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// AbstractObserver.h
//
// Library: Foundation
// Package: Notifications
// Module: NotificationCenter
//
// Definition of the AbstractObserver class.
//
// Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH.
// and Contributors.
//
// SPDX-License-Identifier: BSL-1.0
//
#ifndef Foundation_AbstractObserver_INCLUDED
#define Foundation_AbstractObserver_INCLUDED
#include "Poco/Foundation.h"
#include "Poco/Notification.h"
namespace Poco {
class Foundation_API AbstractObserver
/// The base class for all instantiations of
/// the Observer and NObserver template classes.
{
public:
AbstractObserver();
AbstractObserver(const AbstractObserver& observer);
virtual ~AbstractObserver();
AbstractObserver& operator = (const AbstractObserver& observer);
virtual void notify(Notification* pNf) const = 0;
virtual bool equals(const AbstractObserver& observer) const = 0;
virtual bool accepts(Notification* pNf) const = 0;
virtual AbstractObserver* clone() const = 0;
virtual void disable() = 0;
};
} // namespace Poco
#endif // Foundation_AbstractObserver_INCLUDED
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