diff -r c743ef5928ba -r f9ce957a272c homescreenapp/hsdomainmodel/inc/hsdatabase.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/homescreenapp/hsdomainmodel/inc/hsdatabase.h	Fri Mar 19 09:27:44 2010 +0200
@@ -0,0 +1,93 @@
+/*
+* 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:  Implementation for SQLite content store.
+*
+*/
+
+#ifndef HSDATABASE_H
+#define HSDATABASE_H
+
+#include <QScopedPointer>
+#include <QtSql>
+#include "hsdomainmodel_global.h"
+#include "hstest_global.h"
+
+HOMESCREEN_TEST_CLASS(TestRuntimeServices)
+HOMESCREEN_TEST_CLASS(HomeScreenStatePluginTest)
+
+class HsSceneData;
+class HsPageData;
+class HsWidgetData;
+class HsWidgetPresentationData;
+
+class HSDOMAINMODEL_EXPORT HsDatabase : public QObject
+{
+    Q_OBJECT
+
+public:
+    static void setDatabaseName(const QString& dbName);
+    static HsDatabase *instance();
+    ~HsDatabase();
+
+    bool transaction();
+    bool rollback();
+    bool commit();
+
+    bool scene(HsSceneData &scene);
+    bool updateScene(const HsSceneData &scene);
+    
+    bool pages(QList<HsPageData> &pages);
+    bool page(int id, HsPageData &page, bool getChildren = true);
+    bool insertPage(HsPageData &page);
+    bool updatePage(const HsPageData &page, bool updateChildren = true);
+    bool deletePage(int id);
+
+    bool widget(int id, HsWidgetData &widget, bool getChildren = true);
+    bool insertWidget(HsWidgetData &widget);
+    bool insertWidget(const HsWidgetData &widget,int &databaseId);
+    bool updateWidget(const HsWidgetData &widget, bool updateChildren = true);
+    bool deleteWidget(int id);
+    bool deleteWidgets(const QString &uri);
+
+    bool widgetPresentation(int widgetId, const QString &key, HsWidgetPresentationData &presentation);
+    bool insertWidgetPresentation(HsWidgetPresentationData &presentation);
+    bool updateWidgetPresentation(const HsWidgetPresentationData &presentation);
+    bool deleteWidgetPresentation(int id);
+
+    bool setWidgetPreferenceForKey(int widgetId, const QString &key, const QString &value);
+    bool widgetPreferenceForKey(int widgetId, const QString &key, QString &value);
+    bool setWidgetPreferences(int widgetId, const QVariantMap &preferences);
+    bool widgetPreferences(int widgetId, QVariantMap &preferences);
+    bool widgetIds(const QString &uri, QList<int>& ids);
+
+private:
+    HsDatabase();
+    bool openDatabase(const QString &databaseName);
+    Q_DISABLE_COPY(HsDatabase)
+
+    bool parsePage(const QSqlQuery &query, bool getChildren, HsPageData &page);
+    bool parseWidget(const QSqlQuery &query, bool getChildren, HsWidgetData &widget);
+    bool parseWidgetPresentation(const QSqlQuery &query, HsWidgetPresentationData &presentation);
+
+    QVariant columnValue(const QSqlQuery &query, const QString &columnName) const;
+    QSqlDatabase database() const;
+
+private:
+    static QScopedPointer<HsDatabase> mInstance;
+    static QString  mDatabaseName;
+    HOMESCREEN_TEST_FRIEND_CLASS(TestRuntimeServices)
+    HOMESCREEN_TEST_FRIEND_CLASS(HomeScreenStatePluginTest)
+};
+
+#endif // HSDATABASE_H