ROOT::Internal::RDF::SnapshotOutputWriter Struct Reference

An object to store an output file and a tree in one common place to share them between instances of Snapshot with systematic uncertainties.

Definition at line 1013 of file RDFSnapshotHelpers.cxx.

Classes
struct	Bitmask

Public Member Functions
	SnapshotOutputWriter (SnapshotOutputWriter &&) noexcept=delete
	SnapshotOutputWriter (SnapshotOutputWriter const &)=delete
	SnapshotOutputWriter (TFile *file)
	~SnapshotOutputWriter ()
void	ClearMaskBits ()
	Clear all bits, as if none of the variations passed its filter.
bool	MaskEmpty () const
	Test if any of the mask bits are set.
SnapshotOutputWriter &	operator= (SnapshotOutputWriter &&) noexcept=delete
SnapshotOutputWriter &	operator= (SnapshotOutputWriter const &)=delete
void	RegisterBranch (std::string const &branchName, unsigned int variationIndex)
	Register a branch and corresponding systematic uncertainty.
void	SetMaskBit (unsigned int index)
	Set a bit signalling that the variation at index passed its filter.
void	Write () const
	Write the current event and the bitmask to the output dataset.

Public Attributes
std::vector< Bitmask >	fBitMasks
std::unordered_map< std::string, std::pair< std::string, unsigned int > >	fBranchToBitmaskMapping
std::unordered_map< std::string, unsigned int >	fBranchToVariationMapping
std::string	fDirectoryName
std::unique_ptr< TFile >	fFile
unsigned int	fNBits = 0
RLoopManager *	fOutputLoopManager
std::unique_ptr< TTree >	fTree

Constructor & Destructor Documentation

SnapshotOutputWriter() [1/3]

ROOT::Internal::RDF::SnapshotOutputWriter::SnapshotOutputWriter ( TFile * file )

inline

Definition at line 1033 of file RDFSnapshotHelpers.cxx.

~SnapshotOutputWriter()

ROOT::Internal::RDF::SnapshotOutputWriter::~SnapshotOutputWriter ( )

inline

Definition at line 1034 of file RDFSnapshotHelpers.cxx.

SnapshotOutputWriter() [2/3]

ROOT::Internal::RDF::SnapshotOutputWriter::SnapshotOutputWriter ( SnapshotOutputWriter const & )

delete

SnapshotOutputWriter() [3/3]

ROOT::Internal::RDF::SnapshotOutputWriter::SnapshotOutputWriter ( SnapshotOutputWriter && )

deletenoexcept

Member Function Documentation

ClearMaskBits()

void ROOT::Internal::RDF::SnapshotOutputWriter::ClearMaskBits ( )

inline

Clear all bits, as if none of the variations passed its filter.

Definition at line 1096 of file RDFSnapshotHelpers.cxx.

MaskEmpty()

bool ROOT::Internal::RDF::SnapshotOutputWriter::MaskEmpty ( ) const

inline

Test if any of the mask bits are set.

Definition at line 1111 of file RDFSnapshotHelpers.cxx.

operator=() [1/2]

SnapshotOutputWriter & ROOT::Internal::RDF::SnapshotOutputWriter::operator= ( SnapshotOutputWriter && )

deletenoexcept

operator=() [2/2]

SnapshotOutputWriter & ROOT::Internal::RDF::SnapshotOutputWriter::operator= ( SnapshotOutputWriter const & )

delete

RegisterBranch()

void ROOT::Internal::RDF::SnapshotOutputWriter::RegisterBranch ( std::string const & branchName, unsigned int variationIndex )

inline

Register a branch and corresponding systematic uncertainty.

This will create an entry in the mapping from branch names to bitmasks, so the corresponding column can be masked if it doesn't contain valid entries. This mapping is written next to the tree into the output file.

Definition at line 1067 of file RDFSnapshotHelpers.cxx.

SetMaskBit()

void ROOT::Internal::RDF::SnapshotOutputWriter::SetMaskBit ( unsigned int index )

inline

Set a bit signalling that the variation at index passed its filter.

Definition at line 1103 of file RDFSnapshotHelpers.cxx.

Write()

void ROOT::Internal::RDF::SnapshotOutputWriter::Write ( ) const

inline

Write the current event and the bitmask to the output dataset.

Definition at line 1117 of file RDFSnapshotHelpers.cxx.

Member Data Documentation

fBitMasks

std::vector<Bitmask> ROOT::Internal::RDF::SnapshotOutputWriter::fBitMasks

Definition at line 1026 of file RDFSnapshotHelpers.cxx.

fBranchToBitmaskMapping

std::unordered_map<std::string, std::pair<std::string, unsigned int> > ROOT::Internal::RDF::SnapshotOutputWriter::fBranchToBitmaskMapping

Definition at line 1030 of file RDFSnapshotHelpers.cxx.

fBranchToVariationMapping

std::unordered_map<std::string, unsigned int> ROOT::Internal::RDF::SnapshotOutputWriter::fBranchToVariationMapping

Definition at line 1028 of file RDFSnapshotHelpers.cxx.

fDirectoryName

std::string ROOT::Internal::RDF::SnapshotOutputWriter::fDirectoryName

Definition at line 1016 of file RDFSnapshotHelpers.cxx.

fFile

std::unique_ptr<TFile> ROOT::Internal::RDF::SnapshotOutputWriter::fFile

Definition at line 1014 of file RDFSnapshotHelpers.cxx.

fNBits

unsigned int ROOT::Internal::RDF::SnapshotOutputWriter::fNBits = 0

Definition at line 1031 of file RDFSnapshotHelpers.cxx.

fOutputLoopManager

RLoopManager* ROOT::Internal::RDF::SnapshotOutputWriter::fOutputLoopManager

Definition at line 1017 of file RDFSnapshotHelpers.cxx.

fTree

std::unique_ptr<TTree> ROOT::Internal::RDF::SnapshotOutputWriter::fTree

Definition at line 1015 of file RDFSnapshotHelpers.cxx.

Collaboration diagram for ROOT::Internal::RDF::SnapshotOutputWriter:

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The documentation for this struct was generated from the following file:

• tree/dataframe/src/RDFSnapshotHelpers.cxx