232 lines
8.0 KiB
C++
232 lines
8.0 KiB
C++
/****************************************************************************
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**
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** https://www.qxorm.com/
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** Copyright (C) 2013 XDL Team (ic-east.com)
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**
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** This file is part of the QxOrm library
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**
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** This software is provided 'as-is', without any express or implied
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** warranty. In no event will the authors be held liable for any
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** damages arising from the use of this software
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**
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** Commercial Usage
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** Licensees holding valid commercial QxOrm licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and XDL Team
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3.0 as published by the Free Software
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** Foundation and appearing in the file 'license.gpl3.txt' included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU General Public License version 3.0 requirements will be
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** met : http://www.gnu.org/copyleft/gpl.html
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**
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** If you are unsure which license is appropriate for your use, or
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** if you have questions regarding the use of this file, please contact :
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** ic-east.com
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**
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****************************************************************************/
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#ifndef _QX_FACTORY_H_
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#define _QX_FACTORY_H_
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#ifdef _MSC_VER
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#pragma once
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#endif
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/*!
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* \file QxFactory.h
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* \author XDL Team
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* \ingroup QxFactory
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* \brief Concrete factory class to create object dynamically using the class name
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*/
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#include <QtCore/qobject.h>
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#include <QxFactory/IxFactory.h>
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#include <QxTraits/get_base_class.h>
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#include <QxTraits/get_class_name.h>
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#include <QxTraits/get_primary_key.h>
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#define QX_STR_CANNOT_INSTANTIATE_ABSTRACT_CLASS "[QxOrm] qx::QxFactory<T> ---> cannot instantiate abstract class '%s'"
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#if _QX_AUTO_REGISTER_REPOSITORY
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#define QX_AUTO_REGISTER_REPOSITORY(className, sKey) qx::register_repository<className>(sKey);
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#else // _QX_AUTO_REGISTER_REPOSITORY
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#define QX_AUTO_REGISTER_REPOSITORY(className, sKey) /* Nothing */
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#endif // _QX_AUTO_REGISTER_REPOSITORY
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namespace qx
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{
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class IxPersistable;
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template <class T>
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class QxClass;
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#ifdef _QX_ENABLE_QT_NETWORK
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namespace service
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{
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class IxService;
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class IxParameter;
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} // namespace service
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#endif // _QX_ENABLE_QT_NETWORK
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#if _QX_AUTO_REGISTER_REPOSITORY
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template <class T>
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inline void register_repository(const QString &sKey);
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#endif // _QX_AUTO_REGISTER_REPOSITORY
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/*!
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* \ingroup QxFactory
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* \brief qx::QxFactory<T> : concrete factory class to create object of type T dynamically using the class name
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*/
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template <class T>
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class QxFactory : public IxFactory
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{
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public:
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QxFactory(const QString &sKey) : IxFactory(sKey) { QX_AUTO_REGISTER_REPOSITORY(T, sKey); }
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virtual ~QxFactory() { ; }
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#ifdef _QX_ENABLE_QT_NETWORK
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virtual qx::any createObject(bool bRawPointer = false) const
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{
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QxClass<T>::getSingleton();
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return qxCreateInstance<std::is_abstract<T>::value, std::is_base_of<qx::IxPersistable, T>::value, std::is_base_of<qx::service::IxService, T>::value, std::is_base_of<qx::service::IxParameter, T>::value, std::is_base_of<QObject, T>::value, 0>::create(bRawPointer);
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}
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virtual void *createObjectNudePtr() const
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{
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QxClass<T>::getSingleton();
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return qxCreateInstance<std::is_abstract<T>::value, std::is_base_of<qx::IxPersistable, T>::value, std::is_base_of<qx::service::IxService, T>::value, std::is_base_of<qx::service::IxParameter, T>::value, std::is_base_of<QObject, T>::value, 0>::createNudePtr();
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}
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#else // _QX_ENABLE_QT_NETWORK
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virtual qx::any createObject(bool bRawPointer = false) const
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{
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QxClass<T>::getSingleton();
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return qxCreateInstance<std::is_abstract<T>::value, std::is_base_of<qx::IxPersistable, T>::value, false, false, std::is_base_of<QObject, T>::value, 0>::create(bRawPointer);
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}
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virtual void *createObjectNudePtr() const
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{
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QxClass<T>::getSingleton();
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return qxCreateInstance<std::is_abstract<T>::value, std::is_base_of<qx::IxPersistable, T>::value, false, false, std::is_base_of<QObject, T>::value, 0>::createNudePtr();
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}
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#endif // _QX_ENABLE_QT_NETWORK
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#ifndef _QX_NO_RTTI
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virtual const std::type_info &typeInfo() const
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{
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return typeid(T);
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}
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#endif // _QX_NO_RTTI
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private:
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template <bool bIsAbstract /* = false */, bool bIsIxPersistable /* = false */, bool bIsIxService /* = false */, bool bIsIxParameter /* = false */, bool bIsQObject /* = false */, int dummy>
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struct qxCreateInstance
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{
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static inline qx::any create(bool bRawPointer)
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{
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if (bRawPointer)
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{
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T *p = new T();
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return qx::any(p);
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};
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std::shared_ptr<T> ptr = std::make_shared<T>();
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return qx::any(ptr);
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}
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static inline void *createNudePtr() { return static_cast<void *>(new T()); }
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};
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template <bool bIsIxPersistable, bool bIsIxService, bool bIsIxParameter, bool bIsQObject, int dummy>
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struct qxCreateInstance<true, bIsIxPersistable, bIsIxService, bIsIxParameter, bIsQObject, dummy>
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{
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static inline qx::any create(bool bRawPointer)
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{
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Q_UNUSED(bRawPointer);
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qDebug(QX_STR_CANNOT_INSTANTIATE_ABSTRACT_CLASS, qx::trait::get_class_name<T>::get());
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return qx::any();
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}
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static inline void *createNudePtr()
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{
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qDebug(QX_STR_CANNOT_INSTANTIATE_ABSTRACT_CLASS, qx::trait::get_class_name<T>::get());
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return NULL;
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}
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};
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template <bool bIsQObject, int dummy>
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struct qxCreateInstance<false, true, false, false, bIsQObject, dummy>
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{
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static inline qx::any create(bool bRawPointer)
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{
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if (bRawPointer)
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{
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T *p = new T();
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return qx::any(p);
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};
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std::shared_ptr<T> ptr = std::make_shared<T>();
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return qx::any(ptr);
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}
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static inline void *createNudePtr() { return static_cast<qx::IxPersistable *>(new T()); }
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};
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#ifdef _QX_ENABLE_QT_NETWORK
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template <bool bIsQObject, int dummy>
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struct qxCreateInstance<false, false, true, false, bIsQObject, dummy>
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{
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static inline qx::any create(bool bRawPointer)
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{
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if (bRawPointer)
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{
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T *p = new T();
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return qx::any(p);
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};
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std::shared_ptr<T> ptr = std::make_shared<T>();
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return qx::any(ptr);
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}
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static inline void *createNudePtr() { return static_cast<qx::service::IxService *>(new T()); }
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};
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template <bool bIsQObject, int dummy>
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struct qxCreateInstance<false, false, false, true, bIsQObject, dummy>
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{
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static inline qx::any create(bool bRawPointer)
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{
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if (bRawPointer)
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{
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T *p = new T();
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return qx::any(p);
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};
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std::shared_ptr<T> ptr = std::make_shared<T>();
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return qx::any(ptr);
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}
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static inline void *createNudePtr() { return static_cast<qx::service::IxParameter *>(new T()); }
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};
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#endif // _QX_ENABLE_QT_NETWORK
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template <int dummy>
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struct qxCreateInstance<false, false, false, false, true, dummy>
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{
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static inline qx::any create(bool bRawPointer)
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{
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if (bRawPointer)
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{
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T *p = new T();
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return qx::any(p);
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};
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std::shared_ptr<T> ptr = std::make_shared<T>();
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return qx::any(ptr);
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}
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static inline void *createNudePtr() { return static_cast<QObject *>(new T()); }
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};
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};
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} // namespace qx
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#include "../../inl/QxFactory/QxFactory.inl"
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#endif // _QX_FACTORY_H_
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