gistfile1.txt

public GenericActivityMapper implements ActivityMapper {

  Map<Place,Activity> activites = new HashMap<String,Activity>;

  @Inject 
  void initServices(@Any Instance<Activity> activities) { 
    for (Activity activity: activities) {
      activites.put(activitity.getPlace(),activity);
    }
  }

  public Activity getActivity( Place place ){
    return activities.getPlace();
  }
}