OnixS Eurex ETI Handler C++ library  9.11.0
API documentation
WarningListener.h
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19 
20 #pragma once
21 
22 #include "OnixS/Eurex/Trading/Export.h"
23 
24 #include <string>
25 
26 namespace OnixS {
27 namespace Eurex {
28 namespace Trading {
29 
30 /// Defines an interface through which the Handler notifies subscribers
31 /// about warnings occurred while processing messages.
33 {
34 public:
35  /// Implement this member to get notified about warnings.
36  /// \param description supplies notes on occurred error.
37  virtual void onWarning (const std::string& description) = 0;
38 
39 protected:
40  /// Class provides an interface for handling trading system events.
41  /// It doesn't provide an interface for instance deletion. However,
42  /// since C++ doesn't have pure interface concept, destructor will be
43  /// generated anyway. We can only control proper use of it. For this
44  /// reason we hide from public use and make it available for descendants.
45  virtual ~WarningListener() {}
46 };
47 
48 }
49 }
50 }
virtual void onWarning(const std::string &description)=0