A list of entries and subentries in a TTree or TChain.

TEntryListArray is an extension of TEntryList, used to hold selected entries and subentries (sublists) for when the user has a TTree with containers (vectors, arrays, ...).

Usage with TTree::Draw to select entries and subentries

### To fill a list elist

tree->Draw(">> elist", "x > 0", "entrylistarray");`

### To use a list to select entries and subentries

tree->SetEntryList(elist);
tree->Draw("y");
tree->Draw("z");

Its main purpose is to improve the performance of a code that needs to apply complex cuts on TTree::Draw multiple times. After the first call above to TTree::Draw, a TEntryListArray is created and filled with the entries and the indices of the arrays that satisfied the selection cut (x > 0). In the subsequent calls to TTree::Draw, only these entries / subentries are used to fill histograms.

About the class

The class derives from TEntryList and can be used basically in the same way. This same class is used to keep entries and subentries, so there are two types of TEntryListArray's:

The ones that only hold subentries
- fEntry is set to the entry# for which the subentries correspond
- fSubLists must be 0
The ones that hold entries and eventually lists with subentries in fSubLists.
- fEntry = -1 for those
- If there are no sublists for a given entry, all the subentries will be used in the selection

Additions with respect to TEntryList

Data members:
- fSubLists: a container to hold the sublists
- fEntry: the entry number if the list is used to hold subentries
- fLastSubListQueried and fSubListIter: a pointer to the last sublist queried and an iterator to resume the loop from the last sublist queried (to speed up selection and insertion in TTree::Draw)
Public methods:
- Contains, Enter and Remove with subentry as argument
- GetSubListForEntry: to return the sublist corresponding to the given entry
Protected methods:
- AddEntriesAndSubLists: called by Add when adding two TEntryList arrays with sublists
- ConvertToTEntryListArray: convert TEntryList to TEntryListArray
- RemoveSubList: to remove the given sublist
- RemoveSubListForEntry: to remove the sublist corresponding to the given entry
- SetEntry: to get / set a sublist for the given entry

Definition at line 26 of file TEntryListArray.h.

Public Member Functions
	TEntryListArray ()
	Default c-tor. More...

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

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

	TEntryListArray (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...

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

	TEntryListArray (const TEntryListArray &elist)
	Copy c-tor. More...

	TEntryListArray (const TEntryList &elist)
	c-tor, from TEntryList More...

	TEntryListArray ()

	TEntryListArray (const char name, const char title)

	TEntryListArray (const char name, const char title, const TTree *tree)

	TEntryListArray (const char name, const char title, const char treename, const char filename)

	TEntryListArray (const TTree *tree)

	TEntryListArray (const TEntryListArray &elist)

	TEntryListArray (const TEntryList &elist)

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

virtual	~TEntryListArray ()

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

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

virtual Int_t	Contains (Long64_t entry, TTree *tree, Long64_t subentry)

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

virtual Int_t	Contains (Long64_t entry, TTree *tree, Long64_t subentry)

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

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

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

virtual Bool_t	Enter (Long64_t entry, TTree *tree, Long64_t subentry)

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

virtual TEntryListArray *	GetSubListForEntry (Long64_t entry, TTree *tree=0)
	Return the list holding the subentries for the given entry or 0. More...

virtual TEntryListArray *	GetSubListForEntry (Long64_t entry, TTree *tree=0)

virtual TList *	GetSubLists () const

virtual TList *	GetSubLists () const

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

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

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

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

virtual Bool_t	Remove (Long64_t entry, TTree *tree, Long64_t subentry)

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

virtual void	Reset ()
	Reset all entries and remove all sublists. More...

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

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

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 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 TTree *tree)
	constructor with name and title, which also sets the tree 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 TTree *tree)
	c-tor, which sets the tree More...

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

virtual	~TEntryList ()
	Destructor. More...

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 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 Int_t	RelocatePaths (const char newloc, const char oldloc=0)
	Relocate the file paths. 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	SetTreeName (const char *treename)

virtual void	SetTreeNumber (Int_t index)

Public Member Functions inherited from TNamed
	TNamed ()

	TNamed (const char name, const char title)

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

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

virtual	~TNamed ()

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...

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

Bool_t	IsOnHeap () const

Bool_t	IsZombie () const

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

void	SetBit (UInt_t f)

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...

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 Member Functions
virtual void	AddEntriesAndSubLists (const TEntryList *elist)
	The method that really adds two entry lists with sublists If lists are splitted (fLists != 0), look for the ones whose trees match and call the method for those lists. More...

virtual void	AddEntriesAndSubLists (const TEntryList *elist)

virtual void	ConvertToTEntryListArray (TEntryList *e)
	Create a TEntryListArray based on the given TEntryList Called by SetTree when the given list is added to fLists Replace it by a TEntryListArray and delete the given list. More...

virtual void	ConvertToTEntryListArray (TEntryList *e)

void	Init ()
	Initialize data members, called by Reset. More...

void	Init ()
	to iterate over fSubLists and keep last one checked More...

virtual Bool_t	RemoveSubList (TEntryListArray e, TTree tree=0)
	Remove the given sublist and return true if succeeded. More...

virtual Bool_t	RemoveSubList (TEntryListArray e, TTree tree=0)

virtual Bool_t	RemoveSubListForEntry (Long64_t entry, TTree *tree=0)
	Remove the sublists for the given entry –> not being used... More...

virtual Bool_t	RemoveSubListForEntry (Long64_t entry, TTree *tree=0)

virtual TEntryListArray *	SetEntry (Long64_t entry, TTree *tree=0)
	Create a sublist for the given entry and returns it –> should be called after calling GetSubListForEntry. More...

virtual TEntryListArray *	SetEntry (Long64_t entry, TTree *tree=0)

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 ()

Protected Attributes
Long64_t	fEntry
	the entry number, when the list is used for subentries More...

TEntryListArray *	fLastSubListQueried
	! last sublist checked by GetSubListForEntry More...

TIter *	fSubListIter
	! to iterate over fSubLists and keep last one checked More...

TList *	fSubLists
	a list of underlying entry lists for each event of a TEntryList 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

Private Member Functions
TEntryListArray &	operator= (const TEntryListArray &)

TEntryListArray &	operator= (const TEntryListArray &)

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

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

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

enum	EStatusBits { kCanDelete = BIT(0), kMustCleanup = BIT(3), kObjInCanvas = 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...

#include <TEntryListArray.h>

Inheritance diagram for TEntryListArray:

[legend]

Constructor & Destructor Documentation

◆ TEntryListArray() [1/14]

TEntryListArray::TEntryListArray ( )

Default c-tor.

Definition at line 94 of file TEntryListArray.cxx.

◆ TEntryListArray() [2/14]

TEntryListArray::TEntryListArray	(	const char *	name,
		const char *	title
	)

c-tor with name and title

Definition at line 101 of file TEntryListArray.cxx.

◆ TEntryListArray() [3/14]

TEntryListArray::TEntryListArray	(	const char *	name,
		const char *	title,
		const TTree *	tree
	)

constructor with name and title, which also sets the tree

Definition at line 108 of file TEntryListArray.cxx.

◆ TEntryListArray() [4/14]

TEntryListArray::TEntryListArray	(	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

Definition at line 115 of file TEntryListArray.cxx.

◆ TEntryListArray() [5/14]

TEntryListArray::TEntryListArray ( const TTree * tree )

c-tor, which sets the tree

Definition at line 122 of file TEntryListArray.cxx.

◆ TEntryListArray() [6/14]

TEntryListArray::TEntryListArray ( const TEntryListArray & elist )

Copy c-tor.

Definition at line 129 of file TEntryListArray.cxx.

◆ TEntryListArray() [7/14]

TEntryListArray::TEntryListArray ( const TEntryList & elist )

c-tor, from TEntryList

Definition at line 138 of file TEntryListArray.cxx.

◆ ~TEntryListArray() [1/2]

TEntryListArray::~TEntryListArray ( )

virtual

d-tor

Definition at line 145 of file TEntryListArray.cxx.

◆ TEntryListArray() [8/14]

TEntryListArray::TEntryListArray ( )

◆ TEntryListArray() [9/14]

TEntryListArray::TEntryListArray	(	const char *	name,
		const char *	title
	)

◆ TEntryListArray() [10/14]

TEntryListArray::TEntryListArray	(	const char *	name,
		const char *	title,
		const TTree *	tree
	)

◆ TEntryListArray() [11/14]

TEntryListArray::TEntryListArray	(	const char *	name,
		const char *	title,
		const char *	treename,
		const char *	filename
	)

◆ TEntryListArray() [12/14]

TEntryListArray::TEntryListArray ( const TTree * tree )

◆ TEntryListArray() [13/14]

TEntryListArray::TEntryListArray ( const TEntryListArray & elist )

◆ TEntryListArray() [14/14]

TEntryListArray::TEntryListArray ( const TEntryList & elist )

◆ ~TEntryListArray() [2/2]

virtual TEntryListArray::~TEntryListArray ( )

virtual

Member Function Documentation

◆ Add() [1/2]

void TEntryListArray::Add ( const TEntryList * elist )

virtual

Add 2 entry lists.

Reimplemented from TEntryList.

Definition at line 159 of file TEntryListArray.cxx.

◆ Add() [2/2]

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

virtual

Add 2 entry lists.

Reimplemented from TEntryList.

◆ AddEntriesAndSubLists() [1/2]

void TEntryListArray::AddEntriesAndSubLists ( const TEntryList * elist )

protectedvirtual

The method that really adds two entry lists with sublists If lists are splitted (fLists != 0), look for the ones whose trees match and call the method for those lists.

Add first the sublists, and then use TEntryList::Add to deal with the entries

Definition at line 188 of file TEntryListArray.cxx.

◆ AddEntriesAndSubLists() [2/2]

virtual void TEntryListArray::AddEntriesAndSubLists ( const TEntryList * elist )

protectedvirtual

◆ Contains() [1/4]

Int_t TEntryListArray::Contains	(	Long64_t	entry,
		TTree *	tree,
		Long64_t	subentry
	)

virtual

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 When subentry != -1, return true if the enter is present and not splitted or if the subentry list is found and contains #subentry

Definition at line 270 of file TEntryListArray.cxx.

◆ Contains() [2/4]

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

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 60 of file TEntryListArray.h.

◆ Contains() [3/4]

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

virtual

◆ Contains() [4/4]

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

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 147 of file TEntryListArray.h.

◆ ConvertToTEntryListArray() [1/2]

void TEntryListArray::ConvertToTEntryListArray ( TEntryList * e )

protectedvirtual

Create a TEntryListArray based on the given TEntryList Called by SetTree when the given list is added to fLists Replace it by a TEntryListArray and delete the given list.

Definition at line 299 of file TEntryListArray.cxx.

◆ ConvertToTEntryListArray() [2/2]

virtual void TEntryListArray::ConvertToTEntryListArray ( TEntryList * e )

protectedvirtual

◆ Enter() [1/4]

Bool_t TEntryListArray::Enter	(	Long64_t	entry,
		TTree *	tree,
		Long64_t	subentry
	)

virtual

Add entry #entry (, #subentry) to the list.

When tree = 0, adds to the current list
When tree != 0, finds the list corresponding to this tree (or add a new one)
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

Definition at line 340 of file TEntryListArray.cxx.

◆ Enter() [2/4]

virtual Bool_t TEntryListArray::Enter	(	Long64_t	entry,
		TTree *	tree = `0`
	)

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 64 of file TEntryListArray.h.

◆ Enter() [3/4]

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

virtual

◆ Enter() [4/4]

virtual Bool_t TEntryListArray::Enter	(	Long64_t	entry,
		TTree *	tree = `0`
	)

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 151 of file TEntryListArray.h.

◆ GetSubListForEntry() [1/2]

TEntryListArray * TEntryListArray::GetSubListForEntry	(	Long64_t	entry,
		TTree *	tree = `0`
	)

virtual

Return the list holding the subentries for the given entry or 0.

Definition at line 389 of file TEntryListArray.cxx.

◆ GetSubListForEntry() [2/2]

virtual TEntryListArray* TEntryListArray::GetSubListForEntry	(	Long64_t	entry,
		TTree *	tree = `0`
	)

virtual

◆ GetSubLists() [1/2]

virtual TList* TEntryListArray::GetSubLists ( ) const

inlinevirtual

Definition at line 81 of file TEntryListArray.h.

◆ GetSubLists() [2/2]

virtual TList* TEntryListArray::GetSubLists ( ) const

inlinevirtual

Definition at line 168 of file TEntryListArray.h.

◆ Init() [1/2]

void TEntryListArray::Init ( void )

protected

Initialize data members, called by Reset.

Definition at line 83 of file TEntryListArray.cxx.

◆ Init() [2/2]

void TEntryListArray::Init ( )

protected

to iterate over fSubLists and keep last one checked

◆ operator=() [1/2]

TEntryListArray& TEntryListArray::operator= ( const TEntryListArray & )

private

◆ operator=() [2/2]

TEntryListArray& TEntryListArray::operator= ( const TEntryListArray & )

private

◆ Print() [1/2]

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

virtual

Print this list.

option = "" - default - print the name of the tree and file
option = "all" - print all the entry numbers
option = "subentries" - print all the entry numbers and associated subentries

Reimplemented from TEntryList.

Definition at line 441 of file TEntryListArray.cxx.

◆ Print() [2/2]

virtual void TEntryListArray::Print ( const Option_t * option = "" ) const

virtual

Print this list.

option = "" - default - print the name of the tree and file
option = "all" - print all the entry numbers

Reimplemented from TEntryList.

◆ Remove() [1/4]

Bool_t TEntryListArray::Remove	(	Long64_t	entry,
		TTree *	tree,
		Long64_t	subentry
	)

virtual

Remove entry #entry (, #subentry) 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

If subentry != -1, only the given subentry is removed

Definition at line 491 of file TEntryListArray.cxx.

◆ Remove() [2/4]

virtual Bool_t TEntryListArray::Remove	(	Long64_t	entry,
		TTree *	tree = `0`
	)

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 71 of file TEntryListArray.h.

◆ Remove() [3/4]

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

virtual

◆ Remove() [4/4]

virtual Bool_t TEntryListArray::Remove	(	Long64_t	entry,
		TTree *	tree = `0`
	)

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 158 of file TEntryListArray.h.

◆ RemoveSubList() [1/2]

Bool_t TEntryListArray::RemoveSubList	(	TEntryListArray *	e,
		TTree *	tree = `0`
	)

protectedvirtual

Remove the given sublist and return true if succeeded.

Definition at line 534 of file TEntryListArray.cxx.

◆ RemoveSubList() [2/2]

virtual Bool_t TEntryListArray::RemoveSubList	(	TEntryListArray *	e,
		TTree *	tree = `0`
	)

protectedvirtual

◆ RemoveSubListForEntry() [1/2]

Bool_t TEntryListArray::RemoveSubListForEntry	(	Long64_t	entry,
		TTree *	tree = `0`
	)

protectedvirtual

Remove the sublists for the given entry –> not being used...

Definition at line 561 of file TEntryListArray.cxx.

◆ RemoveSubListForEntry() [2/2]

virtual Bool_t TEntryListArray::RemoveSubListForEntry	(	Long64_t	entry,
		TTree *	tree = `0`
	)

protectedvirtual

◆ Reset() [1/2]

void TEntryListArray::Reset ( void )

virtual

Reset all entries and remove all sublists.

Reimplemented from TEntryList.

Definition at line 577 of file TEntryListArray.cxx.

◆ Reset() [2/2]

virtual void TEntryListArray::Reset ( void )

virtual

Reset this list.

Reimplemented from TEntryList.

◆ SetEntry() [1/2]

TEntryListArray * TEntryListArray::SetEntry	(	Long64_t	entry,
		TTree *	tree = `0`
	)

protectedvirtual

Create a sublist for the given entry and returns it –> should be called after calling GetSubListForEntry.

Definition at line 594 of file TEntryListArray.cxx.

◆ SetEntry() [2/2]

virtual TEntryListArray* TEntryListArray::SetEntry	(	Long64_t	entry,
		TTree *	tree = `0`
	)

protectedvirtual

◆ SetTree() [1/4]

void TEntryListArray::SetTree	(	const char *	treename,
		const char *	filename
	)

virtual

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.

Reimplemented from TEntryList.

Definition at line 698 of file TEntryListArray.cxx.

◆ SetTree() [2/4]

virtual void TEntryListArray::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 77 of file TEntryListArray.h.

◆ SetTree() [3/4]

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

virtual

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.

◆ SetTree() [4/4]

virtual void TEntryListArray::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 164 of file TEntryListArray.h.

◆ Subtract() [1/2]

void TEntryListArray::Subtract ( const TEntryList * elist )

virtual

Remove all the entries (and subentries) of this entry list that are contained in elist.

If for a given entry present in both lists, one has subentries and the other does not, the whole entry is removed

Reimplemented from TEntryList.

Definition at line 630 of file TEntryListArray.cxx.

◆ Subtract() [2/2]

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

virtual

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

Reimplemented from TEntryList.

Member Data Documentation

◆ fEntry

Long64_t TEntryListArray::fEntry

protected

the entry number, when the list is used for subentries

Definition at line 33 of file TEntryListArray.h.

◆ fLastSubListQueried

TEntryListArray * TEntryListArray::fLastSubListQueried

protected

! last sublist checked by GetSubListForEntry

Definition at line 34 of file TEntryListArray.h.

◆ fSubListIter

TIter * TEntryListArray::fSubListIter

protected

! to iterate over fSubLists and keep last one checked

last sublist checked by GetSubListForEntry

Definition at line 35 of file TEntryListArray.h.

◆ fSubLists

TList * TEntryListArray::fSubLists

protected

a list of underlying entry lists for each event of a TEntryList

Definition at line 32 of file TEntryListArray.h.

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

tree/tree/inc/TEntryListArray.h
tree/tree/src/TEntryListArray.cxx

Usage with TTree::Draw to select entries and subentries

About the class

Additions with respect to TEntryList

Public Member Functions

Protected Member Functions

Protected Attributes

Private Member Functions

Additional Inherited Members

Constructor & Destructor Documentation

◆ TEntryListArray() [1/14]

◆ TEntryListArray() [2/14]

◆ TEntryListArray() [3/14]

◆ TEntryListArray() [4/14]

◆ TEntryListArray() [5/14]

◆ TEntryListArray() [6/14]

◆ TEntryListArray() [7/14]

◆ ~TEntryListArray() [1/2]

◆ TEntryListArray() [8/14]

◆ TEntryListArray() [9/14]

◆ TEntryListArray() [10/14]

◆ TEntryListArray() [11/14]

◆ TEntryListArray() [12/14]

◆ TEntryListArray() [13/14]

◆ TEntryListArray() [14/14]

◆ ~TEntryListArray() [2/2]

Member Function Documentation

◆ Add() [1/2]

◆ Add() [2/2]

◆ AddEntriesAndSubLists() [1/2]

◆ AddEntriesAndSubLists() [2/2]

◆ Contains() [1/4]

◆ Contains() [2/4]

◆ Contains() [3/4]

◆ Contains() [4/4]

◆ ConvertToTEntryListArray() [1/2]

◆ ConvertToTEntryListArray() [2/2]

◆ Enter() [1/4]

◆ Enter() [2/4]

◆ Enter() [3/4]

◆ Enter() [4/4]

◆ GetSubListForEntry() [1/2]

◆ GetSubListForEntry() [2/2]

◆ GetSubLists() [1/2]

◆ GetSubLists() [2/2]

◆ Init() [1/2]

◆ Init() [2/2]

◆ operator=() [1/2]

◆ operator=() [2/2]

◆ Print() [1/2]

◆ Print() [2/2]

◆ Remove() [1/4]

◆ Remove() [2/4]

◆ Remove() [3/4]

◆ Remove() [4/4]

◆ RemoveSubList() [1/2]

◆ RemoveSubList() [2/2]

◆ RemoveSubListForEntry() [1/2]

◆ RemoveSubListForEntry() [2/2]

◆ Reset() [1/2]

◆ Reset() [2/2]

◆ SetEntry() [1/2]

◆ SetEntry() [2/2]

◆ SetTree() [1/4]

◆ SetTree() [2/4]

◆ SetTree() [3/4]

◆ SetTree() [4/4]

◆ Subtract() [1/2]

◆ Subtract() [2/2]

Member Data Documentation

◆ fEntry

◆ fLastSubListQueried

◆ fSubListIter

◆ fSubLists