diff -r cfcbf08528c4 -r 2b40d63a9c3d qtmobility/src/messaging/maemohelpers_p.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/qtmobility/src/messaging/maemohelpers_p.h	Fri Apr 16 15:51:22 2010 +0300
@@ -0,0 +1,95 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the Qt Mobility Components.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, 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.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QMESSAGINGMAEMOHELPERPRIVATE_H
+#define QMESSAGINGMAEMOHELPERPRIVATE_H
+
+#include <qmessageglobal.h>
+#include <qmessageid.h>
+#include <qmessagesortorder.h>
+#include <qmessageaccountid.h>
+#include <qmessageaccountsortorder.h>
+#include <qmessagefolderid.h>
+#include <qmessagefoldersortorder.h>
+
+QTM_BEGIN_NAMESPACE
+
+class QMessageAccountFilter;
+class QMessageAccountSortOrder;
+class QMessageFolderFilter;
+class QMessageFolderSortOrder;
+class QMessageFilter;
+class QMessageSortOrder;
+
+class MessagingHelper
+{
+public:
+    static MessagingHelper* instance();
+
+    MessagingHelper();
+    ~MessagingHelper();
+
+    static void filterAccounts(QMessageAccountIdList& accountIds, const QMessageAccountFilter& filter);
+    static void orderAccounts(QMessageAccountIdList& accountIds, const QMessageAccountSortOrder &sortOrder);
+    static void applyOffsetAndLimitToAccountIdList(QMessageAccountIdList& accountIds, int limit, int offset);
+    
+    static void filterFolders(QMessageFolderIdList& folderIds, const QMessageFolderFilter& filter);
+    static void orderFolders(QMessageFolderIdList& folderIds,  const QMessageFolderSortOrder &sortOrder);
+    static void applyOffsetAndLimitToFolderIdList(QMessageFolderIdList& folderIds, int limit, int offset);
+
+    static void filterMessages(QMessageIdList& messageIds, const QMessageFilter& filter);
+    static void orderMessages(QMessageIdList& messageIds,  const QMessageSortOrder &sortOrder);
+    static void applyOffsetAndLimitToMessageIdList(QMessageIdList& messageIds, int limit, int offset);
+
+private:
+   static bool accountLessThan(const QMessageAccountId accountId1, const QMessageAccountId accountId2);
+   static bool folderLessThan(const QMessageFolderId folderId1, const QMessageFolderId folderId2);
+   static bool messageLessThan(const QMessageId messageId1, const QMessageId messageId2);
+
+private:
+    QMessageAccountSortOrder* m_AccountSortOrder;
+    QMessageFolderSortOrder* m_FolderSortOrder;
+    QMessageSortOrder* m_MessageSortOrder;
+};
+
+QTM_END_NAMESPACE
+
+#endif // QMESSAGINGMAEMOHELPERPRIVATE_H