/**************************************************************************** ** ** Copyright (C) 2018 The Qt Company Ltd. ** Contact: http://www.qt.io/licensing/ ** ** This file is part of the Qt OPC UA module. ** ** $QT_BEGIN_LICENSE:LGPL3$ ** 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 3 as published by the Free Software ** Foundation and appearing in the file LICENSE.LGPLv3 included in the ** packaging of this file. Please review the following information to ** ensure the GNU Lesser General Public License version 3 requirements ** will be met: https://www.gnu.org/licenses/lgpl.html. ** ** GNU General Public License Usage ** Alternatively, this file may be used under the terms of the GNU ** General Public License version 2.0 or later as published by the Free ** Software Foundation and appearing in the file LICENSE.GPL included in ** the packaging of this file. Please review the following information to ** ensure the GNU General Public License version 2.0 requirements will be ** met: http://www.gnu.org/licenses/gpl-2.0.html. ** ** $QT_END_LICENSE$ ** ****************************************************************************/ #pragma once #include "qopcuatype.h" #include QT_BEGIN_NAMESPACE class OpcUaAttributeValue; class OpcUaAttributeCache : public QObject { Q_OBJECT public: explicit OpcUaAttributeCache(QObject *parent = nullptr); OpcUaAttributeValue *attribute(QOpcUa::NodeAttribute attribute); const QVariant &attributeValue(QOpcUa::NodeAttribute); public slots: void setAttributeValue(QOpcUa::NodeAttribute attribute, const QVariant &value); void invalidate(); private: QHash m_attributeCache; }; QT_END_NAMESPACE