RNTupleOptions.hxx

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/// \file ROOT/RNTupleOptions.hxx
/// \ingroup NTuple ROOT7
/// \author Jakob Blomer <jblomer@cern.ch>
/// \date 2019-08-25
/// \warning This is part of the ROOT 7 prototype! It will change without notice. It might trigger earthquakes. Feedback
/// is welcome!
 
/*************************************************************************
 * Copyright (C) 1995-2019, Rene Brun and Fons Rademakers.               *
 * All rights reserved.                                                  *
 *                                                                       *
 * For the licensing terms see $ROOTSYS/LICENSE.                         *
 * For the list of contributors see $ROOTSYS/README/CREDITS.             *
 *************************************************************************/
 
#ifndef ROOT7_RNTupleOptions
#define ROOT7_RNTupleOptions
 
#include <Compression.h>
 
namespace ROOT {
namespace Experimental {
 
// clang-format off
/**
\class ROOT::Experimental::ENTupleContainerFormat
\ingroup NTuple
\brief Describes the options for wrapping RNTuple data in files
*/
// clang-format on
enum class ENTupleContainerFormat {
  kTFile, // ROOT TFile
  kBare, // A thin envelope supporting a single RNTuple only
};
 
 
// clang-format off
/**
\class ROOT::Experimental::RNTupleWriteOptions
\ingroup NTuple
\brief Common user-tunable settings for storing ntuples
 
All page sink classes need to support the common options.
*/
// clang-format on
class RNTupleWriteOptions {
  int fCompression{RCompressionSetting::EDefaults::kUseAnalysis};
  ENTupleContainerFormat fContainerFormat{ENTupleContainerFormat::kTFile};
 
public:
  int GetCompression() const { return fCompression; }
  void SetCompression(int val) { fCompression = val; }
  void SetCompression(RCompressionSetting::EAlgorithm algorithm, int compressionLevel) {
    fCompression = CompressionSettings(algorithm, compressionLevel);
  }
 
  ENTupleContainerFormat GetContainerFormat() const { return fContainerFormat; }
  void SetContainerFormat(ENTupleContainerFormat val) { fContainerFormat = val; }
};
 
 
// clang-format off
/**
\class ROOT::Experimental::RNTupleReadOptions
\ingroup NTuple
\brief Common user-tunable settings for reading ntuples
 
All page source classes need to support the common options.
*/
// clang-format on
class RNTupleReadOptions {
public:
  enum EClusterCache {
      kOff,
      kOn,
      kDefault = kOn,
   };
 
private:
   EClusterCache fClusterCache = EClusterCache::kDefault;
 
public:
   EClusterCache GetClusterCache() const { return fClusterCache; }
   void SetClusterCache(EClusterCache val) { fClusterCache = val; }
};
 
} // namespace Experimental
} // namespace ROOT
 
#endif