A Branch for the case of an object.

Definition at line 52 of file TBranchElement.h.

Public Types
enum	EBranchElementType { kLeafNode = 0, kBaseClassNode = 1, kObjectNode = 2, kClonesNode = 3, kSTLNode = 4, kClonesMemberNode = 31, kSTLMemberNode = 41 }

Public Types inherited from TObject
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) }

enum	{ kIsOnHeap = 0x01000000, kNotDeleted = 0x02000000, kZombie = 0x04000000, kBitMask = 0x00ffffff }

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

Public Member Functions
	TBranchElement ()
	Default and I/O constructor. More...

	TBranchElement (TTree tree, const char name, TStreamerInfo sinfo, Int_t id, char pointer, Int_t basketsize=32000, Int_t splitlevel=0, Int_t btype=0)
	Constructor when the branch object is not a TClonesArray nor an STL container. More...

	TBranchElement (TTree tree, const char name, TClonesArray *clones, Int_t basketsize=32000, Int_t splitlevel=0, Int_t compress=-1)
	Constructor when the branch object is a TClonesArray. More...

	TBranchElement (TTree tree, const char name, TVirtualCollectionProxy *cont, Int_t basketsize=32000, Int_t splitlevel=0, Int_t compress=-1)
	Constructor when the branch object is an STL collection. More...

	TBranchElement (TBranch parent, const char name, TStreamerInfo sinfo, Int_t id, char pointer, Int_t basketsize=32000, Int_t splitlevel=0, Int_t btype=0)
	Constructor when the branch object is not a TClonesArray nor an STL container. More...

	TBranchElement (TBranch parent, const char name, TClonesArray *clones, Int_t basketsize=32000, Int_t splitlevel=0, Int_t compress=-1)
	Constructor when the branch object is a TClonesArray. More...

	TBranchElement (TBranch parent, const char name, TVirtualCollectionProxy *cont, Int_t basketsize=32000, Int_t splitlevel=0, Int_t compress=-1)
	Constructor when the branch object is an STL collection. More...

virtual	~TBranchElement ()
	Destructor. More...

virtual void	Browse (TBrowser *b)
	Browse the branch content. More...

virtual Int_t	Fill ()
	Loop on all leaves of this branch to fill the basket buffer. More...

virtual TBranch *	FindBranch (const char *name)
	Find the immediate sub-branch with passed name. More...

virtual TLeaf *	FindLeaf (const char *name)
	Find the leaf corresponding to the name 'searchname'. More...

virtual char *	GetAddress () const
	Get the branch address. More...

TBranchElement *	GetBranchCount () const

TBranchElement *	GetBranchCount2 () const

Int_t *	GetBranchOffset () const

UInt_t	GetCheckSum ()

virtual const char *	GetClassName () const
	Return the name of the user class whose content is stored in this branch, if any. More...

virtual TClass *	GetClass () const

virtual const char *	GetClonesName () const

TVirtualCollectionProxy *	GetCollectionProxy ()
	Return the collection proxy describing the branch content, if any. More...

TClass *	GetCurrentClass ()
	Return a pointer to the current type of the data member corresponding to branch element. More...

virtual Int_t	GetEntry (Long64_t entry=0, Int_t getall=0)
	Read all branches of a BranchElement and return total number of bytes. More...

virtual Int_t	GetExpectedType (TClass *&clptr, EDataType &type)
	Fill expectedClass and expectedType with information on the data type of the object/values contained in this branch (and thus the type of pointers expected to be passed to Set[Branch]Address return 0 in case of success and > 0 in case of failure. More...

const char *	GetIconName () const
	Return icon name depending on type of branch element. More...

Int_t	GetID () const

TStreamerInfo *	GetInfo () const
	Get streamer info for the branch class. More...

Bool_t	GetMakeClass () const
	Return whether this branch is in a mode where the object are decomposed or not (Also known as MakeClass mode). More...

char *	GetObject () const
	Return a pointer to our object. More...

virtual const char *	GetParentName () const

virtual Int_t	GetMaximum () const
	Return maximum count value of the branchcount if any. More...

Int_t	GetNdata () const

Int_t	GetType () const

Int_t	GetStreamerType () const

virtual TClass *	GetTargetClass ()

virtual const char *	GetTypeName () const
	Return type name of element in the branch. More...

Double_t	GetValue (Int_t i, Int_t len, Bool_t subarr=kFALSE) const

template<typename T >
T	GetTypedValue (Int_t i, Int_t len, Bool_t subarr=kFALSE) const

virtual void *	GetValuePointer () const
	Returns pointer to first data element of this branch. More...

Int_t	GetClassVersion ()

Bool_t	IsBranchFolder () const

Bool_t	IsFolder () const
	Return kTRUE if more than one leaf, kFALSE otherwise. More...

virtual Bool_t	IsObjectOwner () const

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

virtual void	Print (Option_t *option="") const
	Print branch parameters. More...

void	PrintValue (Int_t i) const
	Prints values of leaves. More...

virtual void	Reset (Option_t *option="")
	Reset a Branch. More...

virtual void	ResetAfterMerge (TFileMergeInfo *)
	Reset a Branch after a Merge operation (drop data but keep customizations) More...

virtual void	ResetAddress ()
	Set branch address to zero and free all allocated memory. More...

virtual void	ResetDeleteObject ()
	Release ownership of any allocated objects. More...

virtual void	SetAddress (void *addobj)
	Point this branch at an object. More...

virtual Bool_t	SetMakeClass (Bool_t decomposeObj=kTRUE)
	Set the branch in a mode where the object are decomposed (Also known as MakeClass mode). More...

virtual void	SetObject (void *objadd)
	Set object this branch is pointing to. More...

virtual void	SetBasketSize (Int_t buffsize)
	Reset the basket size for all sub-branches of this branch element. More...

virtual void	SetBranchFolder ()

virtual void	SetClassName (const char *name)

virtual void	SetOffset (Int_t offset)
	Set offset of the object (to which the data member represented by this branch belongs) inside its containing object (if any). More...

void	SetParentClass (TClass *clparent)

virtual void	SetParentName (const char *name)

virtual void	SetTargetClass (const char *name)
	Set the name of the class of the in-memory object into which the data will loaded. More...

virtual void	SetupAddresses ()
	If the branch address is not set, we set all addresses starting with the top level parent branch. More...

virtual void	SetType (Int_t btype)

virtual void	UpdateFile ()
	Refresh the value of fDirectory (i.e. More...

Public Member Functions inherited from TBranch
	TBranch ()

	TBranch (TTree tree, const char name, void address, const char leaflist, Int_t basketsize=32000, Int_t compress=-1)
	Create a Branch as a child of a Tree. More...

	TBranch (TBranch parent, const char name, void address, const char leaflist, Int_t basketsize=32000, Int_t compress=-1)
	Create a Branch as a child of another Branch. More...

virtual	~TBranch ()
	Destructor. More...

virtual void	AddBasket (TBasket &b, Bool_t ondisk, Long64_t startEntry)
	Add the basket to this branch. More...

virtual void	AddLastBasket (Long64_t startEntry)
	Add the start entry of the write basket (not yet created) More...

virtual void	DeleteBaskets (Option_t *option="")
	Loop on all branch baskets. More...

virtual void	DropBaskets (Option_t *option="")
	Loop on all branch baskets. More...

void	ExpandBasketArrays ()
	Increase BasketEntry buffer of a minimum of 10 locations and a maximum of 50 per cent of current size. More...

Int_t	FlushBaskets ()
	Flush to disk all the baskets of this branch and any of subbranches. More...

Int_t	FlushOneBasket (UInt_t which)
	If we have a write basket in memory and it contains some entries and has not yet been written to disk, we write it and delete it from memory. More...

TBasket *	GetBasket (Int_t basket)
	Return pointer to basket basketnumber in this Branch. More...

Int_t *	GetBasketBytes () const

Long64_t *	GetBasketEntry () const

virtual Long64_t	GetBasketSeek (Int_t basket) const
	Return address of basket in the file. More...

virtual Int_t	GetBasketSize () const

virtual TList *	GetBrowsables ()
	Returns (and, if 0, creates) browsable objects for this branch See TVirtualBranchBrowsable::FillListOfBrowsables. More...

Int_t	GetCompressionAlgorithm () const

Int_t	GetCompressionLevel () const

Int_t	GetCompressionSettings () const

TDirectory *	GetDirectory () const

virtual Int_t	GetEntryExport (Long64_t entry, Int_t getall, TClonesArray *list, Int_t n)
	Read all leaves of an entry and export buffers to real objects in a TClonesArray list. More...

Int_t	GetEntryOffsetLen () const

Int_t	GetEvent (Long64_t entry=0)

virtual TLeaf *	GetLeaf (const char *name) const
	Return pointer to the 1st Leaf named name in thisBranch. More...

virtual TFile *	GetFile (Int_t mode=0)
	Return pointer to the file where branch buffers reside, returns 0 in case branch buffers reside in the same file as tree header. More...

const char *	GetFileName () const

Int_t	GetOffset () const

Int_t	GetReadBasket () const

Long64_t	GetReadEntry () const

Int_t	GetWriteBasket () const

Long64_t	GetTotalSize (Option_t *option="") const
	Return total number of bytes in the branch (including current buffer) More...

Long64_t	GetTotBytes (Option_t *option="") const
	Return total number of bytes in the branch (excluding current buffer) if option ="*" includes all sub-branches of this branch too. More...

Long64_t	GetZipBytes (Option_t *option="") const
	Return total number of zip bytes in the branch if option ="*" includes all sub-branches of this branch too. More...

Long64_t	GetEntryNumber () const

Long64_t	GetFirstEntry () const

TObjArray *	GetListOfBaskets ()

TObjArray *	GetListOfBranches ()

TObjArray *	GetListOfLeaves ()

Int_t	GetMaxBaskets () const

Int_t	GetNleaves () const

Int_t	GetSplitLevel () const

Long64_t	GetEntries () const

TTree *	GetTree () const

virtual Int_t	GetRow (Int_t row)
	Return all elements of one row unpacked in internal array fValues [Actually just returns 1 (?)]. More...

TBranch *	GetMother () const
	Get our top-level parent branch in the tree. More...

TBranch *	GetSubBranch (const TBranch *br) const
	Find the parent branch of child. More...

Bool_t	IsAutoDelete () const
	Return kTRUE if an existing object in a TBranchObject must be deleted. More...

virtual void	KeepCircular (Long64_t maxEntries)
	keep a maximum of fMaxEntries in memory More...

virtual Int_t	LoadBaskets ()
	Baskets associated to this branch are forced to be in memory. More...

virtual void	ReadBasket (TBuffer &b)
	Loop on all leaves of this branch to read Basket buffer. More...

virtual void	Refresh (TBranch *b)
	Refresh this branch using new information in b This function is called by TTree::Refresh. More...

virtual void	ResetReadEntry ()

virtual void	SetAutoDelete (Bool_t autodel=kTRUE)
	Set the automatic delete bit. More...

virtual void	SetBufferAddress (TBuffer *entryBuffer)
	Set address of this branch directly from a TBuffer to avoid streaming. More...

void	SetCompressionAlgorithm (Int_t algorithm=0)
	Set compression algorithm. More...

void	SetCompressionLevel (Int_t level=1)
	Set compression level. More...

void	SetCompressionSettings (Int_t settings=1)
	Set compression settings. More...

virtual void	SetEntries (Long64_t entries)
	Set the number of entries in this branch. More...

virtual void	SetEntryOffsetLen (Int_t len, Bool_t updateSubBranches=kFALSE)
	Update the default value for the branch's fEntryOffsetLen if and only if it was already non zero (and the new value is not zero) If updateExisting is true, also update all the existing branches. More...

virtual void	SetFirstEntry (Long64_t entry)
	set the first entry number (case of TBranchSTL) More...

virtual void	SetFile (TFile *file=0)
	Set file where this branch writes/reads its buffers. More...

virtual void	SetFile (const char *filename)
	Set file where this branch writes/reads its buffers. More...

virtual void	SetStatus (Bool_t status=1)
	Set branch status to Process or DoNotProcess. More...

virtual void	SetTree (TTree *tree)

virtual void	UpdateAddress ()

	ClassDef (TBranch, 12)

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 &	operator= (const TNamed &rhs)
	TNamed assignment operator. 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	SetName (const char *name)
	Change (i.e. More...

virtual void	SetNameTitle (const char name, const char title)
	Change (i.e. set) all the TNamed parameters (name and title). More...

virtual void	SetTitle (const char *title="")
	Change (i.e. set) the title of the TNamed. More...

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

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

Public Member Functions inherited from TObject
	TObject ()

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

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

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

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

virtual void	Dump () const
	Dump contents of object on stdout. 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 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 UInt_t	GetUniqueID () const
	Return the unique object id. More...

virtual Option_t *	GetOption () const

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

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

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

Bool_t	IsOnHeap () const

Bool_t	IsZombie () const

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...

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...

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

void *	operator new (size_t sz)

void *	operator new[] (size_t sz)

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

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

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

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

void	ResetBit (UInt_t f)

Bool_t	TestBit (UInt_t f) const

Int_t	TestBits (UInt_t f) const

void	InvertBit (UInt_t f)

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

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

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

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

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

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...

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

Public Member Functions inherited from TAttFill
	TAttFill ()

	TAttFill (Color_t fcolor, Style_t fstyle)
	AttFill normal constructor. More...

virtual	~TAttFill ()
	AttFill destructor. More...

void	Copy (TAttFill &attfill) const
	Copy this fill attributes to a new TAttFill. More...

virtual Color_t	GetFillColor () const

virtual Style_t	GetFillStyle () const

virtual Bool_t	IsTransparent () const

virtual void	Modify ()
	Change current fill area attributes if necessary. More...

virtual void	ResetAttFill (Option_t *option="")
	Reset this fill attributes to default values. More...

virtual void	SaveFillAttributes (std::ostream &out, const char *name, Int_t coldef=1, Int_t stydef=1001)
	Save fill attributes as C++ statement(s) on output stream out. More...

virtual void	SetFillAttributes ()
	Invoke the DialogCanvas Fill attributes. More...

virtual void	SetFillColor (Color_t fcolor)

virtual void	SetFillColorAlpha (Color_t fcolor, Float_t falpha)
	Set a transparent fill color. More...

virtual void	SetFillStyle (Style_t fstyle)

Protected Types
enum	{ kBranchFolder = BIT(14), kDeleteObject = BIT(16), kCache = BIT(18), kOwnOnfileObj = BIT(19), kAddressSet = BIT(20), kMakeClass = BIT(21), kDecomposedObj = BIT(21) }

Protected Types inherited from TBranch
enum	EStatusBits { kAutoDelete = BIT(15), kDoNotUseBufferMap = BIT(22) }

typedef void(TBranch::*	ReadLeaves_t )(TBuffer &b)
	After being read, the buffer will not be unziped. More...

typedef void(TBranch::*	FillLeaves_t )(TBuffer &b)
	Pointer to the ReadLeaves implementation to use. More...

Protected Member Functions
void	BuildTitle (const char *name)
	Set branch and leaf name and title in the case of a container sub-branch. More...

virtual void	InitializeOffsets ()
	Initialize the base class subobjects offsets of our sub-branches and set fOffset if we are a container sub-branch. More...

virtual void	InitInfo ()
	Init the streamer info for the branch class, try to compensate for class code unload/reload and schema evolution. More...

Bool_t	IsMissingCollection () const
	Detect a collection written using a zero pointer in old versions of root. More...

TClass *	GetParentClass ()
	Return a pointer to the parent class of the branch element. More...

TStreamerInfo *	GetInfoImp () const
	Get streamer info for the branch class. More...

void	ReleaseObject ()
	Delete any object we may have allocated on a previous call to SetAddress. More...

void	SetBranchCount (TBranchElement *bre)
	Set the branch counter for this branch. More...

void	SetBranchCount2 (TBranchElement *bre)

Int_t	Unroll (const char name, TClass cltop, TClass cl, char ptr, Int_t basketsize, Int_t splitlevel, Int_t btype)
	Split class cl into sub-branches of this branch. More...

void	ValidateAddress () const

void	Init (TTree tree, TBranch parent, const char name, TStreamerInfo sinfo, Int_t id, char *pointer, Int_t basketsize=32000, Int_t splitlevel=0, Int_t btype=0)
	Init when the branch object is not a TClonesArray nor an STL container. More...

void	Init (TTree tree, TBranch parent, const char name, TClonesArray clones, Int_t basketsize=32000, Int_t splitlevel=0, Int_t compress=-1)
	Init when the branch object is a TClonesArray. More...

void	Init (TTree tree, TBranch parent, const char name, TVirtualCollectionProxy cont, Int_t basketsize=32000, Int_t splitlevel=0, Int_t compress=-1)
	Init when the branch object is an STL collection. More...

void	ReadLeavesImpl (TBuffer &b)
	Unconfiguration Read Leave function. More...

void	ReadLeavesMakeClass (TBuffer &b)
	Read leaves into i/o buffers for this branch. More...

void	ReadLeavesCollection (TBuffer &b)
	Read leaves into i/o buffers for this branch. More...

void	ReadLeavesCollectionSplitPtrMember (TBuffer &b)
	Read leaves into i/o buffers for this branch. More...

void	ReadLeavesCollectionSplitVectorPtrMember (TBuffer &b)
	Read leaves into i/o buffers for this branch. More...

void	ReadLeavesCollectionMember (TBuffer &b)
	Read leaves into i/o buffers for this branch. More...

void	ReadLeavesClones (TBuffer &b)
	Read leaves into i/o buffers for this branch. More...

void	ReadLeavesClonesMember (TBuffer &b)
	Read leaves into i/o buffers for this branch. More...

void	ReadLeavesCustomStreamer (TBuffer &b)
	Read leaves into i/o buffers for this branch. More...

void	ReadLeavesMember (TBuffer &b)
	Read leaves into i/o buffers for this branch. More...

void	ReadLeavesMemberBranchCount (TBuffer &b)
	Read leaves into i/o buffers for this branch. More...

void	ReadLeavesMemberCounter (TBuffer &b)
	Read leaves into i/o buffers for this branch. More...

void	SetReadLeavesPtr ()
	Set the ReadLeaves pointer to execute the expected operations. More...

void	SetReadActionSequence ()
	Set the sequence of actions needed to read the data out of the buffer. More...

void	SetupAddressesImpl ()
	If the branch address is not set, we set all addresses starting with the top level parent branch. More...

void	FillLeavesImpl (TBuffer &b)
	Unconfiguration Fill Leave function. More...

void	FillLeavesMakeClass (TBuffer &b)
	Write leaves into i/o buffers for this branch. More...

void	FillLeavesCollection (TBuffer &b)
	Write leaves into i/o buffers for this branch. More...

void	FillLeavesCollectionSplitVectorPtrMember (TBuffer &b)
	Write leaves into i/o buffers for this branch. More...

void	FillLeavesCollectionSplitPtrMember (TBuffer &b)
	Write leaves into i/o buffers for this branch. More...

void	FillLeavesCollectionMember (TBuffer &b)
	Write leaves into i/o buffers for this branch. More...

void	FillLeavesAssociativeCollectionMember (TBuffer &b)
	Write leaves into i/o buffers for this branch. More...

void	FillLeavesClones (TBuffer &b)
	Write leaves into i/o buffers for this branch. More...

void	FillLeavesClonesMember (TBuffer &b)
	Write leaves into i/o buffers for this branch. More...

void	FillLeavesCustomStreamer (TBuffer &b)
	Write leaves into i/o buffers for this branch. More...

void	FillLeavesMemberBranchCount (TBuffer &b)
	Write leaves into i/o buffers for this branch. More...

void	FillLeavesMemberCounter (TBuffer &b)
	Write leaves into i/o buffers for this branch. More...

void	FillLeavesMember (TBuffer &b)
	Write leaves into i/o buffers for this branch. More...

void	SetFillLeavesPtr ()
	Set the FillLeaves pointer to execute the expected operations. More...

void	SetFillActionSequence ()
	Set the sequence of actions needed to write the data out from the buffer. More...

Protected Member Functions inherited from TBranch
void	ReadLeavesImpl (TBuffer &b)
	Pointer to the FillLeaves implementation to use. More...

void	ReadLeaves0Impl (TBuffer &b)
	Read zero leaves without the overhead of a loop. More...

void	ReadLeaves1Impl (TBuffer &b)
	Read one leaf without the overhead of a loop. More...

void	ReadLeaves2Impl (TBuffer &b)
	Read two leaves without the overhead of a loop. More...

void	FillLeavesImpl (TBuffer &b)
	Loop on all leaves of this branch to fill Basket buffer. More...

void	SetSkipZip (Bool_t skip=kTRUE)

void	Init (const char name, const char leaflist, Int_t compress)

TBasket *	GetFreshBasket ()
	Return a fresh basket by either resusing an existing basket that needs to be drop (according to TTree::MemoryFull) or create a new one. More...

Int_t	WriteBasket (TBasket *basket, Int_t where)
	Write the current basket to disk and return the number of bytes written to the file. More...

TString	GetRealFileName () const
	Get real file name. More...

Protected Member Functions inherited from TObject
void	MakeZombie ()

virtual void	DoError (int level, const char location, const char fmt, va_list va) const
	Interface to ErrorHandler (protected). More...

Protected Attributes
TString	fClassName

TString	fParentName

TString	fClonesName

TVirtualCollectionProxy *	fCollProxy

UInt_t	fCheckSum
	collection interface (if any) More...

Version_t	fClassVersion

Int_t	fID

Int_t	fType

Int_t	fStreamerType

Int_t	fMaximum

Int_t	fSTLtype

Int_t	fNdata
	STL container type. More...

TBranchElement *	fBranchCount
	Number of data in this branch. More...

TBranchElement *	fBranchCount2

TStreamerInfo *	fInfo

char *	fObject
	Pointer to StreamerInfo. More...

TVirtualArray *	fOnfileObject
	Pointer to object at *fAddress. More...

Bool_t	fInit
	Place holder for the onfile representation of data members. More...

Bool_t	fInitOffsets
	Initialization flag for branch assignment. More...

TClassRef	fTargetClass
	Initialization flag to not endlessly recalculate offsets. More...

TClassRef	fCurrentClass
	Reference to the target in-memory class. More...

TClassRef	fParentClass
	Reference to current (transient) class definition. More...

TClassRef	fBranchClass
	Reference to class definition in fParentName. More...

TClassRef	fClonesClass
	Reference to class definition in fClassName. More...

Int_t *	fBranchOffset
	Reference to class definition in fClonesName. More...

Int_t	fBranchID
	Sub-Branch offsets with respect to current transient class. More...

std::vector< Int_t >	fIDs
	ID number assigned by a TRefTable. More...

TStreamerInfoActions::TActionSequence *	fReadActionSequence
	List of the serial number of all the StreamerInfo to be used. More...

TStreamerInfoActions::TActionSequence *	fFillActionSequence
	Set of actions to be executed to extract the data from the basket. More...

TVirtualCollectionIterators *	fIterators
	Set of actions to be executed to write the data to the basket. More...

TVirtualCollectionIterators *	fWriteIterators
	holds the iterators when the branch is of fType==4. More...

TVirtualCollectionPtrIterators *	fPtrIterators
	holds the read (non-staging) iterators when the branch is of fType==4 and associative containers. More...

Protected Attributes inherited from TBranch
Int_t	fCompress
	branch counter More...

Int_t	fBasketSize

Int_t	fEntryOffsetLen

Int_t	fWriteBasket

Long64_t	fEntryNumber

Int_t	fOffset

Int_t	fMaxBaskets

Int_t	fNBaskets

Int_t	fSplitLevel
	Number of baskets in memory. More...

Int_t	fNleaves

Int_t	fReadBasket
	Number of leaves. More...

Long64_t	fReadEntry
	Current basket number when reading. More...

Long64_t	fFirstBasketEntry
	Current entry number when reading. More...

Long64_t	fNextBasketEntry
	First entry in the current basket. More...

TBasket *	fCurrentBasket
	Next entry that will requires us to go to the next basket. More...

Long64_t	fEntries
	Pointer to the current basket. More...

Long64_t	fFirstEntry

Long64_t	fTotBytes

Long64_t	fZipBytes

TObjArray	fBranches

TObjArray	fLeaves

TObjArray	fBaskets

Int_t *	fBasketBytes

Long64_t *	fBasketEntry

Long64_t *	fBasketSeek

TTree *	fTree

TBranch *	fMother
	Pointer to Tree header. More...

TBranch *	fParent
	Pointer to top-level parent branch in the tree. More...

char *	fAddress
	Pointer to parent branch. More...

TDirectory *	fDirectory
	Address of 1st leaf (variable or object) More...

TString	fFileName
	Pointer to directory where this branch buffers are stored. More...

TBuffer *	fEntryBuffer

TList *	fBrowsables
	Buffer used to directly pass the content without streaming. More...

Bool_t	fSkipZip
	List of TVirtualBranchBrowsables used for Browse() More...

ReadLeaves_t	fReadLeaves

FillLeaves_t	fFillLeaves

Protected Attributes inherited from TNamed
TString	fName

TString	fTitle

Protected Attributes inherited from TAttFill
Color_t	fFillColor

Style_t	fFillStyle

Private Member Functions
	TBranchElement (const TBranchElement &)
	holds the iterators when the branch is of fType==4 and it is a split collection of pointers. More...

TBranchElement &	operator= (const TBranchElement &)

Static Private Member Functions
static void	SwitchContainer (TObjArray *)
	Modify the container type of the branches. More...

Friends
class	TTreeCloner

Additional Inherited Members
Static Public Member Functions inherited from TBranch
static void	ResetCount ()
	Static function resetting fgCount. More...

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

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

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

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

Static Protected Attributes inherited from TBranch
static Int_t	fgCount = 0

#include <TBranchElement.h>

Inheritance diagram for TBranchElement:

[legend]

Member Enumeration Documentation

anonymous enum

protected

Enumerator
kBranchFolder
kDeleteObject
kCache
kOwnOnfileObj
kAddressSet
kMakeClass
kDecomposedObj

Definition at line 59 of file TBranchElement.h.

enum TBranchElement::EBranchElementType

Enumerator
kLeafNode
kBaseClassNode
kObjectNode
kClonesNode
kSTLNode
kClonesMemberNode
kSTLMemberNode

Definition at line 228 of file TBranchElement.h.

Constructor & Destructor Documentation

TBranchElement::TBranchElement ( const TBranchElement & )

private

holds the iterators when the branch is of fType==4 and it is a split collection of pointers.

TBranchElement::TBranchElement ( )

Default and I/O constructor.

Definition at line 141 of file TBranchElement.cxx.

Referenced by Unroll().

TBranchElement::TBranchElement	(	TTree *	tree,
		const char *	bname,
		TStreamerInfo *	sinfo,
		Int_t	id,
		char *	pointer,
		Int_t	basketsize = `32000`,
		Int_t	splitlevel = `0`,
		Int_t	btype = `0`
	)

Constructor when the branch object is not a TClonesArray nor an STL container.

If splitlevel > 0 this branch in turn is split into sub-branches.

Definition at line 185 of file TBranchElement.cxx.

TBranchElement::TBranchElement	(	TTree *	tree,
		const char *	bname,
		TClonesArray *	clones,
		Int_t	basketsize = `32000`,
		Int_t	splitlevel = `0`,
		Int_t	compress = `-1`
	)

Constructor when the branch object is a TClonesArray.

If splitlevel > 0 this branch in turn is split into sub branches.

Definition at line 653 of file TBranchElement.cxx.

TBranchElement::TBranchElement	(	TTree *	tree,
		const char *	bname,
		TVirtualCollectionProxy *	cont,
		Int_t	basketsize = `32000`,
		Int_t	splitlevel = `0`,
		Int_t	compress = `-1`
	)

Constructor when the branch object is an STL collection.

If splitlevel > 0 this branch in turn is split into sub branches.

Definition at line 797 of file TBranchElement.cxx.

TBranchElement::TBranchElement	(	TBranch *	parent,
		const char *	bname,
		TStreamerInfo *	sinfo,
		Int_t	id,
		char *	pointer,
		Int_t	basketsize = `32000`,
		Int_t	splitlevel = `0`,
		Int_t	btype = `0`
	)

Constructor when the branch object is not a TClonesArray nor an STL container.

If splitlevel > 0 this branch in turn is split into sub-branches.

Definition at line 227 of file TBranchElement.cxx.

TBranchElement::TBranchElement	(	TBranch *	parent,
		const char *	bname,
		TClonesArray *	clones,
		Int_t	basketsize = `32000`,
		Int_t	splitlevel = `0`,
		Int_t	compress = `-1`
	)

Constructor when the branch object is a TClonesArray.

If splitlevel > 0 this branch in turn is split into sub branches.

Definition at line 677 of file TBranchElement.cxx.

TBranchElement::TBranchElement	(	TBranch *	parent,
		const char *	bname,
		TVirtualCollectionProxy *	cont,
		Int_t	basketsize = `32000`,
		Int_t	splitlevel = `0`,
		Int_t	compress = `-1`
	)

Constructor when the branch object is an STL collection.

If splitlevel > 0 this branch in turn is split into sub branches.

Definition at line 820 of file TBranchElement.cxx.

TBranchElement::~TBranchElement ( )

virtual

Destructor.

Definition at line 949 of file TBranchElement.cxx.

Member Function Documentation

void TBranchElement::Browse ( TBrowser * b )

virtual

Browse the branch content.

Reimplemented from TBranch.

Definition at line 1006 of file TBranchElement.cxx.

void TBranchElement::BuildTitle ( const char * name )

protected

Set branch and leaf name and title in the case of a container sub-branch.

Definition at line 1118 of file TBranchElement.cxx.

Referenced by BuildTitle(), and Init().

Int_t TBranchElement::Fill ( )

virtual

Loop on all leaves of this branch to fill the basket buffer.

The function returns the number of bytes committed to the individual branches. If a write error occurs, the number of bytes returned is -1. If no data are written, because, e.g., the branch is disabled, the number of bytes returned is 0.

Note: We not not use any member functions from TLeafElement!

Reimplemented from TBranch.

Definition at line 1195 of file TBranchElement.cxx.

Referenced by Fill().

void TBranchElement::FillLeavesAssociativeCollectionMember ( TBuffer & b )

protected

Write leaves into i/o buffers for this branch.

Case of a data member within a collection (fType == 41).

Definition at line 1527 of file TBranchElement.cxx.

Referenced by SetFillLeavesPtr().

void TBranchElement::FillLeavesClones ( TBuffer & b )

protected

Write leaves into i/o buffers for this branch.

Case of a TClonesArray (fType == 3).

Definition at line 1558 of file TBranchElement.cxx.

Referenced by SetFillLeavesPtr().

void TBranchElement::FillLeavesClonesMember ( TBuffer & b )

protected

Write leaves into i/o buffers for this branch.

Case of a data member within a TClonesArray (fType == 31).

Definition at line 1583 of file TBranchElement.cxx.

Referenced by SetFillLeavesPtr().

void TBranchElement::FillLeavesCollection ( TBuffer & b )

protected

Write leaves into i/o buffers for this branch.

Case of a collection (fType == 4).

Definition at line 1392 of file TBranchElement.cxx.

Referenced by SetFillLeavesPtr().

void TBranchElement::FillLeavesCollectionMember ( TBuffer & b )

protected

Write leaves into i/o buffers for this branch.

Case of a data member within a collection (fType == 41).

Definition at line 1496 of file TBranchElement.cxx.

Referenced by SetFillLeavesPtr().

void TBranchElement::FillLeavesCollectionSplitPtrMember ( TBuffer & b )

protected

Write leaves into i/o buffers for this branch.

Case of a data member within a collection (fType == 41).

Definition at line 1465 of file TBranchElement.cxx.

Referenced by SetFillLeavesPtr().

void TBranchElement::FillLeavesCollectionSplitVectorPtrMember ( TBuffer & b )

protected

Write leaves into i/o buffers for this branch.

Case of a data member within a collection (fType == 41).

Definition at line 1435 of file TBranchElement.cxx.

Referenced by SetFillLeavesPtr().

void TBranchElement::FillLeavesCustomStreamer ( TBuffer & b )

protected

Write leaves into i/o buffers for this branch.

Case of a non TObject, non collection class with a custom streamer

Definition at line 1612 of file TBranchElement.cxx.

Referenced by SetFillLeavesPtr().

void TBranchElement::FillLeavesImpl ( TBuffer & b )

protected

Unconfiguration Fill Leave function.

Definition at line 4148 of file TBranchElement.cxx.

Referenced by Init(), and TBranchElement().

void TBranchElement::FillLeavesMakeClass ( TBuffer & b )

protected

Write leaves into i/o buffers for this branch.

For the case where the branch is set in MakeClass mode (decomposed object).

Definition at line 1286 of file TBranchElement.cxx.

Referenced by SetFillLeavesPtr().

void TBranchElement::FillLeavesMember ( TBuffer & b )

protected

Write leaves into i/o buffers for this branch.

For split-class branch, base class branch, data member branch, or top-level branch. which do not have a branch count and are not a counter.

Definition at line 1700 of file TBranchElement.cxx.

Referenced by FillLeavesMemberBranchCount(), and SetFillLeavesPtr().

void TBranchElement::FillLeavesMemberBranchCount ( TBuffer & b )

protected

Write leaves into i/o buffers for this branch.

For split-class branch, base class branch, data member branch, or top-level branch. which do have a branch count and are not a counter.

Definition at line 1642 of file TBranchElement.cxx.

Referenced by SetFillLeavesPtr().

void TBranchElement::FillLeavesMemberCounter ( TBuffer & b )

protected

Write leaves into i/o buffers for this branch.

For split-class branch, base class branch, data member branch, or top-level branch. which do not have a branch count and are a counter.

Definition at line 1663 of file TBranchElement.cxx.

Referenced by SetFillLeavesPtr().

TBranch * TBranchElement::FindBranch ( const char * name )

virtual

Find the immediate sub-branch with passed name.

Reimplemented from TBranch.

Definition at line 1753 of file TBranchElement.cxx.

Referenced by Browse(), and FindBranch().

TLeaf * TBranchElement::FindLeaf ( const char * name )

virtual

Find the leaf corresponding to the name 'searchname'.

Reimplemented from TBranch.

Definition at line 1838 of file TBranchElement.cxx.

char * TBranchElement::GetAddress ( ) const

virtual

Get the branch address.

If we are not owned by a MakeClass() tree:

If we are a top-level branch, return a pointer
to the pointer to our object.

If we are not a top-level branch, return a pointer to our object.

If we are owned by a MakeClass() tree:

Return a pointer to our object.

Reimplemented from TBranch.

Definition at line 1889 of file TBranchElement.cxx.

Referenced by TTreeFormula::BranchHasMethod(), FillLeavesMakeClass(), TFormLeafInfo::GetObjectAddress(), TTreeFormula::LoadCurrentDim(), TTreeFormula::ParseWithLeaf(), and SetupAddressesImpl().

TBranchElement* TBranchElement::GetBranchCount ( ) const

inline

Definition at line 177 of file TBranchElement.h.

Referenced by ROOT::Internal::TTreeProxyGenerator::AnalyzeBranches(), ROOT::Internal::TTreeReaderGenerator::AnalyzeBranches(), ClassImp(), TFormLeafInfoMultiVarDim::LoadSizes(), TTreeFormula::ParseWithLeaf(), TTreeFormula::RegisterDimensions(), ROOT::Detail::TBranchProxy::Setup(), and TTreeFormula::SwitchToFormLeafInfo().

TBranchElement* TBranchElement::GetBranchCount2 ( ) const

inline

Definition at line 178 of file TBranchElement.h.

Referenced by TTreeFormula::LoadCurrentDim(), TFormLeafInfoMultiVarDim::LoadSizes(), TTreePlayer::MakeClass(), and TTreeFormula::RegisterDimensions().

Int_t* TBranchElement::GetBranchOffset ( ) const

inline

Definition at line 179 of file TBranchElement.h.

Referenced by TBranchSTL::Print().

UInt_t TBranchElement::GetCheckSum ( )

inline

Definition at line 180 of file TBranchElement.h.

Referenced by TTree::CheckBranchAddressType(), and InitInfo().

virtual TClass* TBranchElement::GetClass ( ) const

inlinevirtual

Definition at line 182 of file TBranchElement.h.

Referenced by ClassImp(), ROOT::Internal::TTreeReaderArrayBase::GetBranchContentDataType(), InitializeOffsets(), and InitInfo().

virtual const char* TBranchElement::GetClassName ( ) const

inlinevirtual

Return the name of the user class whose content is stored in this branch, if any.

If this branch was created using the 'leaflist' technique, this function returns an empty string.

Reimplemented from TBranch.

Definition at line 181 of file TBranchElement.h.

Referenced by Browse(), TTree::CheckBranchAddressType(), TTreeFormula::EvalClass(), ROOT::Internal::TTreeReaderArrayBase::GetBranchContentDataType(), ROOT::Internal::TTreeReaderValueBase::GetBranchDataType(), TVirtualBranchBrowsable::GetCollectionContainedType(), ROOT::Internal::TTreeGeneratorBase::GetContainedClassName(), GetCurrentClass(), TBranchSTL::GetEntry(), TTreePlayer::MakeClass(), TTreeFormula::ParseWithLeaf(), Print(), ROOT::Detail::TBranchProxy::Setup(), SetupAddressesImpl(), and TTreeFormula::SwitchToFormLeafInfo().

Int_t TBranchElement::GetClassVersion ( )

inline

Definition at line 203 of file TBranchElement.h.

Referenced by TTree::CheckBranchAddressType().

virtual const char* TBranchElement::GetClonesName ( ) const

inlinevirtual

Definition at line 183 of file TBranchElement.h.

Referenced by Browse(), ROOT::Internal::TTreeReaderArrayBase::GetBranchContentDataType(), TVirtualBranchBrowsable::GetCollectionContainedType(), ROOT::Internal::TTreeGeneratorBase::GetContainedClassName(), InitializeOffsets(), and SetAddress().

TVirtualCollectionProxy * TBranchElement::GetCollectionProxy ( )

Return the collection proxy describing the branch content, if any.

Definition at line 2124 of file TBranchElement.cxx.

Referenced by BuildTitle(), FillLeavesAssociativeCollectionMember(), FillLeavesCollection(), FillLeavesCollectionMember(), FillLeavesCollectionSplitPtrMember(), FillLeavesCollectionSplitVectorPtrMember(), ROOT::Internal::TTreeReaderArrayBase::GetBranchContentDataType(), GetCollectionProxy(), TBranchSTL::GetEntry(), GetTypedValue(), Init(), InitInfo(), PrintValue(), ReadLeavesCollection(), ReadLeavesCollectionMember(), ReadLeavesCollectionSplitPtrMember(), ReadLeavesCollectionSplitVectorPtrMember(), ReleaseObject(), SetAddress(), SetFillActionSequence(), SetFillLeavesPtr(), SetReadActionSequence(), and ROOT::Detail::TBranchProxy::Setup().

TClass * TBranchElement::GetCurrentClass ( )

Return a pointer to the current type of the data member corresponding to branch element.

Definition at line 2191 of file TBranchElement.cxx.

Referenced by ROOT::Internal::TTreeReaderArrayBase::GetBranchContentDataType(), ROOT::Internal::TTreeReaderValueBase::GetBranchDataType(), SetAddress(), and PyROOT::TTreeGetAttr().

Int_t TBranchElement::GetEntry	(	Long64_t	entry = `0`,
		Int_t	getall = `0`
	)

virtual

Read all branches of a BranchElement and return total number of bytes.

If entry = 0, then use current entry number + 1.
If entry < 0, then reset entry number to 0.

Returns the number of bytes read from the input buffer.

If entry does not exist, then returns 0.
If an I/O error occurs, then returns -1.

See IMPORTANT REMARKS in TTree::GetEntry.

Reimplemented from TBranch.

Definition at line 2262 of file TBranchElement.cxx.

Referenced by ROOT::Internal::TTreeGeneratorBase::GetContainedClassName(), TBranchSTL::GetEntry(), and ROOT::Detail::TBranchProxy::Setup().

Int_t TBranchElement::GetExpectedType	(	TClass *&	expectedClass,
		EDataType &	expectedType
	)

virtual

Fill expectedClass and expectedType with information on the data type of the object/values contained in this branch (and thus the type of pointers expected to be passed to Set[Branch]Address return 0 in case of success and > 0 in case of failure.

Reimplemented from TBranch.

Definition at line 2354 of file TBranchElement.cxx.

Referenced by ROOT::Internal::TTreeReaderArrayBase::GetBranchContentDataType().

const char * TBranchElement::GetIconName ( ) const

virtual

Return icon name depending on type of branch element.

Reimplemented from TBranch.

Definition at line 2389 of file TBranchElement.cxx.

Int_t TBranchElement::GetID ( ) const

inline

TStreamerInfo * TBranchElement::GetInfo ( ) const

Get streamer info for the branch class.

Definition at line 998 of file TBranchElement.cxx.

Referenced by ROOT::Internal::TTreeProxyGenerator::AnalyzeBranches(), ROOT::Internal::TTreeReaderGenerator::AnalyzeBranches(), ROOT::Internal::TTreeProxyGenerator::AnalyzeTree(), ROOT::Internal::TTreeReaderGenerator::AnalyzeTree(), TTreeFormula::BranchHasMethod(), ClassImp(), ROOT::Internal::TTreeReaderValueBase::CreateProxy(), TTreeFormula::EvalClass(), TTreeFormula::FindLeafForExpression(), ROOT::Internal::TTreeReaderArrayBase::GetBranchContentDataType(), ROOT::Internal::TTreeReaderValueBase::GetBranchDataType(), TVirtualBranchBrowsable::GetCollectionContainedType(), TTreeFormula::GetLeafWithDatamember(), TFormLeafInfo::GetObjectAddress(), ROOT::Internal::TTreeGeneratorBase::GetStreamerInfo(), TTreeFormula::GetValueFromMethod(), TTreeFormula::GetValuePointerFromMethod(), TTreeFormula::IsLeafString(), TTreeFormula::ParseWithLeaf(), ROOT::Detail::TBranchProxy::Setup(), TTreeFormula::SwitchToFormLeafInfo(), and PyROOT::TTreeGetAttr().

TStreamerInfo * TBranchElement::GetInfoImp ( ) const

inlineprotected

Get streamer info for the branch class.

Definition at line 985 of file TBranchElement.cxx.

Referenced by Browse(), BuildTitle(), FillLeavesAssociativeCollectionMember(), FillLeavesClonesMember(), FillLeavesCollectionMember(), FillLeavesCollectionSplitPtrMember(), FillLeavesCollectionSplitVectorPtrMember(), FillLeavesMakeClass(), FillLeavesMember(), FillLeavesMemberCounter(), FindBranch(), FindLeaf(), GetCollectionProxy(), GetCurrentClass(), GetExpectedType(), GetInfo(), GetTypedValue(), GetTypeName(), GetValuePointer(), InitializeOffsets(), Print(), PrintValue(), ReadLeavesClonesMember(), ReadLeavesCollectionMember(), ReadLeavesCollectionSplitPtrMember(), ReadLeavesCollectionSplitVectorPtrMember(), ReadLeavesMakeClass(), ReadLeavesMember(), ReadLeavesMemberBranchCount(), ReadLeavesMemberCounter(), ReleaseObject(), SetAddress(), SetFillActionSequence(), SetReadActionSequence(), and SetupAddressesImpl().

Bool_t TBranchElement::GetMakeClass ( ) const

virtual

Return whether this branch is in a mode where the object are decomposed or not (Also known as MakeClass mode).

Reimplemented from TBranch.

Definition at line 2402 of file TBranchElement.cxx.

Int_t TBranchElement::GetMaximum ( ) const

virtual

Return maximum count value of the branchcount if any.

Definition at line 2410 of file TBranchElement.cxx.

Referenced by GetMaximum().

Int_t TBranchElement::GetNdata ( ) const

inline

Definition at line 195 of file TBranchElement.h.

Referenced by TFormLeafInfoMultiVarDim::LoadSizes(), ReadLeavesClonesMember(), ReadLeavesCollectionMember(), ReadLeavesCollectionSplitPtrMember(), ReadLeavesCollectionSplitVectorPtrMember(), and ReadLeavesMakeClass().

char * TBranchElement::GetObject ( ) const

Return a pointer to our object.

Definition at line 2421 of file TBranchElement.cxx.

Referenced by TTreeFormula::BranchHasMethod(), ROOT::Internal::TTreeGeneratorBase::GetContainedClassName(), TFormLeafInfo::GetObjectAddress(), TTreeFormula::GetValueFromMethod(), TTreeFormula::GetValuePointerFromMethod(), Print(), ROOT::Detail::TBranchProxy::Setup(), and PyROOT::TTreeGetAttr().

TClass * TBranchElement::GetParentClass ( )

protected

Return a pointer to the parent class of the branch element.

Definition at line 2430 of file TBranchElement.cxx.

Referenced by InitializeOffsets(), SetFillActionSequence(), and SetReadActionSequence().

virtual const char* TBranchElement::GetParentName ( ) const

inlinevirtual

Definition at line 193 of file TBranchElement.h.

Referenced by Print().

Int_t TBranchElement::GetStreamerType ( ) const

inline

Definition at line 197 of file TBranchElement.h.

Referenced by TTreeFormula::BranchHasMethod(), BuildTitle(), GetExpectedType(), TTreeFormula::GetLeafWithDatamember(), TTreePlayer::MakeClass(), and TTreeFormula::ParseWithLeaf().

virtual TClass* TBranchElement::GetTargetClass ( )

inlinevirtual

Definition at line 198 of file TBranchElement.h.

Referenced by PyROOT::TTreeGetAttr().

Int_t TBranchElement::GetType ( ) const

inline

Definition at line 196 of file TBranchElement.h.

Referenced by ROOT::Internal::TTreeProxyGenerator::AnalyzeBranches(), ROOT::Internal::TTreeReaderGenerator::AnalyzeBranches(), TTreeFormula::BranchHasMethod(), ClassImp(), ROOT::Internal::TTreeReaderArrayBase::GetBranchContentDataType(), ROOT::Internal::TTreeReaderValueBase::GetBranchDataType(), TTreePlayer::MakeClass(), TTreeFormula::ParseWithLeaf(), Print(), TTreePlayer::Scan(), ROOT::Detail::TBranchProxy::Setup(), SwitchContainer(), and TTreeFormula::SwitchToFormLeafInfo().

template<typename T >

T TBranchElement::GetTypedValue	(	Int_t	i,
		Int_t	len,
		Bool_t	subarr = `kFALSE`
	)		const

Definition at line 2488 of file TBranchElement.cxx.

const char * TBranchElement::GetTypeName ( ) const

virtual

Return type name of element in the branch.

Definition at line 2438 of file TBranchElement.cxx.

Referenced by ROOT::Internal::TTreeReaderArrayBase::GetBranchContentDataType(), and ROOT::Internal::TTreeReaderValueBase::GetBranchDataType().

Double_t TBranchElement::GetValue	(	Int_t	i,
		Int_t	len,
		Bool_t	subarr = `kFALSE`
	)		const

inline

Definition at line 200 of file TBranchElement.h.

Referenced by PrintValue(), ReadLeavesMakeClass(), ReadLeavesMemberBranchCount(), and ReadLeavesMemberCounter().

void * TBranchElement::GetValuePointer ( ) const

virtual

Returns pointer to first data element of this branch.

Currently used only for members of type character.

Definition at line 2590 of file TBranchElement.cxx.

void TBranchElement::Init	(	TTree *	tree,
		TBranch *	parent,
		const char *	bname,
		TStreamerInfo *	sinfo,
		Int_t	id,
		char *	pointer,
		Int_t	basketsize = `32000`,
		Int_t	splitlevel = `0`,
		Int_t	btype = `0`
	)

protected

Init when the branch object is not a TClonesArray nor an STL container.

If splitlevel > 0 this branch in turn is split into sub-branches.

Definition at line 269 of file TBranchElement.cxx.

Referenced by TBranchElement().

void TBranchElement::Init	(	TTree *	tree,
		TBranch *	parent,
		const char *	bname,
		TClonesArray *	clones,
		Int_t	basketsize = `32000`,
		Int_t	splitlevel = `0`,
		Int_t	compress = `-1`
	)

protected

Init when the branch object is a TClonesArray.

If splitlevel > 0 this branch in turn is split into sub branches.

Definition at line 701 of file TBranchElement.cxx.

void TBranchElement::Init	(	TTree *	tree,
		TBranch *	parent,
		const char *	bname,
		TVirtualCollectionProxy *	cont,
		Int_t	basketsize = `32000`,
		Int_t	splitlevel = `0`,
		Int_t	compress = `-1`
	)

protected

Init when the branch object is an STL collection.

If splitlevel > 0 this branch in turn is split into sub branches.

Definition at line 843 of file TBranchElement.cxx.

void TBranchElement::InitializeOffsets ( )

protectedvirtual

Initialize the base class subobjects offsets of our sub-branches and set fOffset if we are a container sub-branch.

Note: The offsets are zero for data members so that when SetAddress recursively sets their address, they will get the same address as their containing class because i/o is based on streamer info offsets from the addresss of the containing class.

Offsets are non-zero for base-class sub-branches that are not the leftmost direct base class. They are laid out in memory sequentially and only the leftmost direct base class has the same address as the derived class. The streamer offsets need to be added to the address of the base class subobject which is not the same as the address of the derived class for the non-leftmost direct base classes.

Definition at line 2673 of file TBranchElement.cxx.

Referenced by SetAddress().

void TBranchElement::InitInfo ( )

protectedvirtual

Init the streamer info for the branch class, try to compensate for class code unload/reload and schema evolution.

Definition at line 1899 of file TBranchElement.cxx.

Referenced by GetInfoImp().

Bool_t TBranchElement::IsBranchFolder ( ) const

inline

Definition at line 204 of file TBranchElement.h.

Referenced by TTreePlayer::MakeClass().

Bool_t TBranchElement::IsFolder ( ) const

virtual

Return kTRUE if more than one leaf, kFALSE otherwise.

Reimplemented from TBranch.

Definition at line 3273 of file TBranchElement.cxx.

Referenced by GetIconName().

Bool_t TBranchElement::IsMissingCollection ( ) const

protected

Detect a collection written using a zero pointer in old versions of root.

In versions of ROOT older than 4.00/03, if a collection (TClonesArray or STL container) was split but the pointer to the collection was zeroed out, nothing was saved. Hence there is no easy way to detect the case. In newer versions, a zero is written so that a 'missing' collection appears to be an empty collection.

Definition at line 3291 of file TBranchElement.cxx.

Referenced by ReadLeavesClones(), ReadLeavesCollection(), and ReadLeavesMakeClass().

virtual Bool_t TBranchElement::IsObjectOwner ( ) const

inlinevirtual

Definition at line 206 of file TBranchElement.h.

virtual Bool_t TBranchElement::Notify ( )

inlinevirtual

This method must be overridden to handle object notification.

Reimplemented from TObject.

Definition at line 207 of file TBranchElement.h.

TBranchElement& TBranchElement::operator= ( const TBranchElement & )

private

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

virtual

Print branch parameters.

Reimplemented from TBranch.

Definition at line 3331 of file TBranchElement.cxx.

Referenced by TBranchSTL::Print(), and Print().

void TBranchElement::PrintValue ( Int_t i ) const

Prints values of leaves.

Definition at line 3403 of file TBranchElement.cxx.

void TBranchElement::ReadLeavesClones ( TBuffer & b )

protected

Read leaves into i/o buffers for this branch.

Case of a TClonesArray (fType == 3).

Definition at line 3946 of file TBranchElement.cxx.

Referenced by SetReadLeavesPtr().

void TBranchElement::ReadLeavesClonesMember ( TBuffer & b )

protected

Read leaves into i/o buffers for this branch.

Case of a data member within a TClonesArray (fType == 31).

Definition at line 3983 of file TBranchElement.cxx.

Referenced by SetReadLeavesPtr().

void TBranchElement::ReadLeavesCollection ( TBuffer & b )

protected

Read leaves into i/o buffers for this branch.

Case of a collection (fType == 4).

Definition at line 3742 of file TBranchElement.cxx.

Referenced by SetReadLeavesPtr().

void TBranchElement::ReadLeavesCollectionMember ( TBuffer & b )

protected

Read leaves into i/o buffers for this branch.

Case of a data member within a collection (fType == 41).

Definition at line 3913 of file TBranchElement.cxx.

Referenced by SetReadLeavesPtr().

void TBranchElement::ReadLeavesCollectionSplitPtrMember ( TBuffer & b )

protected

Read leaves into i/o buffers for this branch.

Case of a data member within a collection (fType == 41).

Definition at line 3840 of file TBranchElement.cxx.

Referenced by SetReadLeavesPtr().

void TBranchElement::ReadLeavesCollectionSplitVectorPtrMember ( TBuffer & b )

protected

Read leaves into i/o buffers for this branch.

Case of a data member within a collection (fType == 41).

Definition at line 3882 of file TBranchElement.cxx.

Referenced by SetReadLeavesPtr().

void TBranchElement::ReadLeavesCustomStreamer ( TBuffer & b )

protected

Read leaves into i/o buffers for this branch.

Non TObject, Non collection classes with a custom streamer.

Definition at line 4131 of file TBranchElement.cxx.

Referenced by SetReadLeavesPtr().

void TBranchElement::ReadLeavesImpl ( TBuffer & b )

protected

Unconfiguration Read Leave function.

Definition at line 3489 of file TBranchElement.cxx.

Referenced by Init(), and TBranchElement().

void TBranchElement::ReadLeavesMakeClass ( TBuffer & b )

protected

Read leaves into i/o buffers for this branch.

For the case where the branch is set in MakeClass mode (decomposed object).

Definition at line 3498 of file TBranchElement.cxx.

Referenced by SetReadLeavesPtr().

void TBranchElement::ReadLeavesMember ( TBuffer & b )

protected

Read leaves into i/o buffers for this branch.

For split-class branch, base class branch, data member branch, or top-level branch. which do not have a branch count and are not a counter.

Definition at line 4020 of file TBranchElement.cxx.

Referenced by SetReadLeavesPtr().

void TBranchElement::ReadLeavesMemberBranchCount ( TBuffer & b )

protected

Read leaves into i/o buffers for this branch.

For split-class branch, base class branch, data member branch, or top-level branch. which do have a branch count and are not a counter.

Definition at line 4058 of file TBranchElement.cxx.

Referenced by SetReadLeavesPtr().

void TBranchElement::ReadLeavesMemberCounter ( TBuffer & b )

protected

Read leaves into i/o buffers for this branch.

For split-class branch, base class branch, data member branch, or top-level branch. which do not have a branch count and are a counter.

Definition at line 4095 of file TBranchElement.cxx.

Referenced by SetReadLeavesPtr().

void TBranchElement::ReleaseObject ( )

protected

Delete any object we may have allocated on a previous call to SetAddress.

Definition at line 4156 of file TBranchElement.cxx.

Referenced by ResetAddress(), and SetAddress().

void TBranchElement::Reset ( Option_t * option = "" )

virtual

Reset a Branch.

Existing i/o buffers are deleted. Entries, max and min are reset.

Reimplemented from TBranch.

Definition at line 4236 of file TBranchElement.cxx.

void TBranchElement::ResetAddress ( )

virtual

Set branch address to zero and free all allocated memory.

Reimplemented from TBranch.

Definition at line 4264 of file TBranchElement.cxx.

Referenced by Notify(), and ~TBranchElement().

void TBranchElement::ResetAfterMerge ( TFileMergeInfo * info )

virtual

Reset a Branch after a Merge operation (drop data but keep customizations)

Reimplemented from TBranch.

Definition at line 4251 of file TBranchElement.cxx.

void TBranchElement::ResetDeleteObject ( )

virtual

Release ownership of any allocated objects.

Note: This interface was added so that clone trees could be told they do not own the allocated objects.

Definition at line 4298 of file TBranchElement.cxx.

void TBranchElement::SetAddress ( void * addr )

virtual

Point this branch at an object.

For a sub-branch, addr is a pointer to the branch object.

For a top-level branch the meaning of addr is as follows:

If addr is zero, then we allocate a branch object internally and the branch is the owner of the allocated object, not the caller. However the caller may obtain a pointer to the branch object with GetObject().

Example:

branch->SetAddress(0);
Event* event = branch->GetObject();
... Do some work.

If addr is not zero, but the pointer addr points at is zero, then we allocate a branch object and set the passed pointer to point at the allocated object. The caller owns the allocated object and is responsible for deleting it when it is no longer needed.

Example:

Event* event = 0;
branch->SetAddress(&event);
... Do some work.
delete event;
event = 0;

If addr is not zero and the pointer addr points at is also not zero, then the caller has allocated a branch object and is asking us to use it. The caller owns it and must delete it when it is no longer needed.

Example:

Event* event = new Event();
branch->SetAddress(&event);
... Do some work.
delete event;
event = 0;

These rules affect users of TTree::Branch(), TTree::SetBranchAddress(), and TChain::SetBranchAddress() as well because those routines call this one.

An example of a tree with branches with objects allocated and owned by us:

TFile* f1 = new TFile("myfile_original.root");
TTree* t1 = (TTree*) f->Get("MyTree");
TFile* f2 = new TFile("myfile_copy.root", "recreate");
TTree* t2 = t1->Clone(0);
for (Int_t i = 0; i < 10; ++i) {
   t1->GetEntry(i);
   t2->Fill();
}
t2->Write()
delete f2;
f2 = 0;
delete f1;
f1 = 0;

An example of a branch with an object allocated by us, but owned by the caller:

TFile* f = new TFile("myfile.root", "recreate");
TTree* t = new TTree("t", "A test tree.")
Event* event = 0;
TBranchElement* br = t->Branch("event.", &event);
for (Int_t i = 0; i < 10; ++i) {
   ... Fill event with meaningful data in some way.
   t->Fill();
}
t->Write();
delete event;
event = 0;
delete f;
f = 0;

Notice that the only difference between this example and the following example is that the event pointer is zero when the branch is created.

An example of a branch with an object allocated and owned by the caller:

TFile* f = new TFile("myfile.root", "recreate");
TTree* t = new TTree("t", "A test tree.")
Event* event = new Event();
TBranchElement* br = t->Branch("event.", &event);
for (Int_t i = 0; i < 10; ++i) {
   ... Fill event with meaningful data in some way.
   t->Fill();
}
t->Write();
delete event;
event = 0;
delete f;
f = 0;

If AutoDelete is on (see TBranch::SetAutoDelete), the top level objet will be deleted and recreate each time an entry is read, whether or not the TTree owns the object.

Reimplemented from TBranch.

Definition at line 4419 of file TBranchElement.cxx.

Referenced by TTree::BronchExec(), TBranchSTL::Fill(), TBranchSTL::GetEntry(), GetEntry(), SetObject(), SetupAddressesImpl(), and ValidateAddress().

void TBranchElement::SetBasketSize ( Int_t buffsize )

virtual

Reset the basket size for all sub-branches of this branch element.

Reimplemented from TBranch.

Definition at line 4951 of file TBranchElement.cxx.

void TBranchElement::SetBranchCount ( TBranchElement * bre )

protected

Set the branch counter for this branch.

Definition at line 4964 of file TBranchElement.cxx.

Referenced by BuildTitle(), Init(), and ReadLeavesMakeClass().

void TBranchElement::SetBranchCount2 ( TBranchElement * bre )

inlineprotected

Definition at line 121 of file TBranchElement.h.

Referenced by BuildTitle().

virtual void TBranchElement::SetBranchFolder ( )

inlinevirtual

Definition at line 218 of file TBranchElement.h.

Referenced by TTree::Branch().

virtual void TBranchElement::SetClassName ( const char * name )

inlinevirtual

Definition at line 219 of file TBranchElement.h.

void TBranchElement::SetFillActionSequence ( )

protected

Set the sequence of actions needed to write the data out from the buffer.

Definition at line 5127 of file TBranchElement.cxx.

Referenced by InitInfo(), SetAddress(), and SetFillLeavesPtr().

void TBranchElement::SetFillLeavesPtr ( )

protected

Set the FillLeaves pointer to execute the expected operations.

Definition at line 5174 of file TBranchElement.cxx.

Referenced by BuildTitle(), Init(), InitInfo(), SetAddress(), SetMakeClass(), and SwitchContainer().

Bool_t TBranchElement::SetMakeClass ( Bool_t decomposeObj = kTRUE )

virtual

Set the branch in a mode where the object are decomposed (Also known as MakeClass mode).

Return whether the setting was possible (it is not possible for TBranch and TBranchObject).

Reimplemented from TBranch.

Definition at line 4989 of file TBranchElement.cxx.

Referenced by SetMakeClass().

void TBranchElement::SetObject ( void * objadd )

virtual

Set object this branch is pointing to.

Reimplemented from TBranch.

Definition at line 5010 of file TBranchElement.cxx.

Referenced by TTree::BronchExec().

void TBranchElement::SetOffset ( Int_t offset )

virtual

Set offset of the object (to which the data member represented by this branch belongs) inside its containing object (if any).

Reimplemented from TBranch.

Definition at line 5023 of file TBranchElement.cxx.

Referenced by InitializeOffsets().

void TBranchElement::SetParentClass ( TClass * clparent )

inline

Definition at line 245 of file TBranchElement.h.

Referenced by TTree::BronchExec(), SetTargetClass(), and Unroll().

virtual void TBranchElement::SetParentName ( const char * name )

inlinevirtual

Definition at line 222 of file TBranchElement.h.

void TBranchElement::SetReadActionSequence ( )

protected

Set the sequence of actions needed to read the data out of the buffer.

Definition at line 5040 of file TBranchElement.cxx.

Referenced by InitInfo(), SetAddress(), and SetReadLeavesPtr().

void TBranchElement::SetReadLeavesPtr ( )

protected

Set the ReadLeaves pointer to execute the expected operations.

Definition at line 5086 of file TBranchElement.cxx.

Referenced by BuildTitle(), Init(), InitInfo(), SetAddress(), SetMakeClass(), and SwitchContainer().

void TBranchElement::SetTargetClass ( const char * name )

virtual

Set the name of the class of the in-memory object into which the data will loaded.

Definition at line 5218 of file TBranchElement.cxx.

Referenced by TTree::CheckBranchAddressType(), InitializeOffsets(), SetAddress(), and SetTargetClass().

virtual void TBranchElement::SetType ( Int_t btype )

inlinevirtual

Definition at line 225 of file TBranchElement.h.

Referenced by BuildTitle(), SetAddress(), SwitchContainer(), and Unroll().

void TBranchElement::SetupAddresses ( )

virtual

If the branch address is not set, we set all addresses starting with the top level parent branch.

This is required to be done in order for GetOffset to be correct and for GetEntry to run.

Reimplemented from TBranch.

Definition at line 5255 of file TBranchElement.cxx.

Referenced by TTreeFormula::ParseWithLeaf().

void TBranchElement::SetupAddressesImpl ( )

protected

If the branch address is not set, we set all addresses starting with the top level parent branch.

This is required to be done in order for GetOffset to be correct and for GetEntry to run.

Definition at line 5272 of file TBranchElement.cxx.

Referenced by GetEntry(), and SetupAddresses().

void TBranchElement::SwitchContainer ( TObjArray * branches )

staticprivate

Modify the container type of the branches.

Definition at line 93 of file TBranchElement.cxx.

Referenced by SetAddress().

Int_t TBranchElement::Unroll	(	const char *	name,
		TClass *	clParent,
		TClass *	cl,
		char *	ptr,
		Int_t	basketsize,
		Int_t	splitlevel,
		Int_t	btype
	)

protected

Split class cl into sub-branches of this branch.

Create a sub-branch of this branch for each non-empty, non-abstract base class of cl (unless we are a sub-branch of a TClonesArray or an STL container, in which case we do not create a sub-branch), and for each non-split data member of cl.

Note: We do not create sub-branches for base classes of cl if we are a sub-branch of a TClonesArray or an STL container.

Note: We do not create sub-branches for data members which have a class type and which we are splitting.

Note: The above rules imply that the branch heirarchy increases in depth only for base classes of cl (unless we are inside of a TClonesArray or STL container, in which case the depth does not increase, the base class is elided) and for TClonesArray or STL container data members (which have one additional level of sub-branches). The only other way the depth increases is when the top-level branch has a split class data member, in that case the constructor will create a sub-branch for it. In other words, the interior nodes of the branch tree are all either: base class nodes; split class nodes which are direct sub-branches of top-level nodes (created by TClass::Bronch usually); or TClonesArray or STL container master nodes.

Note: The exception to the above is for the top-level branches, Tree::Bronch creates nodes for everything in that case, except for a TObject base class of a class which has the can ignore tobject streamer flag set.

Definition at line 5467 of file TBranchElement.cxx.

Referenced by Init().

void TBranchElement::UpdateFile ( )

virtual

Refresh the value of fDirectory (i.e.

where this branch writes/reads its buffers) with the current value of fTree->GetCurrentFile unless this branch has been redirected to a different file. Also update the sub-branches.

Reimplemented from TBranch.

Definition at line 5671 of file TBranchElement.cxx.

void TBranchElement::ValidateAddress ( ) const

inlineprotected