memgraph/include/storage/model/properties/property.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

55 lines
1.0 KiB
C++

#pragma once
#include <cassert>
#include <memory>
#include <ostream>
#include <string>
#include <vector>
#include "storage/model/properties/flags.hpp"
#include "utils/underlying_cast.hpp"
class Null;
class Property
{
public:
using sptr = std::shared_ptr<Property>;
static const Null Null;
Property(Flags flags);
virtual bool operator==(const Property &other) const = 0;
bool operator!=(const Property &other) const;
template <class T>
bool is() const
{
return underlying_cast(flags) & underlying_cast(T::type);
}
template <class T>
T &as()
{
assert(this->is<T>());
return *static_cast<T *>(this);
}
template <class T>
const T &as() const
{
assert(this->is<T>());
return *static_cast<const T *>(this);
}
virtual std::ostream &print(std::ostream &stream) const = 0;
friend std::ostream &operator<<(std::ostream &stream, const Property &prop);
const Flags flags;
};
using properties_t = std::vector<Property::sptr>;