
/*---------------------------------------------------------------------------*\
                        Class CompactIOField Declaration
\*---------------------------------------------------------------------------*/
 
template<class T, class BaseType>
class CompactIOField
:
    public regIOobject,
    public Field<T>
{
    // Private Member Functions
 
        //- Read according to header type
        void readFromStream(const bool valid = true);
 
public:
 
    //- Runtime type information
    TypeName("FieldField");
 
 
    // Constructors
 
        //- Default copy construct
        CompactIOField(const CompactIOField&) = default;
 
        //- Construct from IOobject
        explicit CompactIOField(const IOobject& io);
 
        //- Construct from IOobject, with local processor conditional reading
        CompactIOField(const IOobject& io, const bool valid);
 
        //- Construct from IOobject and zero size (if not read)
        CompactIOField(const IOobject& io, Foam::zero);
 
        //- Construct from IOobject and size (if not read)
        CompactIOField(const IOobject& io, const label len);
 
        //- Construct from IOobject and a List/Field content
        CompactIOField(const IOobject& io, const UList<T>& content);
 
        //- Construct by transferring the Field contents
        CompactIOField(const IOobject& io, Field<T>&& content);
 
 
    //- Destructor
    virtual ~CompactIOField() = default;
 
 
    // Member Functions
 
        //- Write using stream options
        virtual bool writeObject
        (
            IOstreamOption streamOpt,
            const bool valid
        ) const;
 
        virtual bool writeData(Ostream& os) const;
 
 
    // Member Operators
 
        //- Copy assignment of entries
        void operator=(const CompactIOField<T, BaseType>& rhs);
 
        //- Copy or move assignment of entries
        using Field<T>::operator=;
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#ifdef NoRepository
    #include "CompactIOField.C"
#endif
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //