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/****************************************************************************
**
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/
**
** This file is part of the QtAddOn.JsonDb module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** This file may be used under the terms of the GNU Lesser General Public
** License version 2.1 as published by the Free Software Foundation and
** appearing in the file LICENSE.LGPL included in the packaging of this
** file. Please review the following information to ensure the GNU Lesser
** General Public License version 2.1 requirements will be met:
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU General
** Public License version 3.0 as published by the Free Software Foundation
** and appearing in the file LICENSE.GPL included in the packaging of this
** file. Please review the following information to ensure the GNU General
** Public License version 3.0 requirements will be met:
** http://www.gnu.org/copyleft/gpl.html.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef JSONDB_REDUCE_DEFINITION_H
#define JSONDB_REDUCE_DEFINITION_H
#include <QJSEngine>
#include <QStringList>
#include "jsondbpartitionglobal.h"
#include <qjsonarray.h>
#include <qjsonobject.h>
#include <qjsonvalue.h>
#include <jsondbobject.h>
#include <jsondbpartition.h>
QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE_JSONDB_PARTITION
class JsonDbOwner;
class JsonDbJoinProxy;
class JsonDbMapProxy;
class JsonDbPartition;
class JsonDbObjectTable;
class JsonDbReduceDefinition : public QObject
{
Q_OBJECT
public:
JsonDbReduceDefinition(const JsonDbOwner *mOwner, JsonDbPartition *partition, QJsonObject reduceDefinition, QObject *parent = 0);
QString uuid() const { return mUuid; }
QString targetType() const { return mTargetType; }
QString sourceType() const { return mSourceType; }
QString sourceKeyName() const { return mSourceKeyName; }
QString targetKeyName() const { return mTargetKeyName; }
QString targetValueName() const { return mTargetValueName; }
// sourceKeyName split on .
QStringList sourceKeyNameList() const { return mSourceKeyNameList; }
bool isActive() const;
QJsonObject definition() const { return mDefinition; }
const JsonDbOwner *owner() const { return mOwner; }
static void definitionRemoved(JsonDbPartition *partition, JsonDbObjectTable *table, const QString targetType, const QString &definitionUuid);
void definitionCreated();
void initIndexes();
void updateObject(JsonDbObject before, JsonDbObject after, JsonDbUpdateList *changeList = 0);
void setError(const QString &errorMsg);
static bool validateDefinition(const JsonDbObject &reduce, JsonDbPartition *partition, QString &message);
public slots:
void initScriptEngine();
void releaseScriptEngine();
private:
enum FunctionNumber {
Add = 0,
Subtract = 1,
SourceKeyValue = 2
};
static bool compileFunctions(QJSEngine *scriptEngine, QJsonObject definition, JsonDbJoinProxy *joinProxy, QVector<QJSValue> &mFunctions, QString &message);
QJsonValue sourceKeyValue(const JsonDbObject &object);
QJsonValue addObject(FunctionNumber fn, const QJsonValue &keyValue, QJsonValue previousResult, JsonDbObject object);
private:
const JsonDbOwner *mOwner;
JsonDbPartition *mPartition;
QJsonObject mDefinition;
QPointer<QJSEngine> mScriptEngine;
QVector<QJSValue> mFunctions;
QString mUuid;
QString mTargetType;
JsonDbObjectTable *mTargetTable;
QString mSourceType;
QString mTargetKeyName;
QString mTargetValueName;
QString mSourceKeyName;
// mSourceKeyName split on .
QStringList mSourceKeyNameList;
};
QT_END_NAMESPACE_JSONDB_PARTITION
QT_END_HEADER
#endif // JSONDB_REDUCE_DEFINITION_H
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