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diff --git a/src/libs/modelinglib/qmt/model/mdependency.h b/src/libs/modelinglib/qmt/model/mdependency.h
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+/***************************************************************************
+**
+** Copyright (C) 2015 Jochen Becher
+** Contact: http://www.qt.io/licensing
+**
+** This file is part of Qt Creator.
+**
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company.  For licensing terms and
+** conditions see http://www.qt.io/terms-conditions.  For further information
+** use the contact form at http://www.qt.io/contact-us.
+**
+** 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 or version 3 as published by the Free
+** Software Foundation and appearing in the file LICENSE.LGPLv21 and
+** LICENSE.LGPLv3 included in the packaging of this file.  Please review the
+** following information to ensure the GNU Lesser General Public License
+** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
+** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, The Qt Company gives you certain additional
+** rights.  These rights are described in The Qt Company LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+****************************************************************************/
+
+#ifndef QMT_MDEPENDENCY_H
+#define QMT_MDEPENDENCY_H
+
+#include "mrelation.h"
+
+namespace qmt {
+
+class MObject;
+
+class QMT_EXPORT MDependency : public MRelation
+{
+public:
+    enum Direction {
+        AToB,
+        BToA,
+        Bidirectional
+    };
+
+    MDependency();
+    MDependency(const MDependency &rhs);
+    ~MDependency() override;
+
+    MDependency &operator=(const MDependency &rhs);
+
+    Direction direction() const { return m_direction; }
+    void setDirection(Direction direction);
+    Uid source() const;
+    void setSource(const Uid &source);
+    Uid target() const;
+    void setTarget(const Uid &target);
+
+    void accept(MVisitor *visitor) override;
+    void accept(MConstVisitor *visitor) const override;
+
+private:
+    Direction m_direction;
+};
+
+} // namespace qmt
+
+#endif // QMT_MDEPENDENCY_H