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comparison Framework/Messages/IObserver.h @ 250:5e642859267e am-2

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added new Observable/Observer & MessageBroker (not used yet)
author am@osimis.io
date Mon, 02 Jul 2018 16:36:17 +0200
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children 192e6e349e69
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249:54c7284b0eff 250:5e642859267e
1 /**
2 * Stone of Orthanc
3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
4 * Department, University Hospital of Liege, Belgium
5 * Copyright (C) 2017-2018 Osimis S.A., Belgium
6 *
7 * This program is free software: you can redistribute it and/or
8 * modify it under the terms of the GNU Affero General Public License
9 * as published by the Free Software Foundation, either version 3 of
10 * the License, or (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Affero General Public License for more details.
16 *
17 * You should have received a copy of the GNU Affero General Public License
18 * along with this program. If not, see <http://www.gnu.org/licenses/>.
19 **/
20
21
22 #pragma once
23
24 #include "MessageBroker.h"
25
26 namespace OrthancStone {
27
28 class IObservable;
29 class IMessage;
30
31 class IObserver : public boost::noncopyable
32 {
33 MessageBroker& broker_;
34
35 public:
36 IObserver(MessageBroker& broker)
37 : broker_(broker)
38 {
39 broker_.Register(*this);
40 }
41
42 virtual ~IObserver()
43 {
44 broker_.Unregister(*this);
45 }
46
47 virtual void HandleMessage(IObservable& from, const IMessage& message) = 0;
48 };
49
50 }