Belle II Software  release-08-01-10
Observer.h
1 /**************************************************************************
2  * basf2 (Belle II Analysis Software Framework) *
3  * Author: The Belle II Collaboration *
4  * *
5  * See git log for contributors and copyright holders. *
6  * This file is licensed under LGPL-3.0, see LICENSE.md. *
7  **************************************************************************/
8 
9 #pragma once
10 
11 
12 namespace Belle2 {
19  class Observer {
20  public:
22  template<class T, class someRangeType, class someHitType>
23  static void notify(T, double, someRangeType, const someHitType&, const someHitType&) {};
24 
26  explicit Observer() {};
27 
29  template <typename ... types>
30  static void initialize(const types& ...) {};
31 
33  template <typename ... types>
34  static void terminate(const types& ...) {};
35  };
37 }
Observer base class which can be used to evaluate the VXDTF2's Filters.
Definition: Observer.h:19
static void terminate(const types &...)
static method used by the observed object to terminate the observer.
Definition: Observer.h:34
static void notify(T, double, someRangeType, const someHitType &, const someHitType &)
exemplary draft for a notify-function of an observer
Definition: Observer.h:23
static void initialize(const types &...)
static method used by the observed object to initialize the observer.
Definition: Observer.h:30
Observer()
An empty constructor for an empty class.
Definition: Observer.h:26
Abstract base class for different kinds of events.