在下面的示例中,我想在每个TradingStrategy(1-N).cpp文件中创建本地覆盖。有人能告诉我用C++实现这个最直接/最标准的方法吗?如何实现类变种虚拟函数覆盖
谢谢, 迈克
// TradingSide.h file
class BuySide: public CTradingSide{
public:
BuySide(CBMTTradingStrategy *p_Strategy, bool p_buySellSide, u32 p_spotInstIndex, u32 p_futInstIndex);
~BuySide();
virtual void onQuoteBuyExit(u32 p_instIndex);
virtual void onQuoteBuyEntry(u32 p_instIndex);
virtual void onFIXBuyEntry(u32 p_orderIndex, bmt_eng_events_t p_orderEvent);
virtual void onFIXBuyExit(u32 p_orderIndex, bmt_eng_events_t p_orderEvent);
virtual inline bool isBuyEntryCriteriaSatisfied(bmt_price_t &p_spotCash, u32 &p_buySpotQty );
};
class SellSide: public CTradingSide{
public:
SellSide(CBMTTradingStrategy *p_Strategy, bool p_buySellSide, u32 p_spotInstIndex, u32 p_futInstIndex);
~SellSide();
virtual void onQuoteSellExit(u32 p_instIndex);
virtual void onQuoteSellEntry(u32 p_instIndex);
virtual void onFIXSellEntry(u32 p_orderIndex, bmt_eng_events_t p_orderEvent);
virtual void onFIXSellExit(u32 p_orderIndex, bmt_eng_events_t p_orderEvent);
virtual inline bool isSellEntryCriteriaSatisfied(bmt_price_t &p_spotCash, u32 &p_sellSpotQty );
};
// TradingStrategy1.h file
class Trading1Class: public ParentClass{
...
SellSide *mySellSide;
BuySide *myBuySide;
}
// TradingStrategy1.cpp file
Trading1Class::BuySide::onQuoteBuyExit(u32 p_instIndex)
{
...
}
// TradingStrategy2.h file
class Trading2Class: public ParentClass{
...
SellSide *mySellSide;
BuySide *myBuySide;
}
// TradingStrategy2.cpp file
Trading1Class::BuySide::onQuoteBuyExit(u32 p_instIndex)
{
...
}
执行什么?如何编写执行交易交易的功能? –
您可以在每个Trading(1-n)类中创建嵌套类,并且可以扩展BuySide/SellSide。 I.e:Trading1Class:public ParentClass {... class MySellSide:public SellSide {onQuoteBuyExit(u32 p_instIndex){...}}; }; –
没有“局部重写”这样的东西,你不能为同一个方法编写不同的主体,但是在重新设计之后,它应该有可能实现你的目标(我认为虚拟方法将是最合适的)。 – Inspired