WeightingFct.h

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/*
 * (C) Copyright 2009-2016 ECMWF.
 * 
 * This software is licensed under the terms of the Apache Licence Version 2.0
 * which can be obtained at http://www.apache.org/licenses/LICENSE-2.0. 
 * In applying this licence, ECMWF does not waive the privileges and immunities 
 * granted to it by virtue of its status as an intergovernmental organisation nor
 * does it submit to any jurisdiction.
 */
 
#ifndef OOPS_BASE_WEIGHTINGFCT_H_
#define OOPS_BASE_WEIGHTINGFCT_H_
 
#include <map>
 
#include "oops/util/DateTime.h"
 
namespace util {
  class Duration;
}
 
namespace oops {
 
// -----------------------------------------------------------------------------
 
/// Weighting Function
/*!
 * Abstract base class for weighting functions for various filters.
 */
 
class WeightingFct {
 public:
  virtual ~WeightingFct() = default;
 
  virtual std::map< util::DateTime, double > setWeights(const util::DateTime &,
                                                        const util::DateTime &,
                                                        const util::Duration &) = 0;
};
 
// -----------------------------------------------------------------------------
 
}  // namespace oops
 
#endif  // OOPS_BASE_WEIGHTINGFCT_H_