Files
XdlOrm/include/QxFactory/QxFactory.h
2026-04-03 11:32:07 +08:00

232 lines
8.0 KiB
C++

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