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/*
* Copyright (C) 2014 Aaron Seigo <aseigo@kde.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) version 3, or any
* later version accepted by the membership of KDE e.V. (or its
* successor approved by the membership of KDE e.V.), which shall
* act as a proxy defined in Section 6 of version 3 of the license.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include "datasetdefinition.h"
#include "hawd_export.h"
#include "state.h"
#include "common/storage.h"
#include <QHash>
#include <QVariant>
#include <QDateTime>
namespace HAWD
{
class HAWD_EXPORT Dataset
{
public:
class HAWD_EXPORT Row
{
public:
enum StandardCols {
Annotation,
CommitHash,
Timestamp,
All = Annotation | CommitHash | Timestamp
};
Row(const Row &other);
Row &operator=(const Row &rhs);
void setValue(const QString &column, const QVariant &value);
QVariant value(const QString &column) const;
QString commitHash() const;
QDateTime timestamp() const;
void annotate(const QString ¬e);
void setCommitHash(const QString &hash);
void setTimestamp(const QDateTime &dt);
qint64 key() const;
QByteArray toBinary() const;
QString toString(const QStringList &cols = QStringList(), int standardCols = All, const QString &seperator = "|") const;
private:
Row();
Row(const Dataset &dataset, qint64 key = 0);
void fromBinary(QByteArray binary);
qint64 m_key;
QList<QPair<QString, DataDefinition> > m_columns;
QHash<QString, QVariant> m_data;
QString m_annotation;
QString m_commitHash;
QDateTime m_timeStamp;
const Dataset *m_dataset;
friend class Dataset;
};
Dataset(const QString &name, const State &state);
~Dataset();
bool isValid() const;
const DatasetDefinition &definition() const;
QString tableHeaders(const QStringList &cols = QStringList(), int standardCols = Row::All, const QString &seperator = "|") const;
qint64 insertRow(const Row &row);
void removeRow(const Row &row);
void eachRow(const std::function<void(const Row &row)> &resultHandler);
Row row(qint64 key = 0);
Row lastRow();
private:
DatasetDefinition m_definition;
Sink::Storage::DataStore m_storage;
Sink::Storage::DataStore::Transaction m_transaction;
QString m_commitHash;
};
} // namespace HAWD
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