NullProvider.h

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//
// Created by Nico on 08/05/2019.
//
 
#ifndef JODA_NULLPROVIDER_H
#define JODA_NULLPROVIDER_H
 
#include "IValueProvider.h"
 
namespace joda::query {
class NullProvider : public joda::query::IValueProvider {
 public:
  NullProvider();
  std::unique_ptr<IValueProvider> duplicate() const override;
 
  bool isConst() const override;
  bool isAtom() const override;
 
  RJValue getAtomValue(const RapidJsonDocument &json,
                       RJMemoryPoolAlloc &alloc) const override;
  const RJValue *getValue(const RapidJsonDocument &json,
                          RJMemoryPoolAlloc &alloc) const override;
 
  std::string getName() const override;
  IValueType getReturnType() const override;
};
}  // namespace joda::query
 
#endif  // JODA_NULLPROVIDER_H