Logo ROOT   master
Reference Guide
TBranchObject Class Reference

A Branch for the case of an object.

Definition at line 26 of file TBranchObject.h.

Public Member Functions

 TBranchObject ()
 Default constructor for BranchObject. More...
 
 TBranchObject (TBranch *parent, const char *name, const char *classname, void *addobj, Int_t basketsize=32000, Int_t splitlevel=0, Int_t compress=ROOT::RCompressionSetting::EAlgorithm::kInherit, Bool_t isptrptr=kTRUE)
 Create a BranchObject. More...
 
 TBranchObject (TTree *tree, const char *name, const char *classname, void *addobj, Int_t basketsize=32000, Int_t splitlevel=0, Int_t compress=ROOT::RCompressionSetting::EAlgorithm::kInherit, Bool_t isptrptr=kTRUE)
 Create a BranchObject. More...
 
virtual ~TBranchObject ()
 Destructor for a BranchObject. More...
 
virtual void Browse (TBrowser *b)
 Browse the branch content. More...
 
virtual const char * GetClassName () const
 Return the name of the user class whose content is stored in this branch, if any. More...
 
virtual Int_t GetEntry (Long64_t entry=0, Int_t getall=0)
 Read all branches of a BranchObject 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...
 
virtual const char * GetObjClassName ()
 
Bool_t IsFolder () const
 Return TRUE if more than one leaf or if fBrowsables, FALSE otherwise. More...
 
virtual void Print (Option_t *option="") const
 Print TBranch parameters. 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 SetAddress (void *addobj)
 Set address of this branch. More...
 
virtual void SetAutoDelete (Bool_t autodel=kTRUE)
 Set the AutoDelete bit. More...
 
virtual void SetBasketSize (Int_t buffsize)
 Reset basket size for all subbranches of this branch. 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 UpdateAddress ()
 Update branch addresses if a new object was created. More...
 
- Public Member Functions inherited from TBranch
 TBranch ()
 Default constructor. Used for I/O by default. More...
 
 TBranch (TTree *tree, const char *name, void *address, const char *leaflist, Int_t basketsize=32000, Int_t compress=ROOT::RCompressionSetting::EAlgorithm::kInherit)
 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=ROOT::RCompressionSetting::EAlgorithm::kInherit)
 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...
 
Int_t BackFill ()
 Loop on all leaves of this branch to back fill Basket buffer. 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 Fill ()
 
virtual TBranchFindBranch (const char *name)
 Find the immediate sub-branch with passed name. More...
 
virtual TLeafFindLeaf (const char *name)
 Find the leaf corresponding to the name 'searchname'. 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...
 
virtual char * GetAddress () const
 
TBasketGetBasket (Int_t basket)
 
Int_tGetBasketBytes () const
 
Long64_tGetBasketEntry () const
 
virtual Long64_t GetBasketSeek (Int_t basket) const
 Return address of basket in the file. More...
 
virtual Int_t GetBasketSize () const
 
virtual TListGetBrowsables ()
 Returns (and, if 0, creates) browsable objects for this branch See TVirtualBranchBrowsable::FillListOfBrowsables. More...
 
ROOT::Experimental::Internal::TBulkBranchReadGetBulkRead ()
 
Int_t GetCompressionAlgorithm () const
 
Int_t GetCompressionLevel () const
 
Int_t GetCompressionSettings () const
 
TDirectoryGetDirectory () const
 
Long64_t GetEntries () 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...
 
Long64_t GetEntryNumber () const
 
Int_t GetEntryOffsetLen () const
 
Int_t GetEvent (Long64_t entry=0)
 
virtual TFileGetFile (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
 
Long64_t GetFirstEntry () const
 
const char * GetIconName () const
 Return icon name depending on type of branch. More...
 
TIOFeatures GetIOFeatures () const
 Returns the IO settings currently in use for this branch. More...
 
virtual TLeafGetLeaf (const char *name) const
 Return pointer to the 1st Leaf named name in thisBranch. More...
 
TObjArrayGetListOfBaskets ()
 
TObjArrayGetListOfBranches ()
 
TObjArrayGetListOfLeaves ()
 
virtual 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...
 
Int_t GetMaxBaskets () const
 
TBranchGetMother () const
 Get our top-level parent branch in the tree. More...
 
Int_t GetNleaves () const
 
Int_t GetOffset () const
 
Int_t GetReadBasket () const
 
Long64_t GetReadEntry () const
 
virtual Int_t GetRow (Int_t row)
 Return all elements of one row unpacked in internal array fValues [Actually just returns 1 (?)]. More...
 
Int_t GetSplitLevel () const
 
TBranchGetSubBranch (const TBranch *br) const
 Find the parent branch of child. More...
 
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...
 
TBufferGetTransientBuffer (Int_t size)
 Returns the transient buffer currently used by this TBranch for reading/writing baskets. More...
 
TTreeGetTree () const
 
Int_t GetWriteBasket () const
 
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...
 
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...
 
void PrintCacheInfo () const
 Print the information we have about which basket is currently cached and whether they have been 'used'/'read' from the cache. 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 ResetAddress ()
 Reset the address of the branch. More...
 
virtual void ResetReadEntry ()
 
virtual void SetBufferAddress (TBuffer *entryBuffer)
 Set address of this branch directly from a TBuffer to avoid streaming. More...
 
void SetCompressionAlgorithm (Int_t algorithm=ROOT::RCompressionSetting::EAlgorithm::kUseGlobal)
 Set compression algorithm. More...
 
void SetCompressionLevel (Int_t level=ROOT::RCompressionSetting::ELevel::kUseMin)
 Set compression level. More...
 
void SetCompressionSettings (Int_t settings=ROOT::RCompressionSetting::EDefaults::kUseCompiledDefault)
 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 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 SetFirstEntry (Long64_t entry)
 set the first entry number (case of TBranchSTL) More...
 
void SetIOFeatures (TIOFeatures &features)
 
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 SetOffset (Int_t offset=0)
 
virtual void SetStatus (Bool_t status=1)
 Set branch status to Process or DoNotProcess. More...
 
virtual void SetTree (TTree *tree)
 
Bool_t SupportsBulkRead () const
 Returns true if this branch supports bulk IO, false otherwise. More...
 
virtual void UpdateFile ()
 Refresh the value of fDirectory (i.e. More...
 
- 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 ()
 TNamed destructor. More...
 
virtual void Clear (Option_t *option="")
 Set name and title to empty strings (""). More...
 
virtual TObjectClone (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...
 
TNamedoperator= (const TNamed &rhs)
 TNamed assignment operator. 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...
 
ULong_t CheckedHash ()
 Check and record whether this class has a consistent Hash/RecursiveRemove setup (*) and then return the regular Hash value for this object. More...
 
virtual const char * ClassName () const
 Returns name of class to which the object belongs. More...
 
virtual void 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 TObjectDrawClone (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 TObjectFindObject (const char *name) const
 Must be redefined in derived classes. More...
 
virtual TObjectFindObject (const TObject *obj) const
 Must be redefined in derived classes. More...
 
virtual Option_tGetDrawOption () const
 Get option used by the graphics system to draw this 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_tGetOption () 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...
 
Bool_t HasInconsistentHash () const
 Return true is the type of this object is known to have an inconsistent setup for Hash and RecursiveRemove (i.e. More...
 
virtual void Info (const char *method, const char *msgfmt,...) const
 Issue info message. More...
 
virtual Bool_t InheritsFrom (const char *classname) const
 Returns kTRUE if object inherits from class "classname". More...
 
virtual Bool_t InheritsFrom (const TClass *cl) const
 Returns kTRUE if object inherits from TClass cl. More...
 
virtual void Inspect () const
 Dump contents of this object in a graphics canvas. More...
 
void InvertBit (UInt_t f)
 
virtual Bool_t IsEqual (const TObject *obj) const
 Default equal comparison (objects are equal if they have the same address in memory). More...
 
R__ALWAYS_INLINE Bool_t IsOnHeap () const
 
R__ALWAYS_INLINE 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...
 
voidoperator new (size_t sz)
 
voidoperator new (size_t sz, void *vp)
 
voidoperator new[] (size_t sz)
 
voidoperator new[] (size_t sz, void *vp)
 
TObjectoperator= (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...
 
R__ALWAYS_INLINE Bool_t TestBit (UInt_t f) const
 
Int_t TestBits (UInt_t f) const
 
virtual void UseCurrentStyle ()
 Set current style settings in this object This function is called when either TCanvas::UseCurrentStyle or TROOT::ForceStyle have been invoked. More...
 
virtual void Warning (const char *method, const char *msgfmt,...) const
 Issue warning message. More...
 
virtual Int_t Write (const char *name=0, Int_t option=0, Int_t bufsize=0)
 Write this object to the current directory. More...
 
virtual Int_t Write (const char *name=0, Int_t option=0, Int_t bufsize=0) const
 Write this object to the current directory. More...
 
- Public Member Functions inherited from TAttFill
 TAttFill ()
 AttFill default constructor. More...
 
 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
 Return the fill area color. More...
 
virtual Style_t GetFillStyle () const
 Return the fill area style. More...
 
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)
 Set the fill area color. More...
 
virtual void SetFillColorAlpha (Color_t fcolor, Float_t falpha)
 Set a transparent fill color. More...
 
virtual void SetFillStyle (Style_t fstyle)
 Set the fill area style. More...
 

Protected Types

enum  EStatusBits { kWarn = BIT(14) }
 
enum  EStatusBitsOldValues { kOldWarn = BIT(12) }
 
- Protected Types inherited from TBranch
using BulkObj = ROOT::Experimental::Internal::TBulkBranchRead
 
using CacheInfo_t = ROOT::Internal::TBranchCacheInfo
 
enum  EStatusBits {
  kDoNotProcess = ::kDoNotProcess, kIsClone = ::kIsClone, kBranchObject = ::kBranchObject, kBranchAny = ::kBranchAny,
  kAutoDelete = BIT(15), kDoNotUseBufferMap = BIT(22)
}
 
typedef void(TBranch::* FillLeaves_t) (TBuffer &b)
 
typedef void(TBranch::* ReadLeaves_t) (TBuffer &b)
 

Protected Member Functions

void Init (TTree *tree, TBranch *parent, const char *name, const char *classname, void *addobj, Int_t basketsize, Int_t splitlevel, Int_t compress, Bool_t isptrptr)
 Initialization routine (run from the constructor so do not make this function virtual) More...
 
- Protected Member Functions inherited from TBranch
void FillLeavesImpl (TBuffer &b)
 Loop on all leaves of this branch to fill Basket buffer. More...
 
TBasketGetFreshBasket (TBuffer *user_buffer)
 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...
 
TBasketGetFreshCluster ()
 Drops the cluster two behind the current cluster and returns a fresh basket by either reusing or creating a new one. More...
 
TString GetRealFileName () const
 Get real file name. More...
 
void Init (const char *name, const char *leaflist, Int_t compress)
 
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 ReadLeavesImpl (TBuffer &b)
 Loop on all leaves of this branch to read Basket buffer. More...
 
void SetSkipZip (Bool_t skip=kTRUE)
 
Int_t WriteBasket (TBasket *basket, Int_t where)
 
- 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

TString fClassName
 Class name of referenced object. More...
 
TObjectfOldObject
 !Pointer to old object More...
 
- Protected Attributes inherited from TBranch
char * fAddress
 ! Address of 1st leaf (variable or object) More...
 
Int_tfBasketBytes
 [fMaxBaskets] Length of baskets on file More...
 
Long64_tfBasketEntry
 [fMaxBaskets] Table of first entry in each basket More...
 
TObjArray fBaskets
 -> List of baskets of this branch More...
 
Long64_tfBasketSeek
 [fMaxBaskets] Addresses of baskets on file More...
 
Int_t fBasketSize
 Initial Size of Basket Buffer. More...
 
TObjArray fBranches
 -> List of Branches of this branch More...
 
TListfBrowsables
 ! List of TVirtualBranchBrowsables used for Browse() More...
 
BulkObj fBulk
 ! Helper for performing bulk IO More...
 
CacheInfo_t fCacheInfo
 ! Hold info about which basket are in the cache and if they have been retrieved from the cache. More...
 
Int_t fCompress
 Compression level and algorithm. More...
 
TBasketfCurrentBasket
 ! Pointer to the current basket. More...
 
TDirectoryfDirectory
 ! Pointer to directory where this branch buffers are stored More...
 
Long64_t fEntries
 Number of entries. More...
 
TBufferfEntryBuffer
 ! Buffer used to directly pass the content without streaming More...
 
Long64_t fEntryNumber
 Current entry number (last one filled in this branch) More...
 
Int_t fEntryOffsetLen
 Initial Length of fEntryOffset table in the basket buffers. More...
 
TBasketfExtraBasket
 ! Allocated basket not currently holding any data. More...
 
TString fFileName
 Name of file where buffers are stored ("" if in same file as Tree header) More...
 
FillLeaves_t fFillLeaves
 ! Pointer to the FillLeaves implementation to use. More...
 
Long64_t fFirstBasketEntry
 ! First entry in the current basket. More...
 
Long64_t fFirstEntry
 Number of the first entry in this branch. More...
 
TIOFeatures fIOFeatures
 IO features for newly-created baskets. More...
 
TObjArray fLeaves
 -> List of leaves of this branch More...
 
Int_t fMaxBaskets
 Maximum number of Baskets so far. More...
 
TBranchfMother
 ! Pointer to top-level parent branch in the tree. More...
 
Int_t fNBaskets
 ! Number of baskets in memory More...
 
Long64_t fNextBasketEntry
 ! Next entry that will requires us to go to the next basket More...
 
Int_t fNleaves
 ! Number of leaves More...
 
Int_t fOffset
 Offset of this branch. More...
 
TBranchfParent
 ! Pointer to parent branch. More...
 
Int_t fReadBasket
 ! Current basket number when reading More...
 
Long64_t fReadEntry
 ! Current entry number when reading More...
 
ReadLeaves_t fReadLeaves
 ! Pointer to the ReadLeaves implementation to use. More...
 
Bool_t fSkipZip
 ! After being read, the buffer will not be unzipped. More...
 
Int_t fSplitLevel
 Branch split level. More...
 
Long64_t fTotBytes
 Total number of bytes in all leaves before compression. More...
 
TBufferfTransientBuffer
 ! Pointer to the current transient buffer. More...
 
TTreefTree
 ! Pointer to Tree header More...
 
Int_t fWriteBasket
 Last basket number written. More...
 
Long64_t fZipBytes
 Total number of bytes in all leaves after compression. More...
 
- Protected Attributes inherited from TNamed
TString fName
 
TString fTitle
 
- Protected Attributes inherited from TAttFill
Color_t fFillColor
 Fill area color. More...
 
Style_t fFillStyle
 Fill area style. More...
 

Private Member Functions

virtual Int_t FillImpl (ROOT::Internal::TBranchIMTHelper *)
 Loop on all leaves of this branch to fill Basket buffer. More...
 

Additional Inherited Members

- Public Types inherited from TObject
enum  {
  kIsOnHeap = 0x01000000, kNotDeleted = 0x02000000, kZombie = 0x04000000, kInconsistent = 0x08000000,
  kBitMask = 0x00ffffff
}
 
enum  { kSingleKey = BIT(0), kOverwrite = BIT(1), kWriteDelete = BIT(2) }
 
enum  EDeprecatedStatusBits { kObjInCanvas = BIT(3) }
 
enum  EStatusBits {
  kCanDelete = BIT(0), kMustCleanup = BIT(3), kIsReferenced = BIT(4), kHasUUID = BIT(5),
  kCannotPick = BIT(6), kNoContextMenu = BIT(8), kInvalidObject = BIT(13)
}
 
- Static Public Member Functions inherited from 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 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...
 
- Static Protected Attributes inherited from TBranch
static Int_t fgCount = 0
 ! branch counter More...
 

#include <TBranchObject.h>

Inheritance diagram for TBranchObject:
[legend]

Member Enumeration Documentation

◆ EStatusBits

Enumerator
kWarn 

Definition at line 29 of file TBranchObject.h.

◆ EStatusBitsOldValues

Enumerator
kOldWarn 

Definition at line 38 of file TBranchObject.h.

Constructor & Destructor Documentation

◆ TBranchObject() [1/3]

TBranchObject::TBranchObject ( )

Default constructor for BranchObject.

Definition at line 40 of file TBranchObject.cxx.

◆ TBranchObject() [2/3]

TBranchObject::TBranchObject ( TBranch parent,
const char *  name,
const char *  classname,
void addobj,
Int_t  basketsize = 32000,
Int_t  splitlevel = 0,
Int_t  compress = ROOT::RCompressionSetting::EAlgorithm::kInherit,
Bool_t  isptrptr = kTRUE 
)

Create a BranchObject.

Definition at line 59 of file TBranchObject.cxx.

◆ TBranchObject() [3/3]

TBranchObject::TBranchObject ( TTree tree,
const char *  name,
const char *  classname,
void addobj,
Int_t  basketsize = 32000,
Int_t  splitlevel = 0,
Int_t  compress = ROOT::RCompressionSetting::EAlgorithm::kInherit,
Bool_t  isptrptr = kTRUE 
)

Create a BranchObject.

Definition at line 50 of file TBranchObject.cxx.

◆ ~TBranchObject()

TBranchObject::~TBranchObject ( )
virtual

Destructor for a BranchObject.

Definition at line 150 of file TBranchObject.cxx.

Member Function Documentation

◆ Browse()

void TBranchObject::Browse ( TBrowser b)
virtual

Browse the branch content.

Reimplemented from TBranch.

Definition at line 158 of file TBranchObject.cxx.

◆ FillImpl()

Int_t TBranchObject::FillImpl ( ROOT::Internal::TBranchIMTHelper imtHelper)
privatevirtual

Loop on all leaves of this branch to fill Basket buffer.

Reimplemented from TBranch.

Definition at line 172 of file TBranchObject.cxx.

◆ GetClassName()

virtual const char* TBranchObject::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 54 of file TBranchObject.h.

◆ GetEntry()

Int_t TBranchObject::GetEntry ( Long64_t  entry = 0,
Int_t  getall = 0 
)
virtual

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

  • If entry = 0 take current entry number + 1
  • If entry < 0 reset entry number to 0

The function returns the number of bytes read from the input buffer.

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

Reimplemented from TBranch.

Definition at line 206 of file TBranchObject.cxx.

◆ GetExpectedType()

Int_t TBranchObject::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 242 of file TBranchObject.cxx.

◆ GetObjClassName()

virtual const char* TBranchObject::GetObjClassName ( )
inlinevirtual

Definition at line 55 of file TBranchObject.h.

◆ Init()

void TBranchObject::Init ( TTree tree,
TBranch parent,
const char *  name,
const char *  classname,
void addobj,
Int_t  basketsize,
Int_t  splitlevel,
Int_t  compress,
Bool_t  isptrptr 
)
protected

Initialization routine (run from the constructor so do not make this function virtual)

Definition at line 68 of file TBranchObject.cxx.

◆ IsFolder()

Bool_t TBranchObject::IsFolder ( ) const
virtual

Return TRUE if more than one leaf or if fBrowsables, FALSE otherwise.

Reimplemented from TBranch.

Definition at line 258 of file TBranchObject.cxx.

◆ Print()

void TBranchObject::Print ( Option_t option = "") const
virtual

Print TBranch parameters.

Reimplemented from TBranch.

Definition at line 274 of file TBranchObject.cxx.

◆ Reset()

void TBranchObject::Reset ( Option_t option = "")
virtual

Reset a branch.

  • Existing buffers are deleted.
  • Entries, max and min are reset.

Reimplemented from TBranch.

Definition at line 298 of file TBranchObject.cxx.

◆ ResetAfterMerge()

void TBranchObject::ResetAfterMerge ( TFileMergeInfo info)
virtual

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

Reimplemented from TBranch.

Definition at line 311 of file TBranchObject.cxx.

◆ SetAddress()

void TBranchObject::SetAddress ( void addobj)
virtual

Set address of this branch.

Reimplemented from TBranch.

Definition at line 325 of file TBranchObject.cxx.

◆ SetAutoDelete()

void TBranchObject::SetAutoDelete ( Bool_t  autodel = kTRUE)
virtual

Set the AutoDelete bit.

This function can be used to instruct Root in TBranchObject::ReadBasket to not delete the object referenced by a branchobject before reading a new entry. By default, the object is deleted.

  • If autodel is kTRUE, this existing object will be deleted, a new object created by the default constructor, then object->Streamer called.
  • If autodel is kFALSE, the existing object is not deleted. Root assumes that the user is taking care of deleting any internal object or array This can be done in Streamer itself.
  • If this branch has sub-branches, the function sets autodel for these branches as well. We STRONGLY suggest to activate this option by default when you create the top level branch. This will make the read phase more efficient because it minimizes the numbers of new/delete operations. Once this option has been set and the Tree is written to a file, it is not necessary to specify the option again when reading, unless you want to set the opposite mode.

Reimplemented from TBranch.

Definition at line 517 of file TBranchObject.cxx.

◆ SetBasketSize()

void TBranchObject::SetBasketSize ( Int_t  buffsize)
virtual

Reset basket size for all subbranches of this branch.

Reimplemented from TBranch.

Definition at line 531 of file TBranchObject.cxx.

◆ SetupAddresses()

void TBranchObject::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 594 of file TBranchObject.cxx.

◆ UpdateAddress()

void TBranchObject::UpdateAddress ( )
virtual

Update branch addresses if a new object was created.

Reimplemented from TBranch.

Definition at line 615 of file TBranchObject.cxx.

Member Data Documentation

◆ fClassName

TString TBranchObject::fClassName
protected

Class name of referenced object.

Definition at line 42 of file TBranchObject.h.

◆ fOldObject

TObject* TBranchObject::fOldObject
protected

!Pointer to old object

Definition at line 43 of file TBranchObject.h.

Libraries for TBranchObject:
[legend]

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