Program Listing for File aggregation.h

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// Copyright The OpenTelemetry Authors
// SPDX-License-Identifier: Apache-2.0

#pragma once

#include <stdint.h>
#include <memory>
#include "opentelemetry/sdk/metrics/data/metric_data.h"
#include "opentelemetry/version.h"

OPENTELEMETRY_BEGIN_NAMESPACE
namespace sdk
{
namespace metrics
{
class Aggregation
{
public:
  virtual void Aggregate(int64_t value, const PointAttributes &attributes = {}) noexcept = 0;

  virtual void Aggregate(double value, const PointAttributes &attributes = {}) noexcept = 0;

  virtual std::unique_ptr<Aggregation> Merge(const Aggregation &delta) const noexcept = 0;

  virtual std::unique_ptr<Aggregation> Diff(const Aggregation &next) const noexcept = 0;

  virtual PointType ToPoint() const noexcept = 0;

  Aggregation() = default;

  Aggregation(const Aggregation &)            = delete;
  Aggregation(Aggregation &&)                 = delete;
  Aggregation &operator=(const Aggregation &) = delete;
  Aggregation &operator=(Aggregation &&)      = delete;

  virtual ~Aggregation() = default;
};

}  // namespace metrics
}  // namespace sdk
OPENTELEMETRY_END_NAMESPACE