47 lines
1.1 KiB
C++
47 lines
1.1 KiB
C++
|
#pragma once
|
||
|
|
|
||
|
|
#include "mvcc/version_list.hpp"
|
||
|
|
#include "utils/total_ordering.hpp"
|
||
|
|
|
||
|
|
template <class T>
|
||
|
|
class IndexRecord : TotalOrdering<IndexRecord<T>>
|
||
|
|
{
|
||
|
|
public:
|
||
|
|
using vlist_t = mvcc::VersionList<T>;
|
||
|
|
|
||
|
|
IndexRecord() = default;
|
||
|
|
|
||
|
|
IndexRecord(T *record, vlist_t *vlist) : record(record), vlist(vlist)
|
||
|
|
{
|
||
|
|
assert(record != nullptr);
|
||
|
|
assert(vlist != nullptr);
|
||
|
|
}
|
||
|
|
|
||
|
|
friend bool operator<(const IndexRecord& lhs, const IndexRecord& rhs)
|
||
|
|
{
|
||
|
|
return lhs.record < rhs.record;
|
||
|
|
}
|
||
|
|
|
||
|
|
friend bool operator==(const IndexRecord& lhs, const IndexRecord& rhs)
|
||
|
|
{
|
||
|
|
return lhs.record == rhs.record;
|
||
|
|
}
|
||
|
|
|
||
|
|
bool empty() const { return record == nullptr; }
|
||
|
|
|
||
|
|
// const typename T::Accessor get()
|
||
|
|
// {
|
||
|
|
// // TODO: if somebody wants to read T content
|
||
|
|
// // const T::Accessor has to be returned from here
|
||
|
|
// // the problem is that here we don't have pointer to store
|
||
|
|
// // TODO: figure it out
|
||
|
|
// }
|
||
|
|
|
||
|
|
// private:
|
||
|
|
T *const record{nullptr};
|
||
|
|
vlist_t *const vlist{nullptr};
|
||
|
|
};
|
||
|
|
|
||
|
|
using VertexIndexRecord = IndexRecord<Vertex>;
|
||
|
|
using EdgeIndexRecord = IndexRecord<Edge>;
|