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azerothcore-wotlk/src/common/Dynamic/FactoryHolder.h

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/*
* Copyright (C) 2016+ AzerothCore <www.azerothcore.org>, released under GNU GPL v2 license: https://github.com/azerothcore/azerothcore-wotlk/blob/master/LICENSE-GPL2
* Copyright (C) 2008-2016 TrinityCore <http://www.trinitycore.org/>
* Copyright (C) 2005-2009 MaNGOS <http://getmangos.com/>
*/
#ifndef ACORE_FACTORY_HOLDER
#define ACORE_FACTORY_HOLDER
#include "Define.h"
#include "Dynamic/TypeList.h"
#include "ObjectRegistry.h"
/*
* FactoryHolder holds a factory object of a specific type
*/
template<class T, class Key = std::string>
class FactoryHolder
{
public:
typedef ObjectRegistry<FactoryHolder<T, Key >, Key > FactoryHolderRegistry;
FactoryHolder(Key k) : i_key(k) { }
virtual ~FactoryHolder() { }
inline Key key() const { return i_key; }
void RegisterSelf(void) { FactoryHolderRegistry::instance()->InsertItem(this, i_key); }
void DeregisterSelf(void) { FactoryHolderRegistry::instance()->RemoveItem(this, false); }
/// Abstract Factory create method
virtual T* Create(void* data = NULL) const = 0;
private:
Key i_key;
};
/*
* Permissible is a classic way of letting the object decide
* whether how good they handle things. This is not retricted
* to factory selectors.
*/
template<class T>
class Permissible
{
public:
virtual ~Permissible() { }
virtual int Permit(const T*) const = 0;
};
#endif