MyField.h

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#ifndef __DCL_MY_FIELD_H__
#define __DCL_MY_FIELD_H__  20031025_20250414
 
__DCL_BEGIN_NAMESPACE
 
class MyField : public SQL::Field
{
    DECLARE_CLASSINFO(MyField)
protected:
    unsigned int        __index;
    const MYSQL_FIELD*  __field;
    const MYSQL_BIND*   __bind;
    
    size_t          __maxsize;
 
protected:
    void setErrorStatus(SQL::Error _error,
            const wchar_t* _filename, int _line);
    void setErrorStatus(const ByteString& _message,
            const wchar_t* _filename, int _line);
    MyQuery* query() const;
 
public:
    MyField();
    virtual ~MyField();
 
    bool init(SQL::Query* _query, unsigned int _index,
        MYSQL_FIELD* _field, MYSQL_BIND* _bind);
 
    // interface
    virtual bool isNull() const;
    virtual const wchar_t* serverDataTypeName() const;
    virtual bool __getDataSize(size_t* _psize, bool _maxsize);
    virtual bool __getData(void* _pv, size_t* _psize, SQL::DataType _dataType);
 
protected:
    // implementation
    bool getInteger(void* _pv, size_t* _psize);
    bool getUInteger(void* _pv, size_t* _psize);
    bool getFloat(void* _pv, size_t* _psize);
    bool getDate(SQL::Date* _pv, size_t* _psize);
    bool getTimeStamp(SQL::TimeStamp* _pv, size_t* _psize);
    bool getTime(SQL::Time* _pv, size_t* _psize);
    bool getInterval(SQL::Interval* _pv, size_t* _psize);
};
 
inline void MyField::setErrorStatus(SQL::Error _error,
        const wchar_t* _filename, int _line)
{
    ((MyConnection*)Field::connection())->setErrorStatus(
            _error,
            _filename,
            _line
            );
}
 
inline void MyField::setErrorStatus(const ByteString& _message,
        const wchar_t* _filename, int _line)
{
    ((MyConnection*)Field::connection())->setErrorStatus(
            _message,
            _filename,
            _line
            );
}
 
inline MyQuery* MyField::query() const 
{ 
    return (MyQuery*)Field::__queryHandle; 
}
 
const wchar_t* __dataTypeName(enum_field_types _type, unsigned int _flags);
 
__DCL_END_NAMESPACE
 
#endif  // __DCL_MY_FIELD_H__