類
struct Gain_Map_String
{
public:
static string GetStringByCmd(CMD_GAIN cmd)
{
const Gain_Map_String* p_static_self = __InitInstance();
map<CMD_GAIN, string>::const_iterator iter_map;
if(p_static_self->map_string.end() != (iter_map = p_static_self->map_string.find(cmd)))
return iter_map->second;
return string("");
}
static CMD_GAIN GetCmdByString(string& str)
{
const Gain_Map_String* p_static_self = __InitInstance();
map<CMD_GAIN, string>::const_iterator iter_map;
for (iter_map = p_static_self->map_string.begin(); iter_map != p_static_self->map_string.end(); ++iter_map)
{
if(str == iter_map->second)
return iter_map->first;
}
return CMD_GAIN_END;
}
static CMD_GAIN GetCmdByString(const char* pSZ)
{
const Gain_Map_String* p_static_self = __InitInstance();
map<CMD_GAIN, string>::const_iterator iter_map;
string str(pSZ);
for (iter_map = p_static_self->map_string.begin(); iter_map != p_static_self->map_string.end(); ++iter_map)
{
if(str == iter_map->second)
return iter_map->first;
}
return CMD_GAIN_END;
}
private:
map<CMD_GAIN, string> map_string;
static const Gain_Map_String* __InitInstance()
{
static Gain_Map_String stati_instance;
return (&stati_instance);
}
Gain_Map_String()
{
map_string[CMD_GAIN_PlaceOCOOrder] = "CMD_GAIN_PlaceOCOOrder";
map_string[CMD_GAIN_PlaceOCOOrderResult] = "CMD_GAIN_PlaceOCOOrderResult";
map_string[CMD_GAIN_PlaceSingleOrder] = "CMD_GAIN_PlaceSingleOrder";
map_string[CMD_GAIN_PlaceSingleOrderResult] = "CMD_GAIN_PlaceSingleOrderResult";
map_string[CMD_GAIN_ModifySingleOrder] = "CMD_GAIN_ModifySingleOrder";
map_string[CMD_GAIN_ModifySingleOrderResult] = "CMD_GAIN_ModifySingleOrderResult";
map_string[CMD_GAIN_GetPositionBlotter] = "CMD_GAIN_GetPositionBlotter";
map_string[CMD_GAIN_GetPositionBlotterResult] = "CMD_GAIN_GetPositionBlotterResult";
map_string[CMD_GAIN_ModifySingleASSPOrder] = "CMD_GAIN_ModifySingleASSPOrder";
map_string[CMD_GAIN_ModifySingleASSPOrderResult] = "CMD_GAIN_ModifySingleASSPOrderResult";
map_string[CMD_GAIN_DealRequest] = "CMD_GAIN_DealRequest";
map_string[CMD_GAIN_DealRequestResult] = "CMD_GAIN_DealRequestResult";
map_string[CMD_GAIN_GetPositionBlotterDataSet] = "CMD_GAIN_GetPositionBlotterDataSet";
map_string[CMD_GAIN_GetPositionBlotterDataSetResult] = "CMD_GAIN_GetPositionBlotterDataSetResult";
map_string[CMD_GAIN_GetDealBlotterWithFilter] = "CMD_GAIN_GetDealBlotterWithFilter";
map_string[CMD_GAIN_GetDealBlotterWithFilterResult] = "CMD_GAIN_GetDealBlotterWithFilterResult";
map_string[CMD_GAIN_GetOrderBlotterDataSet] = "CMD_GAIN_GetOrderBlotterDataSet";
map_string[CMD_GAIN_GetOrderBlotterDataSetResult] = "CMD_GAIN_GetOrderBlotterDataSetResult";
map_string[CMD_GAIN_GetOrderBlotter] = "CMD_GAIN_GetOrderBlotter";
map_string[CMD_GAIN_GetOrderBlotterResult] = "CMD_GAIN_GetOrderBlotterResult";
map_string[CMD_GAIN_GetRatesDataSet] = "CMD_GAIN_GetRatesDataSet";
map_string[CMD_GAIN_GetRatesDataSetResult] = "CMD_GAIN_GetRatesDataSetResult";
map_string[CMD_GAIN_GetRatesServerAuth] = "CMD_GAIN_GetRatesServerAuth";
map_string[CMD_GAIN_GetRatesServerAuthResult] = "CMD_GAIN_GetRatesServerAuthResult";
map_string[CMD_GAIN_DealRequestByDealId] = "CMD_GAIN_DealRequestByDealId";
map_string[CMD_GAIN_DealRequestByDealIdResult] = "CMD_GAIN_DealRequestByDealIdResult";
map_string[CMD_GAIN_GetSymbolBlotter] = "CMD_GAIN_GetSymbolBlotter";
map_string[CMD_GAIN_GetSymbolBlotterResult] = "CMD_GAIN_GetSymbolBlotterResult";
map_string[CMD_GAIN_CancelOrder] = "CMD_GAIN_CancelOrder";
map_string[CMD_GAIN_CancelOrderResult] = "CMD_GAIN_CancelOrderResult";
map_string[CMD_GAIN_DealRequestAtBest] = "CMD_GAIN_DealRequestAtBest";
map_string[CMD_GAIN_DealRequestAtBestResult] = "CMD_GAIN_DealRequestAtBestResult";
map_string[CMD_GAIN_ModifyOCOASSPOrder] = "CMD_GAIN_ModifyOCOASSPOrder";
map_string[CMD_GAIN_ModifyOCOASSPOrderResult] = "CMD_GAIN_ModifyOCOASSPOrderResult";
map_string[CMD_GAIN_GetMarginBlotter] = "CMD_GAIN_GetMarginBlotter";
map_string[CMD_GAIN_GetMarginBlotterResult] = "CMD_GAIN_GetMarginBlotterResult";
map_string[CMD_GAIN_PlaceSingleASSPOrder] = "CMD_GAIN_PlaceSingleASSPOrder";
map_string[CMD_GAIN_PlaceSingleASSPOrderResult] = "CMD_GAIN_PlaceSingleASSPOrderResult";
map_string[CMD_GAIN_GetDealBlotter] = "CMD_GAIN_GetDealBlotter";
map_string[CMD_GAIN_GetDealBlotterResult] = "CMD_GAIN_GetDealBlotterResult";
map_string[CMD_GAIN_PlaceOCOASSPOrder] = "CMD_GAIN_PlaceOCOASSPOrder";
map_string[CMD_GAIN_PlaceOCOASSPOrderResult] = "CMD_GAIN_PlaceOCOASSPOrderResult";
map_string[CMD_GAIN_GetAccountObject] = "CMD_GAIN_GetAccountObject";
map_string[CMD_GAIN_GetAccountObjectResult] = "CMD_GAIN_GetAccountObjectResult";
}
};
===================================================================================================================
使用
string str = Gain_Map_String::GetStringByCmd(CMD_GAIN_PlaceSingleOrder);
UINT cmd = Gain_Map_String::GetCmdByString("CMD_GAIN_PlaceSingleOrder");
===================================================================================================================
優點
1、延時加載，使用時再加載，不使用不會存在；
2、減少全局對象，以及在代碼中出現的全局對象的變量名，這種代碼耦合也很煩人；
3、容易定位到所有使用了該類的代碼中，最好是定義一個宏來得到指針，比如：GET_CLASS_A_PTR
===================================================================================================================
注意事項
1、只適合于生一個一個對象的類；