typeregister.h

   1 #ifndef _CLASSREGISTER_H_
   2 #define _CLASSREGISTER_H_
   3
   4 #include <oberon.h>
   5 #include <map>
   6 #include <string>
   7
   8 namespace odc {
   9         class Store;
  10         class TypeProxyBase; // forward declaration
  11
  12         class TypeRegister {
  13                 static TypeRegister *s_instance;
  14
  15                 std::map<std::string, TypeProxyBase *> d_map;
  16
  17                 TypeRegister();
  18                 TypeRegister(const TypeRegister &other); // NI
  19                 TypeRegister &operator=(const TypeRegister &other); // NI
  20
  21                 public:
  22                 static TypeRegister &getInstance();
  23
  24                 void add(const std::string &name, TypeProxyBase *proxy);
  25                 const TypeProxyBase *get(const std::string &name);
  26         };
  27
  28         class TypeProxyBase {
  29                 public:
  30                 TypeProxyBase(const std::string &name);
  31                 virtual const std::string &getName() const = 0;
  32                 virtual const std::string *getSuper() const = 0;
  33                 virtual Store *newInstance(INTEGER id) const = 0;
  34         };
  35
  36         template <class T> class TypeProxy : public TypeProxyBase {
  37                 public:
  38                 TypeProxy(): TypeProxyBase(T::getType()) {}
  39                 virtual const std::string &getName() const {
  40                         return T::getType();
  41                 }
  42                 virtual const std::string *getSuper() const {
  43                         return T::getSuper();
  44                 }
  45                 virtual Store *newInstance(INTEGER id) const {
  46                         return new T(id);
  47                 }
  48         };
  49 }
  50
  51 #endif // _CLASSREGISTER_H_