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G4PhysicsConstructorFactory.hh
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26 #ifndef G4PhysicsConstructorFactory_h
27 #define G4PhysicsConstructorFactory_h 1
28 
29 
30 #include "globals.hh"
32 #include "G4VPhysicsConstructor.hh"
33 
35 {
36 
37 public:
38 
39  virtual G4VPhysicsConstructor* Instantiate() = 0;
40 
41 };
42 
43 
44 template <typename T> class G4PhysicsConstructorFactory : public G4VBasePhysConstrFactory
45 {
46 public:
47 
49  {
51  }
52 
54  {
55  return new T();
56  }
57 };
58 
59 
60 #define G4_DECLARE_PHYSCONSTR_FACTORY(physics_constructor) \
61  const G4PhysicsConstructorFactory<physics_constructor>& physics_constructor##Factory = G4PhysicsConstructorFactory<physics_constructor>(#physics_constructor)
62 
63 #define G4_REFERENCE_PHYSCONSTR_FACTORY(physics_constructor) \
64  class physics_constructor; \
65  extern const G4PhysicsConstructorFactory<physics_constructor>& physics_constructor##Factory; \
66  const G4PhysicsConstructorFactory<physics_constructor>& physics_constructor##FactoryRef = physics_constructor##Factory
67 
68 
69 #endif