PgField.h

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#ifndef __DCL_PG_FIELD_H__
#define __DCL_PG_FIELD_H__      20250403
 
__DCL_BEGIN_NAMESPACE
 
class PgField : public SQL::Field
{
    DECLARE_CLASSINFO(PgField)
protected:
    sqlvar_t*   __sqlvar;
    size_t      __maxDataSize;
 
protected:
    void setErrorStatus(SQL::Error _error, long _SQLCODE,   
                const wchar_t* _filename, int _line);
    void setErrorStatus(const ByteString& _message,
                const wchar_t* _filename, int _line);
 
    PgQuery* query() const;
 
public:
    PgField();
    virtual ~PgField();
 
    bool init(SQL::Query* _query, sqlvar_t* _sqlvar);
    bool onAfterFetch(sqlvar_t* _sqlvar);
 
    // interfaces
    virtual bool isNull() const;
    virtual const wchar_t* serverDataTypeName() const;
    virtual bool __getDataSize(size_t* _size, bool _maxSize);
    virtual bool __getData(void* _pv, size_t* _size, SQL::DataType _dataType);
 
protected:
    // implementation
    bool getInteger(void* _pv, size_t* _size);
    bool getUInteger(void* _pv, size_t* _size);
    bool getFloat(void* _pv, size_t* _size);
};
 
 
inline void PgField::setErrorStatus(SQL::Error _error, long _SQLCODE,  
                const wchar_t* _filename, int _line)
{
    ((PgConnection*)Field::connection())->setErrorStatus(
                _error,
                _SQLCODE,
                _filename,
                _line
                );
}
 
inline void PgField::setErrorStatus(const ByteString& _message,
                        const wchar_t* _filename, int _line)
{
    ((PgConnection*)Field::connection())->setErrorStatus(
                _message,
                _filename,
                _line
                );
}
 
inline PgQuery* PgField::query() const 
{ 
    return (PgQuery*)Field::__queryHandle; 
}
 
 
__DCL_END_NAMESPACE
 
#endif  // __DCL_INTERBASE_FIELD_H__