public:

virtual ~EventHandler() {}

virtual void processEvent(const Event& event, Session* sessionPtr) {}

// An implementation of processEvent should process the specified

// 'event' which originates from the specified 'session'.

//

// If the application wishes to process the event further

// after returning from the processEvents() call it must make

// a copy of the Event to ensure the underlying data is not

// freed.

// Note: no exceptions are thrown