memgraph/include/storage/label/label_collection.hpp
Kruno Tomola Fabro 5a42e15c4a Alpha version of label indexes.
Squashed messages from 9 commits:

9.
Properties now uses PropertyFamily and contained classes.
Fetching,seting,clearing properties can be done with PropertyFamilyKey or PropertyTypeKey.
Hierarchy of newly added clases is:
Vertices -n-> PropertyFamily {name: String} <-1-n-> PropertyType {type: Property::Flags}
Edges -n-> PropertyFamily {name: String} <-1-n-> PropertyType {type: Property::Flags}

PropertyFamilyKey -> PropertyType
PropertyTypeKey -> PropertyType

PropertyType t0,t1;
let t0!=t1 be true
let t0.family==t1.family be true

then next is true
PropertyTypeKey{&t0}!=PropertyTypeKey{&t1}
PropertyFamilyKey{&t0}==PropertyFamilyKey{&t1}
PropertyFamilyKey{&t0}==PropertyTypeKey{&t1}
PropertyTypeKey{&t0}==PropertyFamilyKey{&t1}

8.
Intermedate commit.
Noticed that integration queries throw SEGFAULT.

7.
Defined interface for indexes.
Fixed three memory leaks.
Fixed integration_queries test which now passes.

6.
Commit which return Xorshift128plus to valid shape.

5.
Tmp commit.

4.
Label Index is compiling.

3.
tmp

2.
Vertex::Accessor now updates Label index.

1.
Applied changes for code review.
2016-08-18 15:34:36 +01:00

32 lines
591 B
C++

#pragma once
#include <set>
// #include "storage/label/label.hpp"
#include "utils/reference_wrapper.hpp"
class Label;
using label_ref_t = ReferenceWrapper<const Label>;
class LabelCollection
{
public:
auto begin();
auto begin() const;
auto cbegin() const;
auto end();
auto end() const;
auto cend() const;
bool add(const Label &label);
bool has(const Label &label) const;
size_t count() const;
bool remove(const Label &label);
void clear();
const std::set<label_ref_t> &operator()() const;
private:
std::set<label_ref_t> _labels;
};