usServiceTrackerCustomizer.h

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/*============================================================================
 
  Library: CppMicroServices
 
  Copyright (c) German Cancer Research Center (DKFZ)
  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.
  You may obtain a copy of the License at
 
    https://www.apache.org/licenses/LICENSE-2.0
 
  Unless required by applicable law or agreed to in writing, software
  distributed under the License 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 USSERVICETRACKERCUSTOMIZER_H
#define USSERVICETRACKERCUSTOMIZER_H
 
#include "usServiceReference.h"
 
US_BEGIN_NAMESPACE
 
template<class S, class T = S*>
struct ServiceTrackerCustomizer {
 
  typedef S ServiceType;
  typedef T TrackedType;
  typedef ServiceReference<ServiceType> ServiceReferenceType;
 
  virtual ~ServiceTrackerCustomizer() {}
 
  virtual TrackedType AddingService(const ServiceReferenceType& reference) = 0;
 
  virtual void ModifiedService(const ServiceReferenceType& reference, TrackedType service) = 0;
 
  virtual void RemovedService(const ServiceReferenceType& reference, TrackedType service) = 0;
};
 
US_END_NAMESPACE
 
#endif // USSERVICETRACKERCUSTOMIZER_H