ROOT::TreeUtils::RFriendInfo Struct Reference

Information about friend trees of a certain TTree or TChain object.

Definition at line 42 of file RFriendInfo.hxx.

Public Member Functions
	RFriendInfo ()=default
	RFriendInfo (const RFriendInfo &)
	RFriendInfo (RFriendInfo &&)=default
	RFriendInfo (std::vector< std::pair< std::string, std::string > > friendNames, std::vector< std::vector< std::string > > friendFileNames, std::vector< std::vector< std::string > > friendChainSubNames, std::vector< std::vector< Long64_t > > nEntriesPerTreePerFriend, std::vector< std::unique_ptr< TVirtualIndex > > treeIndexInfos)
	Construct a RFriendInfo object from its components.
void	AddFriend (const std::string &treeName, const std::string &fileNameGlob, const std::string &alias="", Long64_t nEntries=TTree::kMaxEntries, TVirtualIndex *indexInfo=nullptr)
	Add information of a single friend.
void	AddFriend (const std::string &treeName, const std::vector< std::string > &fileNameGlobs, const std::string &alias="", const std::vector< Long64_t > &nEntriesVec={}, TVirtualIndex *indexInfo=nullptr)
	Add information of a single friend.
void	AddFriend (const std::vector< std::pair< std::string, std::string > > &treeAndFileNameGlobs, const std::string &alias="", const std::vector< Long64_t > &nEntriesVec={}, TVirtualIndex *indexInfo=nullptr)
	Add information of a single friend.
RFriendInfo &	operator= (const RFriendInfo &)
RFriendInfo &	operator= (RFriendInfo &&)=default

Public Attributes
std::vector< std::vector< std::string > >	fFriendChainSubNames
	Names of the subtrees of a friend TChain.
std::vector< std::vector< std::string > >	fFriendFileNames
	Names of the files where each friend is stored.
std::vector< std::pair< std::string, std::string > >	fFriendNames
	Pairs of names and aliases of each friend tree/chain.
std::vector< std::vector< Long64_t > >	fNEntriesPerTreePerFriend
	Number of entries contained in each tree of each friend.
std::vector< std::unique_ptr< TVirtualIndex > >	fTreeIndexInfos
	Information on the friend's TTreeIndexes.

#include <ROOT/RFriendInfo.hxx>

Constructor & Destructor Documentation

RFriendInfo() [1/4]

ROOT::TreeUtils::RFriendInfo::RFriendInfo ( )

default

RFriendInfo() [2/4]

ROOT::TreeUtils::RFriendInfo::RFriendInfo

(

const RFriendInfo &

other

)

Definition at line 15 of file RFriendInfo.cxx.

RFriendInfo() [3/4]

ROOT::TreeUtils::RFriendInfo::RFriendInfo ( RFriendInfo &&  )

default

RFriendInfo() [4/4]

ROOT::TreeUtils::RFriendInfo::RFriendInfo	(	std::vector< std::pair< std::string, std::string > >	friendNames,
		std::vector< std::vector< std::string > >	friendFileNames,
		std::vector< std::vector< std::string > >	friendChainSubNames,
		std::vector< std::vector< Long64_t > >	nEntriesPerTreePerFriend,
		std::vector< std::unique_ptr< TVirtualIndex > >	treeIndexInfos
	)

Construct a RFriendInfo object from its components.

Definition at line 34 of file RFriendInfo.cxx.

Member Function Documentation

AddFriend() [1/3]

void ROOT::TreeUtils::RFriendInfo::AddFriend	(	const std::string &	treeName,
		const std::string &	fileNameGlob,
		const std::string &	alias = "",
		Long64_t	nEntries = TTree::kMaxEntries,
		TVirtualIndex *	indexInfo = nullptr
	)

Add information of a single friend.

Parameters

[in]	treeName	Name of the tree.
[in]	fileNameGlob	Path to the file. Refer to TChain::Add for globbing rules.
[in]	alias	Alias for this friend.
[in]	nEntries	Number of entries for this friend.
[in]	indexInfo	Tree index info for this friend.

Definition at line 55 of file RFriendInfo.cxx.

AddFriend() [2/3]

void ROOT::TreeUtils::RFriendInfo::AddFriend	(	const std::string &	treeName,
		const std::vector< std::string > &	fileNameGlobs,
		const std::string &	alias = "",
		const std::vector< Long64_t > &	nEntriesVec = {},
		TVirtualIndex *	indexInfo = nullptr
	)

Add information of a single friend.

Parameters

[in]	treeName	Name of the tree.
[in]	fileNameGlobs	Paths to the files. Refer to TChain::Add for globbing rules.
[in]	alias	Alias for this friend.
[in]	nEntriesVec	Number of entries for each file of this friend.
[in]	indexInfo	Tree index info for this friend.

Definition at line 73 of file RFriendInfo.cxx.

AddFriend() [3/3]

void ROOT::TreeUtils::RFriendInfo::AddFriend	(	const std::vector< std::pair< std::string, std::string > > &	treeAndFileNameGlobs,
		const std::string &	alias = "",
		const std::vector< Long64_t > &	nEntriesVec = {},
		TVirtualIndex *	indexInfo = nullptr
	)

Add information of a single friend.

Parameters

[in]	treeAndFileNameGlobs	Pairs of (treename, filename). Refer to TChain::Add for globbing rules.
[in]	alias	Alias for this friend.
[in]	nEntriesVec	Number of entries for each file of this friend.
[in]	indexInfo	Tree index info for this friend.

Definition at line 93 of file RFriendInfo.cxx.

operator=() [1/2]

RFriendInfo & ROOT::TreeUtils::RFriendInfo::operator=

(

const RFriendInfo &

other

)

Definition at line 20 of file RFriendInfo.cxx.

operator=() [2/2]

RFriendInfo & ROOT::TreeUtils::RFriendInfo::operator= ( RFriendInfo &&  )

default

Member Data Documentation

fFriendChainSubNames

std::vector<std::vector<std::string> > ROOT::TreeUtils::RFriendInfo::fFriendChainSubNames

Names of the subtrees of a friend TChain.

fFriendChainSubNames[i] is the list of names of the trees that make a friend TChain whose information is stored at fFriendNames[i] and fFriendFileNames[i]. If instead the friend tree at position i is a TTree, fFriendChainSubNames[i] will be an empty vector.

Definition at line 60 of file RFriendInfo.hxx.

fFriendFileNames

std::vector<std::vector<std::string> > ROOT::TreeUtils::RFriendInfo::fFriendFileNames

Names of the files where each friend is stored.

fFriendFileNames[i] is the list of files for friend with name fFriendNames[i].

Definition at line 52 of file RFriendInfo.hxx.

fFriendNames

std::vector<std::pair<std::string, std::string> > ROOT::TreeUtils::RFriendInfo::fFriendNames

Pairs of names and aliases of each friend tree/chain.

Definition at line 47 of file RFriendInfo.hxx.

fNEntriesPerTreePerFriend

std::vector<std::vector<Long64_t> > ROOT::TreeUtils::RFriendInfo::fNEntriesPerTreePerFriend

Number of entries contained in each tree of each friend.

The outer dimension of the vector tracks the n-th friend tree/chain, the inner dimension tracks the number of entries of each tree in the current friend.

Definition at line 66 of file RFriendInfo.hxx.

fTreeIndexInfos

std::vector<std::unique_ptr<TVirtualIndex> > ROOT::TreeUtils::RFriendInfo::fTreeIndexInfos

Information on the friend's TTreeIndexes.

Definition at line 71 of file RFriendInfo.hxx.

Collaboration diagram for ROOT::TreeUtils::RFriendInfo:

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

• tree/tree/inc/ROOT/RFriendInfo.hxx
• tree/tree/src/RFriendInfo.cxx