QChain Class Reference

TChain used in diana. More...

Inheritance diagram for QChain:

Public Member Functions
	QChain ()
	constructor More...
	QChain (const char *treeName)
	constructor with treeName More...
virtual	~QChain ()
	destructor More...
Int_t	Add (const char *filename, Long64_t nentries=kBigNumber)
const std::string &	GetSoftwareRevision () const
const std::string &	GetVersionTag () const
void	ResetLists ()
TObjArray *	GetListOfAllLeaves ()
TObjArray *	GetListOfAllBranches ()
TList *	GetListOfAllAliases ()
std::vector< QChain * >	GetFriends ()

Private Member Functions
	ClassDef (QChain, 4)

Private Attributes
std::string	fSoftwareRevision
	software version of first qtree More...
std::string	fVersionTag
std::vector< QChain * >	fFriends
	friend QChains More...
TObjArray *	fAllLeaves
	list of all leaves More...
TObjArray *	fAllBranches
	list of all branches More...
TList *	fAllAliases
	list of all aliases More...

Detailed Description

TChain used in diana.

Author

Marco Vignati

This class behaves exactly as a TChain and must be used in place of TChain in diana I/O. It handles QTrees named "qtree". It overloads the Add() method that handles file lists (.list files) and automatically create friend QChains of friend trees found in input files. Use this class also to load a single QTree from a file, so that its friend are loaded too.

Examples

ScanEvents.C.

Definition at line 22 of file QChain.hh.

Constructor & Destructor Documentation

QChain() [1/2]

QChain::QChain

(

)

constructor

Referenced by Add().

QChain() [2/2]

QChain::QChain

(

const char *

treeName

)

constructor with treeName

Definition at line 23 of file QChain.cc.

References fAllAliases, fAllBranches, fAllLeaves, fSoftwareRevision, and fVersionTag.

~QChain()

QChain::~QChain ( )

virtual

destructor

Definition at line 32 of file QChain.cc.

References fFriends, and ResetLists().

Member Function Documentation

Add()

Int_t QChain::Add	(	const char *	filename,
		Long64_t	nentries = kBigNumber
	)

Examples

ScanEvents.C.

Definition at line 50 of file QChain.cc.

References Add(), fFriends, fSoftwareRevision, fVersionTag, QBaseTree::GetSoftwareRevision(), QBaseTree::GetVersionTag(), QChain(), QFileList::Read(), and ResetLists().

Referenced by Add(), and ScanEvents().

ClassDef()

QChain::ClassDef ( QChain  , 4    )

private

GetFriends()

std::vector<QChain*> QChain::GetFriends ( )

inline

Definition at line 55 of file QChain.hh.

References fFriends.

GetListOfAllAliases()

TList * QChain::GetListOfAllAliases

(

)

Definition at line 148 of file QChain.cc.

References fAllAliases, and fFriends.

Referenced by QGFileHandler::GetSetOfAliases(), and QGFileHandler::SetLowestStartTimeUnix().

GetListOfAllBranches()

TObjArray * QChain::GetListOfAllBranches

(

)

Definition at line 178 of file QChain.cc.

References fAllBranches, and fFriends.

Referenced by QRootFileReaderBase::GetBranches().

GetListOfAllLeaves()

TObjArray * QChain::GetListOfAllLeaves

(

)

Definition at line 122 of file QChain.cc.

References fAllLeaves, and fFriends.

Referenced by QGFileHandler::GetSetOfLeaves(), and QGFileHandler::GetSetOfQVectorLeaves().

GetSoftwareRevision()

const std::string& QChain::GetSoftwareRevision ( ) const

inline

Definition at line 39 of file QChain.hh.

References fSoftwareRevision.

GetVersionTag()

const std::string& QChain::GetVersionTag ( ) const

inline

Definition at line 42 of file QChain.hh.

References fVersionTag.

ResetLists()

void QChain::ResetLists

(

)

Definition at line 40 of file QChain.cc.

References fAllAliases, fAllBranches, and fAllLeaves.

Referenced by Add(), QRootFileReaderBase::GetBranches(), and ~QChain().

Member Data Documentation

fAllAliases

TList* QChain::fAllAliases

private

list of all aliases

Definition at line 72 of file QChain.hh.

Referenced by GetListOfAllAliases(), QChain(), and ResetLists().

fAllBranches

TObjArray* QChain::fAllBranches

private

list of all branches

Definition at line 69 of file QChain.hh.

Referenced by GetListOfAllBranches(), QChain(), and ResetLists().

fAllLeaves

TObjArray* QChain::fAllLeaves

private

list of all leaves

Definition at line 66 of file QChain.hh.

Referenced by GetListOfAllLeaves(), QChain(), and ResetLists().

fFriends

std::vector<QChain*> QChain::fFriends

private

friend QChains

Definition at line 63 of file QChain.hh.

Referenced by Add(), GetFriends(), GetListOfAllAliases(), GetListOfAllBranches(), GetListOfAllLeaves(), and ~QChain().

fSoftwareRevision

std::string QChain::fSoftwareRevision

private

software version of first qtree

Definition at line 59 of file QChain.hh.

Referenced by Add(), GetSoftwareRevision(), and QChain().

fVersionTag

std::string QChain::fVersionTag

private

Definition at line 60 of file QChain.hh.

Referenced by Add(), GetVersionTag(), and QChain().

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

• pkg/qroot/QChain.hh
• pkg/qroot/QChain.cc