diff -r f00a6757af32 -r 5f0182e07bfb homescreenapp/hsdomainmodel/inc/hsdatabase.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/homescreenapp/hsdomainmodel/inc/hsdatabase.h	Tue Aug 31 15:06:34 2010 +0300
@@ -0,0 +1,103 @@
+/*
+* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:
+*
+*/
+
+#ifndef HSDATABASE_H
+#define HSDATABASE_H
+
+#include <QObject>
+#include <QVariantHash>
+
+#include "hsdomainmodel_global.h"
+#include "hstest_global.h"
+
+HOMESCREEN_TEST_CLASS(TestHsDomainModel)
+
+class HsSceneData;
+class HsPageData;
+class HsWidgetData;
+class HsWidgetPresentationData;
+
+class HSDOMAINMODEL_EXPORT HsDatabase : public QObject
+{
+    Q_OBJECT
+    Q_PROPERTY(QString connectionName READ connectionName WRITE setConnectionName)
+    Q_PROPERTY(QString databaseName READ databaseName WRITE setDatabaseName)
+    
+public:
+    HsDatabase(QObject *parent = 0);
+    ~HsDatabase();
+
+    void setConnectionName(const QString &name);
+    QString connectionName() const;    
+    void setDatabaseName(const QString &name);
+    QString databaseName() const;
+
+    bool open();
+    void close();
+
+    bool transaction();
+    bool rollback();
+    bool commit();
+
+    bool scene(HsSceneData &data);
+    
+    bool pages(QList<HsPageData> &data);
+    bool page(HsPageData &data);
+    bool insertPage(HsPageData &data);
+    bool updatePage(const HsPageData &data);
+    bool deletePage(int id);
+    
+    bool widgets(int pageId, QList<HsWidgetData> &data);
+    bool widgets(const QString &uri, QList<HsWidgetData> &data);
+    bool widgets(const QString &uri, const QVariantHash &preferences, int &count);
+    bool widget(HsWidgetData &data);
+    bool insertWidget(HsWidgetData &data);
+    bool updateWidget(const HsWidgetData &data);
+    bool deleteWidget(int id);
+    bool deleteWidgets(const QString &uri);
+
+    bool widgetPresentation(HsWidgetPresentationData &data);
+    bool setWidgetPresentation(const HsWidgetPresentationData &data);
+    bool deleteWidgetPresentation(int widgetId, Qt::Orientation orientation);
+
+    bool widgetPreferences(int widgetId, QVariantHash &data);
+    bool widgetPreference(int widgetId, const QString &key, QVariant &value);
+    bool setWidgetPreferences(int widgetId, const QVariantHash &data);
+
+    bool configuration(QVariantHash &configuration);
+
+    bool updateWidgetZValues(const QHash<int, qreal> &data, Qt::Orientation orientation);
+
+public:
+    static void setInstance(HsDatabase *instance);
+    static HsDatabase *instance();
+    static HsDatabase *takeInstance();
+
+private:    
+    Q_DISABLE_COPY(HsDatabase)
+    bool checkConnection() const;
+    bool matchWidgetPreferences(const QVariantHash &preferences, const QMultiMap<QString, QString>& storedPreferences);
+
+private:
+    QString mConnectionName;
+    QString mDatabaseName;
+
+    static HsDatabase *mInstance;
+    HOMESCREEN_TEST_FRIEND_CLASS(TestHsDomainModel)
+};
+
+#endif // HSDATABASE_H