Order Executor

The IOrderExecutor is the central interface for submitting and managing orders in the Flox framework.
It acts as the bridge between the strategy layer and the actual execution venue or simulator.

Responsibilities

• Accepts and submits orders
• Notifies listeners when orders are filled or rejected
• Optionally tracks execution metrics via a tracker
• Integrates into the system lifecycle via ISubsystem

Class Definition

class IOrderExecutor : public ISubsystem {
public:
  virtual ~IOrderExecutor() = default;

  virtual void submitOrder(const Order &order) = 0;

  void setExecutionTracker(IExecutionTracker *tracker);
  void setListener(IOrderExecutionListener *listener);

protected:
  IExecutionTracker *getExecutionTracker() const;
  IOrderExecutionListener *getListener() const;
};

Usage

• Strategies call submitOrder(...) to execute trades.
• setListener(...) must be used to register a consumer for order events.
• Optionally, setExecutionTracker(...) can be used to collect latency metrics.

Notes

• Execution logic is implemented in derived classes (e.g., mock or real-time executors).
• Listener and tracker pointers are nullable; behavior should be guarded accordingly.