NotifierInterface.h

Go to the documentation of this file.

/*
 * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License").
 * You may not use this file except in compliance with the License.
 * A copy of the License is located at
 *
 *     http://aws.amazon.com/apache2.0/
 *
 * or in the "license" file accompanying this file. This file is distributed
 * on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
 * express or implied. See the License for the specific language governing
 * permissions and limitations under the License.
 */

#ifndef ACSDK_NOTIFIERINTERFACES_NOTIFIERINTERFACE_H_
#define ACSDK_NOTIFIERINTERFACES_NOTIFIERINTERFACE_H_

#include <functional>
#include <memory>

namespace alexaClientSDK {
namespace notifierInterfaces {

template <typename ObserverType>
class NotifierInterface {
public:
    virtual ~NotifierInterface() = default;

    virtual void addObserver(const std::shared_ptr<ObserverType>& observer) = 0;

    virtual void removeObserver(const std::shared_ptr<ObserverType>& observer) = 0;

    virtual void addWeakPtrObserver(const std::weak_ptr<ObserverType>& observer) = 0;

    virtual void removeWeakPtrObserver(const std::weak_ptr<ObserverType>& observer) = 0;

    virtual void notifyObservers(std::function<void(const std::shared_ptr<ObserverType>&)> notify) = 0;

    virtual bool notifyObserversInReverse(std::function<void(const std::shared_ptr<ObserverType>&)> notify) = 0;

    virtual void setAddObserverFunction(std::function<void(const std::shared_ptr<ObserverType>&)> postAddFunc) = 0;
};

}  // namespace notifierInterfaces
}  // namespace alexaClientSDK

#endif  // ACSDK_NOTIFIERINTERFACES_NOTIFIERINTERFACE_H_