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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_MAP_DEFINITION_H
+#define JSONDB_MAP_DEFINITION_H
+
+#include <QJSEngine>
+#include <QStringList>
+
+#include "jsondbpartition.h"
+#include "jsondbpartitionglobal.h"
+
+#include <qjsonarray.h>
+#include <qjsonobject.h>
+#include <qjsonvalue.h>
+
+#include <jsondbobject.h>
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE_JSONDB_PARTITION
+
+class JsonDbOwner;
+class JsonDbJoinProxy;
+class JsonDbMapProxy;
+class JsonDbObjectTable;
+
+class JsonDbMapDefinition : public QObject
+{
+    Q_OBJECT
+public:
+    JsonDbMapDefinition(const JsonDbOwner *mOwner, JsonDbPartition *partition, QJsonObject mapDefinition, QObject *parent = 0);
+    QString uuid() const { return mUuid; }
+    QString targetType() const { return mTargetType; }
+    const QStringList &sourceTypes() const { return mSourceTypes; }
+    QString partitionName() const { return mPartition->name(); }
+    bool isActive() const;
+    QJsonObject definition() const { return mDefinition; }
+    QJSValue mapFunction(const QString &sourceType) const;
+    JsonDbObjectTable *sourceTable(const QString &sourceType) const { return mSourceTables.value(sourceType); }
+    const JsonDbOwner *owner() const { return mOwner; }
+
+    static void definitionRemoved(JsonDbPartition *partition, JsonDbObjectTable *table, const QString targetType, const QString &definitionUuid);
+    void definitionCreated();
+
+    void initScriptEngine();
+    void releaseScriptEngine();
+    void initIndexes();
+
+    void setError(const QString &errorMsg);
+    void updateObject(const JsonDbObject &before, const JsonDbObject &after, JsonDbUpdateList *changeList = 0);
+    static bool validateDefinition(const JsonDbObject &map, JsonDbPartition *partition, QString &message);
+    static bool compileMapFunctions(QJSEngine *scriptEngine, QJsonObject definition, JsonDbJoinProxy *joinProxy, QMap<QString,QJSValue> &mapFunctions, QString &message);
+
+public slots:
+    void viewObjectEmitted(const QJSValue &value);
+    void lookupRequested(const QJSValue &spec, const QJSValue &context);
+
+private:
+    void mapObject(JsonDbObject object);
+    void unmapObject(const JsonDbObject &object);
+
+private:
+    JsonDbPartition *mPartition;
+    const JsonDbOwner *mOwner;
+    QJsonObject     mDefinition;
+    QString         mTargetKeyName;
+    QJSEngine     *mScriptEngine;
+    JsonDbMapProxy *mMapProxy; // to be removed when old map/lookup converted to join/lookup
+    JsonDbJoinProxy *mJoinProxy;
+    QMap<QString,QJSValue> mMapFunctions;
+    QString        mUuid;
+    QString        mMapId; // uuid with special characters converted to '$'
+    QString        mTargetType;
+    QStringList    mSourceTypes;
+    JsonDbObjectTable   *mTargetTable;
+    QMap<QString,JsonDbObjectTable *> mSourceTables;
+    QStringList    mSourceUuids; // a set of uuids with sorted elements
+    QHash<QString,JsonDbObject> mEmittedObjects;
+};
+
+QT_END_NAMESPACE_JSONDB_PARTITION
+
+QT_END_HEADER
+
+#endif // JSONDB_MAP_DEFINITION_H