AtomProvider.h

Go to the documentation of this file.

#include <utility>
 
//
// Created by Nico Schäfer on 11/13/17.
//
 
#ifndef JODA_ATOMPROVIDER_H
#define JODA_ATOMPROVIDER_H
 
#define JODA_TRUE_STRING "true"
#define JODA_FALSE_STRING "false"
 
#include <rapidjson/fwd.h>
 
#include "IValueProvider.h"
namespace joda::query {
 
template <typename T>
class AtomProvider : public joda::query::IValueProvider {
 public:
  AtomProvider(T val)
      : val(std::move(val)){
 
        };
 
  std::unique_ptr<IValueProvider> duplicate() const override {
    return std::make_unique<AtomProvider<T>>(val);
  };
  std::string toString() const override;
 
  bool isConst() const override { return true; };
  RJValue getAtomValue(const RapidJsonDocument &json,
                       RJMemoryPoolAlloc &alloc) const override;
 
  const RJValue *getValue(const RapidJsonDocument &json,
                          RJMemoryPoolAlloc &alloc) const override {
    assert(!isAtom() && "Did not check for atom before calling");
    return nullptr;
  };
 
  std::string getName() const override;
  joda::query::IValueType getReturnType() const override;
 
 protected:
  T val;
};
 
template class AtomProvider<double>;
 
typedef AtomProvider<double> DoubleProvider;
 
template class AtomProvider<int64_t>;
 
typedef AtomProvider<int64_t> Int64Provider;
 
template class AtomProvider<u_int64_t>;
 
typedef AtomProvider<u_int64_t> UInt64Provider;
 
/*
 * Bool
 */
 
template class AtomProvider<bool>;
 
typedef AtomProvider<bool> BoolProvider;
 
template class AtomProvider<std::string>;
 
typedef AtomProvider<std::string> StringProvider;
 
template <>
std::string AtomProvider<std::string>::toString() const;
 
template <>
std::string AtomProvider<u_int64_t>::toString() const;
 
template <>
std::string AtomProvider<int64_t>::toString() const;
 
template <>
std::string AtomProvider<double>::toString() const;
 
template <>
std::string AtomProvider<bool>::toString() const;
 
template <typename T>
inline std::string AtomProvider<T>::getName() const {
  return toString();
};
 
}  // namespace joda::query
#endif  // JODA_ATOMPROVIDER_H