cartobase  5.0.5
object_factory.h
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33 
34 #ifndef CARTOBASE_OBJECT_OBJECT_FACTORY_H
35 #define CARTOBASE_OBJECT_OBJECT_FACTORY_H
36 
38 
39 namespace carto {
40 
41 class ObjectFactory : public RCObject
42 {
43 public:
44 
46 
47  static void registerFactory( const std::string &type, ObjectFactoryFunction );
48  template <typename T>
49  inline static void registerDefaultFactory( const std::string &type );
50  static Object createObject( const std::string &type );
51 
52 
53 private:
54 
55  typedef std::map< std::string, ObjectFactoryFunction > FactoriesType;
56 
57  template <typename T>
58  static Object _defaultFactoryFunction();
59 
60  ObjectFactory();
61 
62  void _registerFactory( const std::string &type, ObjectFactoryFunction );
63  template <typename T>
64  inline void _registerDefaultFactory( const std::string &type );
65  Object _createObject( const std::string &type ) const;
66 
67  static ObjectFactory &_singleton();
68 
69  FactoriesType _factories;
70 };
71 
72 
73 template <typename T>
74 inline void ObjectFactory::registerDefaultFactory( const std::string &type )
75 {
76  _singleton()._registerDefaultFactory<T>( type );
77 }
78 
79 
80 template <typename T>
81 Object ObjectFactory::_defaultFactoryFunction()
82 {
83  return Object::value( T() );
84 }
85 
86 // template <>
87 // Object ObjectFactory::_defaultFactoryFunction<int>()
88 // {
89 // return Object::value( int() );
90 // }
91 
92 template <typename T>
93 inline void ObjectFactory::_registerDefaultFactory( const std::string &type )
94 {
95  _registerFactory( type, &ObjectFactory::_defaultFactoryFunction<T> );
96 }
97 
98 
99 } // namespace carto
100 
101 #endif // ifndef CARTOBASE_OBJECT_OBJECT_FACTORY_H
static void registerFactory(const std::string &type, ObjectFactoryFunction)
static Object createObject(const std::string &type)
Base class for reference counted objects (intrusive)
Definition: rcptr.h:106
static Object value()
factory function: builds an Object by using the default constructor
Definition: object.h:1482
Object(* ObjectFactoryFunction)()
static void registerDefaultFactory(const std::string &type)