IFXField.h

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#ifndef __DCL_IFX_FIELD_H__
#define __DCL_IFX_FIELD_H__ 20030717
 
__DCL_BEGIN_NAMESPACE
 
class IFXField : public SQL::Field
{
    DECLARE_CLASSINFO(IFXField)
protected:
    ifx_sqlvar_t*   __sqlvar;
    short int       __indicator;
 
    size_t          __maxDataSize;
    size_t          __dataSize; // for SQLDECIMAL, SQLVCHAR, SQLNCHAR
 
protected:
    IFXQuery* query() const;
    IFXConnection* conn() const;
 
public:
    IFXField();
    virtual ~IFXField();
 
    bool init(SQL::Query* _query, ifx_sqlvar_t* _sqlvar);
    bool onAfterFetch();
 
    // interfaces
    virtual const wchar_t* serverDataTypeName() const;
    virtual bool __getDataSize(size_t* _size, bool _maxsize);
 
    virtual bool __getData(
        void* _buf,
        size_t* _size,
        SQL::DataType  _bufType
    );
 
protected:
    // implementation
    bool getInteger(void* _buf, size_t* _size);
    bool getUInteger(void* _buf, size_t* _size);
    bool getFloat(void* _buf, size_t* _size);
};
 
inline IFXQuery* IFXField::query() const 
{ 
    return (IFXQuery*)Field::__queryHandle; 
}
 
inline IFXConnection* IFXField::conn() const
{
    return query()->conn();
}
 
__DCL_END_NAMESPACE
 
#endif  // __DCL_IFX_FIELD_H__