memgraph/include/utils/void.hpp

#pragma once

#include "utils/total_ordering.hpp"

// Type which represents nothing.
class Void : public TotalOrdering<Void>
{
public:
    friend bool operator<(const Void &lhs, const Void &rhs) { return false; }

    friend bool operator==(const Void &lhs, const Void &rhs) { return true; }
};

static Void _void = {};
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 22:34:36 +08:00			`#pragma once`

			`#include "utils/total_ordering.hpp"`

Added documentation. Fixed test for index. 2016-09-19 06:22:36 +08:00			`// Type which represents nothing.`
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 22:34:36 +08:00			`class Void : public TotalOrdering<Void>`
			`{`
tmp commit tmp commit tmp commit v2 Finished reimplementation of propertys. They now can be placed in a holder with different source of type information. Tmp commit 2016-09-05 17:02:48 +08:00			`public:`
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 22:34:36 +08:00			`friend bool operator<(const Void &lhs, const Void &rhs) { return false; }`

			`friend bool operator==(const Void &lhs, const Void &rhs) { return true; }`
			`};`
Finished creating part of snapshot. 2016-09-08 20:25:52 +08:00
			`static Void _void = {};`