dfe::NamedTupleRootReader< NamedTuple > Class Template Reference

Read records from a ROOT TTree. More...

#include <acts/blob/master/thirdparty/dfelibs/dfe/dfe_io_root.hpp>

Public Member Functions
	NamedTupleRootReader ()=delete
	NamedTupleRootReader (const NamedTupleRootReader &)=delete
	NamedTupleRootReader (NamedTupleRootReader &&)=delete
NamedTupleRootReader &	operator= (const NamedTupleRootReader &)=delete
NamedTupleRootReader &	operator= (NamedTupleRootReader &&)=delete
	NamedTupleRootReader (const std::string &path, const std::string &tree_name)
	NamedTupleRootReader (TDirectory *dir, const std::string &tree_name)
	~NamedTupleRootReader ()
	Write the tree and close the owned file.
bool	read (NamedTuple &record)

Private Types
using	Tuple = typename NamedTuple::Tuple

Private Member Functions
template<std::size_t... I>
void	setup_branches (std::index_sequence< I...>)

Private Attributes
TFile *	m_file
TTree *	m_tree
int64_t	m_next
Tuple	m_data

Detailed Description

template<typename NamedTuple>
class dfe::NamedTupleRootReader< NamedTuple >

Read records from a ROOT TTree.

Definition at line 83 of file dfe_io_root.hpp.

View newest version in sPHENIX GitHub at line 83 of file dfe_io_root.hpp

Member Typedef Documentation

template<typename NamedTuple >

using dfe::NamedTupleRootReader< NamedTuple >::Tuple = typename NamedTuple::Tuple

private

Definition at line 115 of file dfe_io_root.hpp.

View newest version in sPHENIX GitHub at line 115 of file dfe_io_root.hpp

Constructor & Destructor Documentation

template<typename NamedTuple >

dfe::NamedTupleRootReader< NamedTuple >::NamedTupleRootReader ( )

delete

template<typename NamedTuple >

dfe::NamedTupleRootReader< NamedTuple >::NamedTupleRootReader ( const NamedTupleRootReader< NamedTuple > &  )

delete

template<typename NamedTuple >

dfe::NamedTupleRootReader< NamedTuple >::NamedTupleRootReader ( NamedTupleRootReader< NamedTuple > &&  )

delete

template<typename NamedTuple >

dfe::NamedTupleRootReader< NamedTuple >::NamedTupleRootReader ( const std::string &  path, const std::string &  tree_name  )

inline

Open a file at the given path.

Parameters

path	Path to the input file
tree_name	Name of the input tree within the file

Definition at line 249 of file dfe_io_root.hpp.

View newest version in sPHENIX GitHub at line 249 of file dfe_io_root.hpp

References dfe::NamedTupleRootReader< NamedTuple >::m_file, dfe::NamedTupleRootReader< NamedTuple >::m_tree, and dfe::NamedTupleRootReader< NamedTuple >::setup_branches().

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template<typename NamedTuple >

dfe::NamedTupleRootReader< NamedTuple >::NamedTupleRootReader ( TDirectory *  dir, const std::string &  tree_name  )

inline

Open a tree from a ROOT directory.

Parameters

dir	Input directory for the tree
tree_name	Name of the input tree relative to the directory

When the reader is created with an existing ROOT directory, the user is responsible for ensuring the underlying file is closed.

Definition at line 266 of file dfe_io_root.hpp.

View newest version in sPHENIX GitHub at line 266 of file dfe_io_root.hpp

References dfe::NamedTupleRootReader< NamedTuple >::m_tree, and dfe::NamedTupleRootReader< NamedTuple >::setup_branches().

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template<typename NamedTuple >

dfe::NamedTupleRootReader< NamedTuple >::~NamedTupleRootReader ( )

inline

Write the tree and close the owned file.

Definition at line 326 of file dfe_io_root.hpp.

View newest version in sPHENIX GitHub at line 326 of file dfe_io_root.hpp

Member Function Documentation

template<typename NamedTuple >

NamedTupleRootReader& dfe::NamedTupleRootReader< NamedTuple >::operator= ( const NamedTupleRootReader< NamedTuple > &  )

delete

template<typename NamedTuple >

NamedTupleRootReader& dfe::NamedTupleRootReader< NamedTuple >::operator= ( NamedTupleRootReader< NamedTuple > &&  )

delete

template<typename NamedTuple >

bool dfe::NamedTupleRootReader< NamedTuple >::read ( NamedTuple &  record )

inline

Read the next record from the file.

Returns

true if a record was successfully read

false if no more records are available

Definition at line 336 of file dfe_io_root.hpp.

View newest version in sPHENIX GitHub at line 336 of file dfe_io_root.hpp

References m_data.

template<typename NamedTuple >

template<std::size_t... I>

void dfe::NamedTupleRootReader< NamedTuple >::setup_branches ( std::index_sequence< I...>  )

inlineprivate

Definition at line 312 of file dfe_io_root.hpp.

View newest version in sPHENIX GitHub at line 312 of file dfe_io_root.hpp

References nlohmann::detail::get(), dfe::io_root_impl::get_address(), I, m_data, and void().

Referenced by dfe::NamedTupleRootReader< NamedTuple >::NamedTupleRootReader().

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Member Data Documentation

template<typename NamedTuple >

Tuple dfe::NamedTupleRootReader< NamedTuple >::m_data

private

Definition at line 120 of file dfe_io_root.hpp.

View newest version in sPHENIX GitHub at line 120 of file dfe_io_root.hpp

template<typename NamedTuple >

TFile* dfe::NamedTupleRootReader< NamedTuple >::m_file

private

Definition at line 117 of file dfe_io_root.hpp.

View newest version in sPHENIX GitHub at line 117 of file dfe_io_root.hpp

Referenced by dfe::NamedTupleRootReader< NamedTuple >::NamedTupleRootReader().

template<typename NamedTuple >

int64_t dfe::NamedTupleRootReader< NamedTuple >::m_next

private

Definition at line 119 of file dfe_io_root.hpp.

View newest version in sPHENIX GitHub at line 119 of file dfe_io_root.hpp

template<typename NamedTuple >

TTree* dfe::NamedTupleRootReader< NamedTuple >::m_tree

private

Definition at line 118 of file dfe_io_root.hpp.

View newest version in sPHENIX GitHub at line 118 of file dfe_io_root.hpp

Referenced by dfe::NamedTupleRootReader< NamedTuple >::NamedTupleRootReader().

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

• acts/blob/master/thirdparty/dfelibs/dfe/dfe_io_root.hpp