ODBCParam.h

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#ifndef __DCL_ODBC_PARAM_H__
#define __DCL_ODBC_PARAM_H__    20251129
 
__DCL_BEGIN_NAMESPACE
 
typedef union __PARAM_BUFFER_MINIMAL {
    int32_t         i32;
    int64_t         i64;
    uint32_t        u32;
    uint64_t        u64;
    float           f32;
    double          f64;
    DATE_STRUCT     date;
    TIME_STRUCT     time;
    TIMESTAMP_STRUCT    timestamp;
    SQL_INTERVAL_STRUCT interval;
    SQL_SS_TIME2_STRUCT             time2;
    SQL_SS_TIMESTAMPOFFSET_STRUCT   timestampoffset;
    char            maxsize[32];
} PARAM_BUFFER_MINIMAL;
 
class InputStream;
 
class ODBCParam : public SQL::Param, public ODBCData
{
    DECLARE_CLASSINFO(ODBCParam)
protected:
    _CONST void*  __val;
    size_t          __valSize;
    SQL::DataType  __valType;
    SQL::DataType  __outputType;
 
protected:
    virtual ODBCQuery* query() const;
 
public:
    bool init(SQL::Query* _query, BIND* _bind);
 
    bool onBeforeExecute();
    bool onNeedData();
    bool onAfterExecute();
 
    ODBCParam();
    virtual ~ODBCParam();
 
    // Field implementaion
    virtual const wchar_t* serverDataTypeName() const;
 
    virtual bool __getDataSize(
        size_t*         _size,
        bool            _maxsize
    );
 
    virtual bool __getData(
        void*           _buf,       // data, OUT
        size_t*         _size,      // sizeof *_buf, IN OUT
        SQL::DataType  _bufType
    );
 
    // Param implementaion
 
    // output parameter support
    virtual bool __setOutputType(
        SQL::DataType  _sqlType
    );
 
    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);
};
 
__DCL_END_NAMESPACE
 
#endif  // __DCL_ODBC_PARAM_H__