// Copyright 2019-2020 CERN and copyright holders of ALICE O2.

// See https://alice-o2.web.cern.ch/copyright for details of the copyright holders.

// All rights not expressly granted are reserved.

//

// This software is distributed under the terms of the GNU General Public

// License v3 (GPL Version 3), copied verbatim in the file "COPYING".

//

// In applying this license CERN does not waive the privileges and immunities

// granted to it by virtue of its status as an Intergovernmental Organization

// or submit itself to any jurisdiction.

/// \file EvIndex.h

/// \brief Class to store event ID and index in the event for objects like track, cluster...

/// \author ruben.shahoyan@cern.ch

#ifndef ALICEO2_EVINDEX_H

#define ALICEO2_EVINDEX_H

#include <Rtypes.h>

namespace o2

{

namespace dataformats

{

// Composed Label to encode object origin in the tree or other segmented input

template <typename E = int, typename I = int>

class EvIndex

{

public:

EvIndex(E ev, I idx) { set(ev, idx); }

EvIndex(const EvIndex<E, I>& src) = default;

EvIndex() = default;

~EvIndex() = default;

void set(E ev, I idx)

{

mEvent = ev;

mIndex = idx;

}

E getEvent() const { return mEvent; }

I getIndex() const { return mIndex; }

void setEvent(E ev) { mEvent = ev; }

void setIndex(I ind) { mIndex = ind; }

void shiftEvent(E inc) { mEvent += inc; }

void shiftIndex(I inc) { mIndex += inc; }

private:

E mEvent{}; ///< ID of event or chunk or message containing referred object

I mIndex{}; ///< index in the event

ClassDefNV(EvIndex, 1);

};

} // namespace dataformats

} // namespace o2

#endif