Differential D19556 Diff 53270 src/core/attributestorage_p.h

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src/core/attributestorage_p.h

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1		/*
2		Copyright (c) 2019 David Faure <faure@kde.org>
3
4		This library is free software; you can redistribute it and/or modify it
5		under the terms of the GNU Library General Public License as published by
6		the Free Software Foundation; either version 2 of the License, or (at your
7		option) any later version.
8
9		This library is distributed in the hope that it will be useful, but WITHOUT
10		ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11		FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public
12		License for more details.
13
14		You should have received a copy of the GNU Library General Public License
15		along with this library; see the file COPYING.LIB. If not, write to the
16		Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
17		02110-1301, USA.
18		*/
19
20		#ifndef ATTRIBUTESTORAGE_P_H
21		#define ATTRIBUTESTORAGE_P_H
22
23		#include <set>
24		#include <vector>
25		#include <QHash>
26		#include <QSet>
27		#include "attribute.h"
28
29		namespace Akonadi {
30
31		/**
32		* The AttributeStorage class is used by Collection, Item, Tag...
33		* to store a set of attributes, remembering modifications.
34		* I.e. it knows which attributes have been added or removed
35		* compared to the initial set (e.g. fetched from server).
36		*/
37		class AttributeStorage
38		{
39		public:
40		AttributeStorage();
41		AttributeStorage(const AttributeStorage &other);
42		AttributeStorage& operator=(const AttributeStorage &other);
43		void swap(AttributeStorage &other) noexcept;
44		~AttributeStorage();
45
46		void addAttribute(Attribute *attr);
47		void removeAttribute(const QByteArray &type);
48		bool hasAttribute(const QByteArray &type) const;
49		Attribute::List attributes() const;
50		void clearAttributes();
51		Attribute *attribute(const QByteArray &type) const;
52		void markAttributeModified(const QByteArray &type);
53		void resetChangeLog();
54
55		QSet<QByteArray> deletedAttributes() const;
56		bool hasModifiedAttributes() const;
57		std::vector<Attribute *> modifiedAttributes() const;
58
59		private:
60		QHash<QByteArray, Attribute *> mAttributes;
61		std::set<QByteArray> mModifiedAttributes;
62		QSet<QByteArray> mDeletedAttributes;
	dvratilUnsubmitted Not Done What is the benefit of `std::set<T>` over a `QSet<T>` here? I don't mind using it, I'm just curious why you preferred it over `QSet`. dvratil: What is the benefit of `std::set<T>` over a `QSet<T>` here? I don't mind using it, I'm just…
	dfaureAuthorUnsubmitted Not Done A hash table for just a few elements is overkill (memory-wise). dfaure: A hash table for just a few elements is overkill (memory-wise).
63		};
64
65		}
66
67		#endif // ATTRIBUTESTORAGE_P_H