PqParam.h

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#ifndef __DCL_PQ_PARAM_H__
#define __DCL_PQ_PARAM_H__      20260106
 
__DCL_BEGIN_NAMESPACE
 
class PqParam : public SQL::Param
{
    DECLARE_CLASSINFO(PqParam)
protected:
    int         __index;
    Oid         __type;
 
    union {
        uint8_t     u8;
        uint16_t    u16;
        uint32_t    u32;
        uint64_t    u64;
    } __data;
    ByteString __bytes;
 
protected:
    PqQuery* query() const;
    PqConnection* conn() const;
 
public:
    bool init(SQL::Query* _query, int _index, const PGresult* _res);
    bool onAfterExecute();
 
    PqParam();
    virtual ~PqParam();
 
    // interfaces
    virtual const wchar_t* serverDataTypeName() const;
    virtual void setNull();
 
    virtual bool __setData(
        _CONST void*  _val,
        size_t          _size,
        SQL::DataType  _valType,
        SQL::DataType  _sqlType
    );
 
    // implementation
    bool setInteger(const void* _val, size_t _size);
    bool setUInteger(const void* _val, size_t _size);
    bool setFloat(const void* _val, size_t _size);
    bool setDate(const SQL::Date* _val, size_t _size);
    bool setTime(const SQL::Time* _val, size_t _size);
    bool setTimeStamp(const SQL::TimeStamp* _val, size_t _size);
    bool setInterval(const SQL::Interval* _val, size_t _size);
 
    bool setBytes(
        _CONST void*  _val,
        size_t          _size,
        SQL::DataType  _valType,
        SQL::DataType  _sqlType
    );
};
 
inline PqQuery* PqParam::query() const
{
    return (PqQuery*)Param::__queryHandle;
}
 
inline PqConnection* PqParam::conn() const
{
    return query()->conn();
}
 
__DCL_END_NAMESPACE
 
#endif  // __DCL_PQ_PARAM_H__