meta_object.hpp

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// Note: This header defines a simplication of a shared library
 
#ifndef CLASS_LOADER__META_OBJECT_HPP_
#define CLASS_LOADER__META_OBJECT_HPP_
 
#include <string>
#include <typeinfo>
#include <vector>
 
#include "class_loader/visibility_control.hpp"
 
namespace class_loader
{
 
class ClassLoader;  // Forward declaration
 
namespace impl
{
 
class AbstractMetaObjectBaseImpl;
 
class CLASS_LOADER_PUBLIC AbstractMetaObjectBase
{
public:
  AbstractMetaObjectBase(
    const std::string & class_name,
    const std::string & base_class_name,
    const std::string & typeid_base_class_name = "UNSET");
  ~AbstractMetaObjectBase();
 
  const std::string & className() const;
 
  const std::string & baseClassName() const;
  const std::string & typeidBaseClassName() const;
 
  const std::string & getAssociatedLibraryPath() const;
 
  void setAssociatedLibraryPath(const std::string & library_path);
 
  void addOwningClassLoader(ClassLoader * loader);
 
  void removeOwningClassLoader(const ClassLoader * loader);
 
  bool isOwnedBy(const ClassLoader * loader) const;
 
  bool isOwnedByAnybody() const;
 
  size_t getAssociatedClassLoadersCount() const;
 
  ClassLoader * getAssociatedClassLoader(size_t index) const;
 
protected:
  virtual void dummyMethod() {}
 
  AbstractMetaObjectBaseImpl * impl_;
};
 
template<class B>
class AbstractMetaObject : public AbstractMetaObjectBase
{
public:
  AbstractMetaObject(const std::string & class_name, const std::string & base_class_name)
  : AbstractMetaObjectBase(class_name, base_class_name, typeid(B).name())
  {
  }
 
  virtual B * create() const = 0;
 
private:
  AbstractMetaObject();
  AbstractMetaObject(const AbstractMetaObject &);
  AbstractMetaObject & operator=(const AbstractMetaObject &);
};
 
template<class C, class B>
class MetaObject : public AbstractMetaObject<B>
{
public:
  MetaObject(const std::string & class_name, const std::string & base_class_name)
  : AbstractMetaObject<B>(class_name, base_class_name)
  {
  }
 
  B * create() const
  {
    return new C;
  }
};
 
}  // namespace impl
}  // namespace class_loader
 
#endif  // CLASS_LOADER__META_OBJECT_HPP_