ordering.hpp

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#ifndef IROHA_SHARED_MODEL_ORDERING_HPP
#define IROHA_SHARED_MODEL_ORDERING_HPP

#include "interfaces/base/model_primitive.hpp"
#include "interfaces/common_objects/types.hpp"

namespace shared_model {
  namespace interface {

    class Ordering : public ModelPrimitive<Ordering> {
     public:
      enum struct Field : size_t {
        kCreatedTime = 0,
        kPosition,
        //--------------
        kMaxValueCount,
        kUnknownValue = kMaxValueCount
      };

      enum struct Direction : size_t {
        kAscending = 0,
        kDescending,
        //--------------
        kMaxValueCount,
        kUnknownValue = kMaxValueCount
      };

      struct OrderingEntry {
        Field field;
        Direction direction;
      };

      virtual bool append(Field field, Direction direction) = 0;

      virtual void reset() = 0;

      virtual void get(OrderingEntry const *&orderingEntry,
                       size_t &count) const = 0;

      std::string toString() const override;
      bool operator==(const ModelType &rhs) const override;
    };

  }  // namespace interface
}  // namespace shared_model

#endif  // IROHA_SHARED_MODEL_ORDERING_HPP