RAuxStore.h

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// Copyright (C) 2002-2025 CERN for the benefit of the ATLAS collaboration
#ifndef XAODROOTACCESS_RAUXSTORE_H
#define XAODROOTACCESS_RAUXSTORE_H
 
// Framework include(s).
#include "AsgMessaging/StatusCode.h"
#include "AthContainersInterfaces/IAuxStoreIO.h"
 
// Local include(s).
#include "xAODRootAccess/tools/AuxStoreBase.h"
 
// ROOT include(s).
#include <ROOT/REntry.hxx>
#include <ROOT/RNTupleModel.hxx>
#include <ROOT/RNTupleReader.hxx>
#include <ROOT/RNTupleWriter.hxx>
 
// System include(s).
#include <cstdint>
#include <memory>
#include <string_view>
 
namespace xAOD {
 
class RAuxStore : public details::AuxStoreBase {
 
 public:
  using RNTupleReader = ROOT::Experimental::RNTupleReader;
  using RNTupleWriter = ROOT::Experimental::RNTupleWriter;
  using REntry = ROOT::Experimental::REntry;
 
  RAuxStore(std::string_view prefix = "", bool topStore = true,
            EStructMode mode = EStructMode::kUndefinedStore);
  virtual ~RAuxStore();
 
  virtual void setPrefix(std::string_view prefix) override;
 
  StatusCode readFrom(RNTupleReader& reader);
  StatusCode writeTo(RNTupleWriter& writer);
 
  StatusCode getEntry(std::int64_t entry, int getall = 0);
  StatusCode commitTo(REntry& entry);
 
 
  virtual void reset() override;
 
 private:
  virtual bool hasEntryFor(SG::auxid_t auxid) const override;
  virtual StatusCode getEntryFor(SG::auxid_t auxid) override;
  virtual bool hasOutput() const override;
 
  virtual StatusCode setupInputData(SG::auxid_t auxid) override;
  virtual StatusCode setupOutputData(SG::auxid_t auxid) override;
 
  virtual const void* getInputObject(SG::auxid_t auxid) const override;
  virtual const std::type_info* getInputType(SG::auxid_t auxid) const override;
 
 
  struct impl;
  std::unique_ptr<impl> m_impl;
 
};  // class RAuxStore
}  // namespace xAOD
 
#endif  // XAODROOTACCESS_RAUXSTORE_H