Manages entry lists from different files, when they are not loaded in memory at the same time.

This entry list should only be used when processing a TChain (see TChain::SetEntryList() function). File naming convention:

by default, filename_elist.root is used, where filename is the name of the chain element.
xxx$xxx.root - $ sign is replaced by the name of the chain element If the list name is not specified (by passing filename_elist.root/listname to the TChain::SetEntryList() function, the first object of class TEntryList in the file is taken. It is assumed that there are as many lists, as there are chain elements, and they are in the same order.

If one of the list files can't be opened, or there is an error reading a list from the file, this list is skipped and the entry loop continues on the next list.

Definition at line 40 of file TEntryListFromFile.h.

Public Member Functions
	TEntryListFromFile ()

	TEntryListFromFile (const char filename, const char listname, Int_t nfiles)
	File naming convention: More...

virtual	~TEntryListFromFile ()
	d-tor More...

virtual void	Add (const TEntryList *)
	Add 2 entry lists. More...

virtual Int_t	Contains (Long64_t, TTree *)

virtual Bool_t	Enter (Long64_t, TTree *)
	Add entry #entry to the list. More...

virtual TEntryList *	GetCurrentList () const

virtual Long64_t	GetEntries ()
	Returns the total number of entries in the list. More...

virtual Long64_t	GetEntriesFast () const

virtual Long64_t	GetEntry (Int_t index)
	Returns entry #index See also Next() for a faster alternative. More...

virtual Long64_t	GetEntryAndTree (Int_t index, Int_t &treenum)
	Return the entry corresponding to the index parameter and the number of the tree, where this entry is. More...

virtual TEntryList *	GetEntryList (const char , const char , Option_t *)
	Return the entry list, corresponding to treename and filename By default, the filename is first tried as is, and then, if the corresponding list is not found, the filename is expanded to the absolute path, and compared again. More...

virtual const char *	GetFileName () const

virtual Long64_t	GetN () const

virtual const char *	GetTreeName () const

virtual Int_t	GetTreeNumber () const

virtual Int_t	LoadList (Int_t listnumber)
	Loads the list #listnumber This is the only function that can modify fCurrent and fFile data members. More...

virtual Int_t	Merge (TCollection *)
	Merge this list with the lists from the collection. More...

virtual Long64_t	Next ()
	Returns the next entry in the list. More...

virtual void	OptimizeStorage ()
	Checks if the array representation is more economical and if so, switches to it. More...

virtual void	Print (const Option_t *option="") const
	Print info about this list. More...

virtual Bool_t	Remove (Long64_t, TTree *)
	Remove entry #entry from the list. More...

virtual void	SetFileNames (TObjArray *names)

virtual void	SetNFiles (Int_t nfiles)

virtual void	SetTree (const char , const char )
	If a list for a tree with such name and filename exists, sets it as the current sublist If not, creates this list and sets it as the current sublist. More...

virtual void	SetTree (const TTree *)
	If a list for a tree with such name and filename exists, sets it as the current sublist If not, creates this list and sets it as the current sublist The name of the file, where the tree is, is taken as `tree->GetTree()->GetCurrentFile()->GetName()`, and then expanded either to the absolute path, or to full url. More...

virtual void	SetTreeNumber (Int_t index)

virtual void	Subtract (const TEntryList *)
	Remove all the entries of this entry list, that are contained in elist. More...

Public Member Functions inherited from TEntryList
	TEntryList ()
	default c-tor More...

	TEntryList (const char name, const char title)
	c-tor with name and title More...

	TEntryList (const char name, const char title, const char treename, const char filename)
	c-tor with name and title, which also sets the treename and the filename More...

	TEntryList (const char name, const char title, const TTree *tree)
	constructor with name and title, which also sets the tree More...

	TEntryList (const TEntryList &elist)
	copy c-tor More...

	TEntryList (const TTree *tree)
	c-tor, which sets the tree More...

virtual	~TEntryList ()
	Destructor. More...

virtual void	Add (const TEntryList *elist)
	Add 2 entry lists. More...

virtual Int_t	Contains (Long64_t entry, TTree *tree=0)

virtual void	DirectoryAutoAdd (TDirectory *)
	Called by TKey and others to automatically add us to a directory when we are read from a file. More...

virtual Bool_t	Enter (Long64_t entry, TTree *tree=0)
	Add entry #entry to the list. More...

virtual TEntryList *	GetCurrentList () const

virtual TDirectory *	GetDirectory () const

virtual Long64_t	GetEntriesToProcess () const

virtual Long64_t	GetEntry (Int_t index)
	Return the number of the entry #index of this TEntryList in the TTree or TChain See also Next(). More...

virtual Long64_t	GetEntryAndTree (Int_t index, Int_t &treenum)
	Return the index of "index"-th non-zero entry in the TTree or TChain and the # of the corresponding tree in the chain. More...

virtual TEntryList *	GetEntryList (const char treename, const char filename, Option_t *opt="")
	Return the entry list, corresponding to treename and filename By default, the filename is first tried as is, and then, if the corresponding list is not found, the filename is expanded to the absolute path, and compared again. More...

virtual const char *	GetFileName () const

virtual TList *	GetLists () const

virtual Long64_t	GetN () const

virtual Bool_t	GetReapplyCut () const

virtual const char *	GetTreeName () const

virtual Int_t	GetTreeNumber () const

Bool_t	IsValid () const

virtual Int_t	Merge (TCollection *list)
	Merge this list with the lists from the collection. More...

virtual Long64_t	Next ()
	Return the next non-zero entry index (next after fLastIndexQueried) this function is faster than GetEntry() More...

virtual void	OptimizeStorage ()
	Checks if the array representation is more economical and if so, switches to it. More...

virtual void	Print (const Option_t *option="") const
	Print this list. More...

virtual Int_t	RelocatePaths (const char newloc, const char oldloc=0)
	Relocate the file paths. More...

virtual Bool_t	Remove (Long64_t entry, TTree *tree=0)
	Remove entry #entry from the list. More...

virtual void	Reset ()
	Reset this list. More...

virtual Int_t	ScanPaths (TList *roots, Bool_t notify=kTRUE)
	Scan the paths to find the common roots. More...

virtual void	SetDirectory (TDirectory *dir)
	Add reference to directory dir. dir can be 0. More...

virtual void	SetEntriesToProcess (Long64_t nen)

virtual void	SetFileName (const char *filename)

virtual void	SetReapplyCut (Bool_t apply=kFALSE)

virtual void	SetShift (Bool_t shift)

virtual void	SetTree (const char treename, const char filename)
	If a list for a tree with such name and filename exists, sets it as the current sublist If not, creates this list and sets it as the current sublist. More...

virtual void	SetTree (const TTree *tree)
	If a list for a tree with such name and filename exists, sets it as the current sublist If not, creates this list and sets it as the current sublist The name of the file, where the tree is, is taken as `tree->GetTree()->GetCurrentFile()->GetName()`, and then expanded either to the absolute path, or to full url. More...

virtual void	SetTreeName (const char *treename)

virtual void	SetTreeNumber (Int_t index)

virtual void	Subtract (const TEntryList *elist)
	Remove all the entries of this entry list, that are contained in elist. More...

Public Member Functions inherited from TNamed
	TNamed ()

	TNamed (const char name, const char title)

	TNamed (const TNamed &named)
	TNamed copy ctor. More...

	TNamed (const TString &name, const TString &title)

virtual	~TNamed ()
	TNamed destructor. More...

virtual void	Clear (Option_t *option="")
	Set name and title to empty strings (""). More...

virtual TObject *	Clone (const char *newname="") const
	Make a clone of an object using the Streamer facility. More...

virtual Int_t	Compare (const TObject *obj) const
	Compare two TNamed objects. More...

virtual void	Copy (TObject &named) const
	Copy this to obj. More...

virtual void	FillBuffer (char *&buffer)
	Encode TNamed into output buffer. More...

virtual const char *	GetName () const
	Returns name of object. More...

virtual const char *	GetTitle () const
	Returns title of object. More...

virtual ULong_t	Hash () const
	Return hash value for this object. More...

virtual Bool_t	IsSortable () const

virtual void	ls (Option_t *option="") const
	List TNamed name and title. More...

TNamed &	operator= (const TNamed &rhs)
	TNamed assignment operator. More...

virtual void	Print (Option_t *option="") const
	Print TNamed name and title. More...

virtual void	SetName (const char *name)
	Set the name of the TNamed. More...

virtual void	SetNameTitle (const char name, const char title)
	Set all the TNamed parameters (name and title). More...

virtual void	SetTitle (const char *title="")
	Set the title of the TNamed. More...

virtual Int_t	Sizeof () const
	Return size of the TNamed part of the TObject. More...

Public Member Functions inherited from TObject
	TObject ()
	TObject constructor. More...

	TObject (const TObject &object)
	TObject copy ctor. More...

virtual	~TObject ()
	TObject destructor. More...

void	AbstractMethod (const char *method) const
	Use this method to implement an "abstract" method that you don't want to leave purely abstract. More...

virtual void	AppendPad (Option_t *option="")
	Append graphics object to current pad. More...

virtual void	Browse (TBrowser *b)
	Browse object. May be overridden for another default action. More...

ULong_t	CheckedHash ()
	Check and record whether this class has a consistent Hash/RecursiveRemove setup (*) and then return the regular Hash value for this object. More...

virtual const char *	ClassName () const
	Returns name of class to which the object belongs. More...

virtual void	Clear (Option_t *="")

virtual TObject *	Clone (const char *newname="") const
	Make a clone of an object using the Streamer facility. More...

virtual Int_t	Compare (const TObject *obj) const
	Compare abstract method. More...

virtual void	Copy (TObject &object) const
	Copy this to obj. More...

virtual void	Delete (Option_t *option="")
	Delete this object. More...

virtual Int_t	DistancetoPrimitive (Int_t px, Int_t py)
	Computes distance from point (px,py) to the object. More...

virtual void	Draw (Option_t *option="")
	Default Draw method for all objects. More...

virtual void	DrawClass () const
	Draw class inheritance tree of the class to which this object belongs. More...

virtual TObject *	DrawClone (Option_t *option="") const
	Draw a clone of this object in the current selected pad for instance with: `gROOT->SetSelectedPad(gPad)`. More...

virtual void	Dump () const
	Dump contents of object on stdout. More...

virtual void	Error (const char method, const char msgfmt,...) const
	Issue error message. More...

virtual void	Execute (const char method, const char params, Int_t *error=0)
	Execute method on this object with the given parameter string, e.g. More...

virtual void	Execute (TMethod method, TObjArray params, Int_t *error=0)
	Execute method on this object with parameters stored in the TObjArray. More...

virtual void	ExecuteEvent (Int_t event, Int_t px, Int_t py)
	Execute action corresponding to an event at (px,py). More...

virtual void	Fatal (const char method, const char msgfmt,...) const
	Issue fatal error message. More...

virtual TObject *	FindObject (const char *name) const
	Must be redefined in derived classes. More...

virtual TObject *	FindObject (const TObject *obj) const
	Must be redefined in derived classes. More...

virtual Option_t *	GetDrawOption () const
	Get option used by the graphics system to draw this object. More...

virtual const char *	GetIconName () const
	Returns mime type name of object. More...

virtual const char *	GetName () const
	Returns name of object. More...

virtual char *	GetObjectInfo (Int_t px, Int_t py) const
	Returns string containing info about the object at position (px,py). More...

virtual Option_t *	GetOption () const

virtual const char *	GetTitle () const
	Returns title of object. More...

virtual UInt_t	GetUniqueID () const
	Return the unique object id. More...

virtual Bool_t	HandleTimer (TTimer *timer)
	Execute action in response of a timer timing out. More...

virtual ULong_t	Hash () const
	Return hash value for this object. More...

Bool_t	HasInconsistentHash () const
	Return true is the type of this object is known to have an inconsistent setup for Hash and RecursiveRemove (i.e. More...

virtual void	Info (const char method, const char msgfmt,...) const
	Issue info message. More...

virtual Bool_t	InheritsFrom (const char *classname) const
	Returns kTRUE if object inherits from class "classname". More...

virtual Bool_t	InheritsFrom (const TClass *cl) const
	Returns kTRUE if object inherits from TClass cl. More...

virtual void	Inspect () const
	Dump contents of this object in a graphics canvas. More...

void	InvertBit (UInt_t f)

virtual Bool_t	IsEqual (const TObject *obj) const
	Default equal comparison (objects are equal if they have the same address in memory). More...

virtual Bool_t	IsFolder () const
	Returns kTRUE in case object contains browsable objects (like containers or lists of other objects). More...

R__ALWAYS_INLINE Bool_t	IsOnHeap () const

virtual Bool_t	IsSortable () const

R__ALWAYS_INLINE Bool_t	IsZombie () const

virtual void	ls (Option_t *option="") const
	The ls function lists the contents of a class on stdout. More...

void	MayNotUse (const char *method) const
	Use this method to signal that a method (defined in a base class) may not be called in a derived class (in principle against good design since a child class should not provide less functionality than its parent, however, sometimes it is necessary). More...

virtual Bool_t	Notify ()
	This method must be overridden to handle object notification. More...

void	Obsolete (const char method, const char asOfVers, const char *removedFromVers) const
	Use this method to declare a method obsolete. More...

void	operator delete (void *ptr)
	Operator delete. More...

void	operator delete[] (void *ptr)
	Operator delete []. More...

void *	operator new (size_t sz)

void *	operator new (size_t sz, void *vp)

void *	operator new[] (size_t sz)

void *	operator new[] (size_t sz, void *vp)

TObject &	operator= (const TObject &rhs)
	TObject assignment operator. More...

virtual void	Paint (Option_t *option="")
	This method must be overridden if a class wants to paint itself. More...

virtual void	Pop ()
	Pop on object drawn in a pad to the top of the display list. More...

virtual void	Print (Option_t *option="") const
	This method must be overridden when a class wants to print itself. More...

virtual Int_t	Read (const char *name)
	Read contents of object with specified name from the current directory. More...

virtual void	RecursiveRemove (TObject *obj)
	Recursively remove this object from a list. More...

void	ResetBit (UInt_t f)

virtual void	SaveAs (const char filename="", Option_t option="") const
	Save this object in the file specified by filename. More...

virtual void	SavePrimitive (std::ostream &out, Option_t *option="")
	Save a primitive as a C++ statement(s) on output stream "out". More...

void	SetBit (UInt_t f)

void	SetBit (UInt_t f, Bool_t set)
	Set or unset the user status bits as specified in f. More...

virtual void	SetDrawOption (Option_t *option="")
	Set drawing option for object. More...

virtual void	SetUniqueID (UInt_t uid)
	Set the unique object id. More...

virtual void	SysError (const char method, const char msgfmt,...) const
	Issue system error message. More...

R__ALWAYS_INLINE Bool_t	TestBit (UInt_t f) const

Int_t	TestBits (UInt_t f) const

virtual void	UseCurrentStyle ()
	Set current style settings in this object This function is called when either TCanvas::UseCurrentStyle or TROOT::ForceStyle have been invoked. More...

virtual void	Warning (const char method, const char msgfmt,...) const
	Issue warning message. More...

virtual Int_t	Write (const char *name=0, Int_t option=0, Int_t bufsize=0)
	Write this object to the current directory. More...

virtual Int_t	Write (const char *name=0, Int_t option=0, Int_t bufsize=0) const
	Write this object to the current directory. More...

Protected Attributes
TFile *	fFile
	currently open file fCurrent points to the currently open list More...

TObjArray *	fFileNames
	! points to the fFiles data member of the corresponding chain More...

TString	fListFileName
	from this string names of all files can be found More...

TString	fListName
	name of the list More...

Long64_t *	fListOffset
	[fNFiles] numbers of entries in ind. lists More...

Int_t	fNFiles
	total number of files More...

Protected Attributes inherited from TEntryList
TObjArray *	fBlocks
	blocks with indices of passing events (TEntryListBlocks) More...

TEntryList *	fCurrent
	! currently filled entry list More...

TDirectory *	fDirectory
	! Pointer to directory holding this tree More...

Long64_t	fEntriesToProcess
	used on proof to set the number of entries to process in a packet More...

TString	fFileName
	name of the file, where the tree is More...

Long64_t	fLastIndexQueried
	! used to optimize GetEntry() function from a loop More...

Long64_t	fLastIndexReturned
	! used to optimize GetEntry() function from a loop More...

TList *	fLists
	a list of underlying entry lists for each tree of a chain More...

Long64_t	fN
	number of entries in the list More...

Int_t	fNBlocks
	number of TEntryListBlocks More...

Bool_t	fReapply
	If true, TTree::Draw will 'reapply' the original cut. More...

Bool_t	fShift
	! true when some sub-lists don't correspond to trees (when the entry list is used as input in TChain) More...

ULong_t	fStringHash
	! Hash value of a string of treename and filename More...

TString	fTreeName
	name of the tree More...

Int_t	fTreeNumber
	! the index of the tree in the chain (used when the entry list is used as input (TTree::SetEntryList()) More...

Protected Attributes inherited from TNamed
TString	fName

TString	fTitle

Static Protected Attributes
static constexpr auto	kBigNumber = std::numeric_limits<Long64_t>::max()

Private Member Functions
	TEntryListFromFile (const TEntryListFromFile &)

TEntryListFromFile &	operator= (const TEntryListFromFile &)

Additional Inherited Members
Public Types inherited from TEntryList
enum	{ kBlockSize = 64000 }

Public Types inherited from TObject
enum	{ kIsOnHeap = 0x01000000 , kNotDeleted = 0x02000000 , kZombie = 0x04000000 , kInconsistent = 0x08000000 , kBitMask = 0x00ffffff }

enum	{ kSingleKey = BIT(0) , kOverwrite = BIT(1) , kWriteDelete = BIT(2) }

enum	EDeprecatedStatusBits { kObjInCanvas = BIT(3) }

enum	EStatusBits { kCanDelete = BIT(0) , kMustCleanup = BIT(3) , kIsReferenced = BIT(4) , kHasUUID = BIT(5) , kCannotPick = BIT(6) , kNoContextMenu = BIT(8) , kInvalidObject = BIT(13) }

Static Public Member Functions inherited from TEntryList
static Int_t	Relocate (const char fn, const char newroot, const char oldroot=0, const char enlnm=0)
	Relocate entry list 'enlnm' in file 'fn' replacing 'oldroot' with 'newroot' in filenames. More...

static Int_t	Scan (const char fn, TList roots)
	Scan TEntryList in 'fn' to find the common parts of paths. More...

Static Public Member Functions inherited from TObject
static Long_t	GetDtorOnly ()
	Return destructor only flag. More...

static Bool_t	GetObjectStat ()
	Get status of object stat flag. More...

static void	SetDtorOnly (void *obj)
	Set destructor only flag. More...

static void	SetObjectStat (Bool_t stat)
	Turn on/off tracking of objects in the TObjectTable. More...

Protected Member Functions inherited from TEntryList
void	GetFileName (const char filename, TString &fn, Bool_t =0)
	To be able to re-localize the entry-list we identify the file by just the name and the anchor, i.e. More...

Protected Member Functions inherited from TObject
virtual void	DoError (int level, const char location, const char fmt, va_list va) const
	Interface to ErrorHandler (protected). More...

void	MakeZombie ()

#include <TEntryListFromFile.h>

Inheritance diagram for TEntryListFromFile:

[legend]

Constructor & Destructor Documentation

◆ TEntryListFromFile() [1/3]

TEntryListFromFile::TEntryListFromFile ( const TEntryListFromFile & )

private

◆ TEntryListFromFile() [2/3]

TEntryListFromFile::TEntryListFromFile ( )

Definition at line 44 of file TEntryListFromFile.cxx.

◆ TEntryListFromFile() [3/3]

TEntryListFromFile::TEntryListFromFile	(	const char *	filename,
		const char *	listname,
		Int_t	nfiles
	)

File naming convention:

by default, filename_elist.root is used, where filename is the name of the chain element
xxx$xxx.root - $ sign is replaced by the name of the chain element

The TObjArray of chain elements is set by the TEntryListFromFile::SetFileNames() function.

If the list name is not specified, the first object of class TEntryList in the file is taken.

nfiles is the total number of files to process

Definition at line 65 of file TEntryListFromFile.cxx.

◆ ~TEntryListFromFile()

TEntryListFromFile::~TEntryListFromFile ( )

virtual

d-tor

Definition at line 79 of file TEntryListFromFile.cxx.

Member Function Documentation

◆ Add()

virtual void TEntryListFromFile::Add ( const TEntryList * elist )

inlinevirtual

Add 2 entry lists.

Reimplemented from TEntryList.

Definition at line 63 of file TEntryListFromFile.h.

◆ Contains()

virtual Int_t TEntryListFromFile::Contains	(	Long64_t	entry,
		TTree *	tree
	)

inlinevirtual

When tree = 0, returns from the current list
When tree != 0, finds the list, corresponding to this tree
When tree is a chain, the entry is assumed to be global index and the local entry is recomputed from the treeoffset information of the chain

Reimplemented from TEntryList.

Definition at line 64 of file TEntryListFromFile.h.

◆ Enter()

virtual Bool_t TEntryListFromFile::Enter	(	Long64_t	entry,
		TTree *	tree
	)

inlinevirtual

Add entry #entry to the list.

When tree = 0, adds to the current list
When tree != 0, finds the list, corresponding to this tree
When tree is a chain, the entry is assumed to be global index and the local entry is recomputed from the treeoffset information of the chain

Reimplemented from TEntryList.

Definition at line 65 of file TEntryListFromFile.h.

◆ GetCurrentList()

virtual TEntryList * TEntryListFromFile::GetCurrentList ( ) const

inlinevirtual

Reimplemented from TEntryList.

Definition at line 66 of file TEntryListFromFile.h.

◆ GetEntries()

Long64_t TEntryListFromFile::GetEntries ( )

virtual

Returns the total number of entries in the list.

If some lists have not been loaded, loads them.

Definition at line 167 of file TEntryListFromFile.cxx.

◆ GetEntriesFast()

virtual Long64_t TEntryListFromFile::GetEntriesFast ( ) const

inlinevirtual

Definition at line 72 of file TEntryListFromFile.h.

◆ GetEntry()

Long64_t TEntryListFromFile::GetEntry ( Int_t index )

virtual

Returns entry #index See also Next() for a faster alternative.

Reimplemented from TEntryList.

Definition at line 91 of file TEntryListFromFile.cxx.

◆ GetEntryAndTree()

Long64_t TEntryListFromFile::GetEntryAndTree	(	Int_t	index,
		Int_t &	treenum
	)

virtual

Return the entry corresponding to the index parameter and the number of the tree, where this entry is.

Reimplemented from TEntryList.

Definition at line 156 of file TEntryListFromFile.cxx.

◆ GetEntryList()

virtual TEntryList * TEntryListFromFile::GetEntryList	(	const char *	treename,
		const char *	filename,
		Option_t *	opt
	)

inlinevirtual

Return the entry list, corresponding to treename and filename By default, the filename is first tried as is, and then, if the corresponding list is not found, the filename is expanded to the absolute path, and compared again.

To avoid it, use option "ne"

Reimplemented from TEntryList.

Definition at line 67 of file TEntryListFromFile.h.

◆ GetFileName()

virtual const char * TEntryListFromFile::GetFileName ( ) const

inlinevirtual

Reimplemented from TEntryList.

Definition at line 76 of file TEntryListFromFile.h.

◆ GetN()

virtual Long64_t TEntryListFromFile::GetN ( ) const

inlinevirtual

Reimplemented from TEntryList.

Definition at line 74 of file TEntryListFromFile.h.

◆ GetTreeName()

virtual const char * TEntryListFromFile::GetTreeName ( ) const

inlinevirtual

Reimplemented from TEntryList.

Definition at line 75 of file TEntryListFromFile.h.

◆ GetTreeNumber()

virtual Int_t TEntryListFromFile::GetTreeNumber ( ) const

inlinevirtual

Reimplemented from TEntryList.

Definition at line 77 of file TEntryListFromFile.h.

◆ LoadList()

Int_t TEntryListFromFile::LoadList ( Int_t listnumber )

virtual

Loads the list #listnumber This is the only function that can modify fCurrent and fFile data members.

Definition at line 232 of file TEntryListFromFile.cxx.

◆ Merge()

virtual Int_t TEntryListFromFile::Merge ( TCollection * list )

inlinevirtual

Merge this list with the lists from the collection.

Reimplemented from TEntryList.

Definition at line 81 of file TEntryListFromFile.h.

◆ Next()

Long64_t TEntryListFromFile::Next ( )

virtual

Returns the next entry in the list.

Faster than GetEntry()

Reimplemented from TEntryList.

Definition at line 185 of file TEntryListFromFile.cxx.

◆ operator=()

TEntryListFromFile & TEntryListFromFile::operator= ( const TEntryListFromFile & )

private

◆ OptimizeStorage()

virtual void TEntryListFromFile::OptimizeStorage ( )

inlinevirtual

Checks if the array representation is more economical and if so, switches to it.

Reimplemented from TEntryList.

Definition at line 84 of file TEntryListFromFile.h.

◆ Print()

void TEntryListFromFile::Print ( const Option_t * option = "" ) const

virtual

Print info about this list.

Reimplemented from TEntryList.

Definition at line 306 of file TEntryListFromFile.cxx.

◆ Remove()

virtual Bool_t TEntryListFromFile::Remove	(	Long64_t	entry,
		TTree *	tree
	)

inlinevirtual

Remove entry #entry from the list.

When tree = 0, removes from the current list
When tree != 0, finds the list, corresponding to this tree
When tree is a chain, the entry is assumed to be global index and the local entry is recomputed from the treeoffset information of the chain

Reimplemented from TEntryList.

Definition at line 85 of file TEntryListFromFile.h.

◆ SetFileNames()

virtual void TEntryListFromFile::SetFileNames ( TObjArray * names )

inlinevirtual

Definition at line 91 of file TEntryListFromFile.h.

◆ SetNFiles()

virtual void TEntryListFromFile::SetNFiles ( Int_t nfiles )

inlinevirtual

Definition at line 93 of file TEntryListFromFile.h.

◆ SetTree() [1/2]

virtual void TEntryListFromFile::SetTree	(	const char *	treename,
		const char *	filename
	)

inlinevirtual

If a list for a tree with such name and filename exists, sets it as the current sublist If not, creates this list and sets it as the current sublist.

! the filename is taken as provided, no extensions to full path or url !

Reimplemented from TEntryList.

Definition at line 90 of file TEntryListFromFile.h.

◆ SetTree() [2/2]

virtual void TEntryListFromFile::SetTree ( const TTree * tree )

inlinevirtual

If a list for a tree with such name and filename exists, sets it as the current sublist If not, creates this list and sets it as the current sublist The name of the file, where the tree is, is taken as tree->GetTree()->GetCurrentFile()->GetName(), and then expanded either to the absolute path, or to full url.

If, for some reason, you want to provide the filename in a different format, use SetTree(const char *treename, const char *filename), where the filename is taken "as is".

Reimplemented from TEntryList.

Definition at line 89 of file TEntryListFromFile.h.

◆ SetTreeNumber()

virtual void TEntryListFromFile::SetTreeNumber ( Int_t index )

inlinevirtual

Reimplemented from TEntryList.

Definition at line 92 of file TEntryListFromFile.h.

◆ Subtract()

virtual void TEntryListFromFile::Subtract ( const TEntryList * elist )

inlinevirtual

Remove all the entries of this entry list, that are contained in elist.

Reimplemented from TEntryList.

Definition at line 94 of file TEntryListFromFile.h.

Member Data Documentation

◆ fFile

TFile* TEntryListFromFile::fFile

protected

currently open file fCurrent points to the currently open list

Definition at line 47 of file TEntryListFromFile.h.

◆ fFileNames

TObjArray* TEntryListFromFile::fFileNames

protected

! points to the fFiles data member of the corresponding chain

Definition at line 49 of file TEntryListFromFile.h.

◆ fListFileName

TString TEntryListFromFile::fListFileName

protected

from this string names of all files can be found

Definition at line 43 of file TEntryListFromFile.h.

◆ fListName

TString TEntryListFromFile::fListName

protected

name of the list

Definition at line 44 of file TEntryListFromFile.h.

◆ fListOffset

Long64_t* TEntryListFromFile::fListOffset

protected

[fNFiles] numbers of entries in ind. lists

Definition at line 46 of file TEntryListFromFile.h.

◆ fNFiles

Int_t TEntryListFromFile::fNFiles

protected

total number of files

Definition at line 45 of file TEntryListFromFile.h.

◆ kBigNumber

constexpr auto TEntryListFromFile::kBigNumber = std::numeric_limits<Long64_t>::max()

staticconstexprprotected

Definition at line 52 of file TEntryListFromFile.h.

Libraries for TEntryListFromFile:

[legend]

Public Member Functions

Protected Attributes

Static Protected Attributes

Private Member Functions

Additional Inherited Members

Constructor & Destructor Documentation

◆ TEntryListFromFile() [1/3]

◆ TEntryListFromFile() [2/3]

◆ TEntryListFromFile() [3/3]

◆ ~TEntryListFromFile()

Member Function Documentation

◆ Add()

◆ Contains()

◆ Enter()

◆ GetCurrentList()

◆ GetEntries()

◆ GetEntriesFast()

◆ GetEntry()

◆ GetEntryAndTree()

◆ GetEntryList()

◆ GetFileName()

◆ GetN()

◆ GetTreeName()

◆ GetTreeNumber()

◆ LoadList()

◆ Merge()

◆ Next()

◆ operator=()

◆ OptimizeStorage()

◆ Print()

◆ Remove()

◆ SetFileNames()

◆ SetNFiles()

◆ SetTree() [1/2]

◆ SetTree() [2/2]

◆ SetTreeNumber()

◆ Subtract()

Member Data Documentation

◆ fFile

◆ fFileNames

◆ fListFileName

◆ fListName

◆ fListOffset

◆ fNFiles

◆ kBigNumber