ContainerBase.h

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/******************************************************************************
*
* Copyright Saab AB, 2006-2013 (http://safir.sourceforge.net)
* 
* Created by: Lars Hagström / stlrha
*
*******************************************************************************
*
* This file is part of Safir SDK Core.
*
* Safir SDK Core is free software: you can redistribute it and/or modify
* it under the terms of version 3 of the GNU General Public License as
* published by the Free Software Foundation.
*
* Safir SDK Core 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 Safir SDK Core.  If not, see <http://www.gnu.org/licenses/>.
*
******************************************************************************/

#ifndef __DOTS_CONTAINER_BASE_H__
#define __DOTS_CONTAINER_BASE_H__

namespace Safir
{
namespace Dob
{
namespace Typesystem
{
    class ContainerBase
    {
    public:
        ContainerBase(): m_bIsChanged(false) {}

        virtual ~ContainerBase() {}

        virtual bool IsNull() const = 0;

        virtual void SetNull() = 0;

        virtual bool IsChanged() const {return m_bIsChanged;}

        virtual void SetChanged(const bool changed) {m_bIsChanged = changed;}

        virtual void Copy(const ContainerBase & that) = 0;
    protected:
        friend class BlobOperations;
        //BlobOperations is allowed to access the m_bIsChanged field directly

        ContainerBase & operator=(const ContainerBase & other)
        {m_bIsChanged = other.m_bIsChanged; return *this;}

        bool m_bIsChanged;
    };

    static inline bool IsChanged(const ContainerBase & container) {return container.IsChanged();}

}
}
}
#endif