OSGField.h

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 * This library is free software; you can redistribute it and/or modify it   *
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 * This library 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         *
 * Library General Public License for more details.                          *
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#ifndef _OSGFIELD_H_
#define _OSGFIELD_H_
#ifdef __sgi
#pragma once
#endif

#include <OSGBase.h>
#include <OSGBaseTypes.h>

#include <OSGFieldType.h>
#include <OSGIDString.h>
#include <OSGLog.h>
#include <string>

OSG_BEGIN_NAMESPACE

#ifdef OSG_DOC_FILES_IN_MODULE

#endif

class StringConversionStateBase;

template <class T>
struct ErrorFromToString
{
    static bool              getFromString(      T      &,
                                           const Char8 *&)
    {
        SLOG << "Error From String Conversion not available for " << std::endl;

        return false;
    }

    static void             putToString(const T           &,
                                              std::string &)
    {
        SLOG << "Error To String Conversion not available for " << std::endl;
    }
};

class OSG_BASE_DLLMAPPING Field
{
    /*==========================  PUBLIC  =================================*/

  public:

    /*---------------------------------------------------------------------*/
    virtual ~Field(void); 

    /*---------------------------------------------------------------------*/
    virtual const FieldType              &getType       (void) const = 0;
            const DataType               &getContentType(void) const;

                  FieldType::Cardinality  getCardinality(void) const;

    virtual       bool                    isEmpty       (void) const = 0;

    virtual       UInt32                  getSize       (void) const = 0;

    /*---------------------------------------------------------------------*/
    virtual void          pushValueByStr(const Char8       *str  )       = 0;
    virtual std::string  &getValueByStr (      std::string &str  ) const = 0;
    virtual std::string  &getValueByStr (      std::string &str,
                                 StringConversionStateBase &state) const = 0;

    virtual std::string  &getValueByStr (      std::string &str,
                                               UInt32       index) const = 0;

    /*---------------------------------------------------------------------*/
    virtual void setAbstrValue(const Field &obj) = 0;

    /*---------------------------------------------------------------------*/
    virtual void dump(void) const = 0;

    /*=========================  PROTECTED  ===============================*/

  protected:

    /*---------------------------------------------------------------------*/
    Field(void);
    Field(const Field &source);

    /*==========================  PRIVATE  ================================*/

  private:

    void operator =(const Field &source);
};

OSG_END_NAMESPACE

#define OSGFIELD_HEADER_CVSID "@(#)$Id: $"

#endif /* _OSGFIELD_HPP_ */

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