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diff --git a/examples/declarative/extending/binding/happybirthdaysong.cpp b/examples/declarative/extending/binding/happybirthdaysong.cpp
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+++ b/examples/declarative/extending/binding/happybirthdaysong.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+#include "happybirthdaysong.h"
+#include <QTimer>
+
+HappyBirthdaySong::HappyBirthdaySong(QObject *parent)
+: QObject(parent), m_line(-1)
+{
+    setName(QString());
+    QTimer *timer = new QTimer(this);
+    QObject::connect(timer, SIGNAL(timeout()), this, SLOT(advance()));
+    timer->start(1000);
+}
+
+void HappyBirthdaySong::setTarget(const QDeclarativeProperty &p)
+{
+    m_target = p;
+}
+
+QString HappyBirthdaySong::name() const
+{
+    return m_name;
+}
+
+void HappyBirthdaySong::setName(const QString &name)
+{
+    if (m_name == name)
+        return;
+
+    m_name = name;
+
+    m_lyrics.clear();
+    m_lyrics << "Happy birthday to you,";
+    m_lyrics << "Happy birthday to you,";
+    m_lyrics << "Happy birthday dear " + m_name + ",";
+    m_lyrics << "Happy birthday to you!";
+    m_lyrics << "";
+    
+    emit nameChanged();
+}
+    
+void HappyBirthdaySong::advance()
+{
+    m_line = (m_line + 1) % m_lyrics.count();
+
+    m_target.write(m_lyrics.at(m_line));
+}
+