source: pacpusframework/trunk/include/Pacpus/kernel/GenericObserverInterface.h@ 23

Last change on this file since 23 was 3, checked in by sgosseli, 12 years ago
  • Add the existing Pacpus files from pacpusdev and pacpuscore.
  • Provide a clean build system based on multiple CMake files.
File size: 1.1 KB
Line 
1#pragma once
2#ifndef __GENERIC_OBSERVER_INTERFACE_H__
3#define __GENERIC_OBSERVER_INTERFACE_H__
4
5namespace pacpus {
6
7/** Base class for te GenericObserverInterface template.
8
9 The purpose of this class is to be able to take generic pointers on
10 GenericObserverInterface<T> class template instances.
11*/
12class GenericObserverBase {
13public:
14 virtual ~GenericObserverBase() {}
15};
16
17/** Template interface for generic observers.
18
19 This is a pure virtual class that should be used as a base to classes
20 wishing to receive notifications from GenericObservable classes.
21*/
22template <typename T>
23class GenericObserverInterface : public GenericObserverBase {
24public:
25 virtual ~GenericObserverInterface() {};
26
27 /** Update function.
28
29 This function is called each time the observables notifies its observers
30 of a change. It must be implemented by all classes obeying the
31 GenericObserverInterface interface.
32
33 @param observable is a pointer to the observed object that was updated.
34 */
35 virtual void update(T* observable) = 0;
36};
37
38} // namespace pacpus
39
40
41#endif
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