Persistence.h

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#pragma once
#include <Base/Base.h>
#include <cassert>
 
namespace Base
{
class Reader;
class AbstractXMLReader;
class AbstractWriter;
class String;
 
class LX_BASE_EXPORT PersistenceVersion
{
public:
    int number = 0;
    int documentVersionMajor = 0;
    int documentVersionMinor = 0;
};
 
class LX_BASE_EXPORT Persistence : public Base::BaseClass
{
    TYPESYSTEM_HEADER();
 
public:
    virtual void save(Base::AbstractWriter& /*writer*/, Base::PersistenceVersion& /*save_version*/) = 0;
 
    virtual void restore(Base::AbstractXMLReader& /*reader*/, Base::PersistenceVersion& /*version*/) = 0;
 
    virtual void saveDocFile(Base::AbstractWriter& /*writer*/, const Base::String& /*filename*/, const Base::String& /*tmpdir*/) { assert(0); }
    virtual void restoreDocFile(Base::Reader& /*reader*/, const Base::String& /*tmpdir*/) { assert(0); }
    virtual bool mustbeSaved() const { return false; }
 
    virtual bool createSQL(Base::AbstractWriter& /*writer*/, Base::PersistenceVersion& /*save_version*/, bool) { return false; }
 
    static std::string encodeAttribute(const std::string&);
};
 
}  // namespace Base