memgraph/include/storage/label/label.hpp
2016-09-08 13:25:52 +01:00

53 lines
1.3 KiB
C++

#pragma once
#include <ostream>
#include <stdint.h>
#include "storage/indexes/impl/nonunique_unordered_index.hpp"
#include "storage/type_group_vertex.hpp"
#include "storage/vertex.hpp"
#include "storage/vertex_accessor.hpp"
#include "utils/char_str.hpp"
#include "utils/reference_wrapper.hpp"
#include "utils/total_ordering.hpp"
using LabelIndexRecord = IndexRecord<TypeGroupVertex, std::nullptr_t>;
class Label : public TotalOrdering<Label>, TotalOrdering<CharStr, Label>
{
public:
using label_index_t =
NonUniqueUnorderedIndex<TypeGroupVertex, std::nullptr_t>;
Label() = delete;
Label(const char *name);
Label(const Label &) = delete;
Label(Label &&other) = default;
friend bool operator<(const Label &lhs, const Label &rhs);
friend bool operator==(const Label &lhs, const Label &rhs);
friend bool operator<(const CharStr &lhs, const Label &rhs);
friend bool operator==(const CharStr &lhs, const Label &rhs);
friend std::ostream &operator<<(std::ostream &stream, const Label &label);
operator const std::string &() const;
std::string const &str() const { return name; }
CharStr char_str() const { return CharStr(name.c_str()); }
label_index_t &index() const;
private:
std::unique_ptr<label_index_t> index_v;
std::string name;
};
using label_ref_t = ReferenceWrapper<const Label>;