A TTree is a list of TBranches.
A TBranch supports:
See TBranch structure in TTree.
See also specialized branches:
Public Types | |
| enum | { kSingleKey = (1ULL << (0)) , kOverwrite = (1ULL << (1)) , kWriteDelete = (1ULL << (2)) } |
| enum | { kIsOnHeap = 0x01000000 , kNotDeleted = 0x02000000 , kZombie = 0x04000000 , kInconsistent = 0x08000000 , kBitMask = 0x00ffffff } |
| enum | EDeprecatedStatusBits { kObjInCanvas = (1ULL << (3)) } |
| using | TIOFeatures = ROOT::TIOFeatures |
Public Member Functions | |
| TBranch () | |
| Default constructor. Used for I/O by default. | |
| 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. | |
| 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. | |
| ~TBranch () override | |
| Destructor. | |
| void | AbstractMethod (const char *method) const |
| Call this function within a function that you don't want to define as purely virtual, in order not to force all users deriving from that class to implement that maybe (on their side) unused function; but at the same time, emit a run-time warning if they try to call it, telling that it is not implemented in the derived class: action must thus be taken on the user side to override it. | |
| virtual void | AddBasket (TBasket &b, bool ondisk, Long64_t startEntry) |
| Add the basket to this branch. | |
| virtual void | AddLastBasket (Long64_t startEntry) |
| Add the start entry of the write basket (not yet created). | |
| virtual void | AppendPad (Option_t *option="") |
| Append graphics object to current pad. | |
| Int_t | BackFill () |
| Loop on all leaves of this branch to back fill Basket buffer. | |
| void | Browse (TBrowser *b) override |
| Browser interface. | |
| 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. | |
| virtual const char * | ClassName () const |
| Returns name of class to which the object belongs. | |
| void | Clear (Option_t *option="") override |
| Set name and title to empty strings (""). | |
| TObject * | Clone (const char *newname="") const override |
| Make a clone of an object using the Streamer facility. | |
| Int_t | Compare (const TObject *obj) const override |
| Compare two TNamed objects. | |
| void | Copy (TAttFill &attfill) const |
| void | Copy (TObject &named) const override |
| Copy this to obj. | |
| virtual void | Delete (Option_t *option="") |
| Delete this object. | |
| virtual void | DeleteBaskets (Option_t *option="") |
| Loop on all branch baskets. | |
| virtual Int_t | DistancetoPrimitive (Int_t px, Int_t py) |
| Computes distance from point (px,py) to the object. | |
| virtual void | Draw (Option_t *option="") |
| Default Draw method for all objects. | |
| virtual void | DrawClass () const |
| Draw class inheritance tree of the class to which this object belongs. | |
| virtual TObject * | DrawClone (Option_t *option="") const |
| Draw a clone of this object in the current selected pad with: gROOT->SetSelectedPad(c1). | |
| virtual void | DropBaskets (Option_t *option="") |
| Loop on all branch baskets. | |
| virtual void | Dump () const |
| Dump contents of object on stdout. | |
| virtual void | Error (const char *method, const char *msgfmt,...) const |
| Issue error message. | |
| virtual void | Execute (const char *method, const char *params, Int_t *error=nullptr) |
| Execute method on this object with the given parameter string, e.g. | |
| virtual void | Execute (TMethod *method, TObjArray *params, Int_t *error=nullptr) |
| Execute method on this object with parameters stored in the TObjArray. | |
| virtual void | ExecuteEvent (Int_t event, Int_t px, Int_t py) |
| Execute action corresponding to an event at (px,py). | |
| void | ExpandBasketArrays () |
| Increase BasketEntry buffer of a minimum of 10 locations and a maximum of 50 per cent of current size. | |
| virtual void | Fatal (const char *method, const char *msgfmt,...) const |
| Issue fatal error message. | |
| Int_t | Fill () |
| virtual void | FillBuffer (char *&buffer) |
| Encode TNamed into output buffer. | |
| virtual Int_t | FillImpl (ROOT::Internal::TBranchIMTHelper *) |
| Loop on all leaves of this branch to fill Basket buffer. | |
| virtual TBranch * | FindBranch (const char *name) |
| Find the immediate sub-branch with passed name. | |
| virtual TLeaf * | FindLeaf (const char *name) |
| Find the leaf corresponding to the name 'searchname'. | |
| virtual TObject * | FindObject (const char *name) const |
| Must be redefined in derived classes. | |
| virtual TObject * | FindObject (const TObject *obj) const |
| Must be redefined in derived classes. | |
| Int_t | FlushBaskets () |
| Flush to disk all the baskets of this branch and any of subbranches. | |
| 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. | |
| virtual char * | GetAddress () const |
| TBasket * | GetBasket (Int_t basket) |
| Int_t * | GetBasketBytes () const |
| Long64_t * | GetBasketEntry () const |
| virtual Long64_t | GetBasketSeek (Int_t basket) const |
| Return address of basket in the file. | |
| virtual Int_t | GetBasketSize () const |
| virtual TList * | GetBrowsables () |
| Returns (and, if 0, creates) browsable objects for this branch See TVirtualBranchBrowsable::FillListOfBrowsables. | |
| ROOT::Experimental::Internal::TBulkBranchRead & | GetBulkRead () |
| virtual const char * | GetClassName () const |
| Return the name of the user class whose content is stored in this branch, if any. | |
| Int_t | GetCompressionAlgorithm () const |
| Int_t | GetCompressionLevel () const |
| Int_t | GetCompressionSettings () const |
| TDirectory * | GetDirectory () const |
| virtual Option_t * | GetDrawOption () const |
| Get option used by the graphics system to draw this object. | |
| Long64_t | GetEntries () const |
| virtual Int_t | GetEntry (Long64_t entry=0, Int_t getall=0) |
| Read all leaves of entry and return total number of bytes read. | |
| 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. | |
| Long64_t | GetEntryNumber () const |
| Int_t | GetEntryOffsetLen () const |
| Int_t | GetEvent (Long64_t entry=0) |
| 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. | |
| 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. | |
| const char * | GetFileName () const |
| virtual Color_t | GetFillColor () const |
| Return the fill area color. | |
| virtual Style_t | GetFillStyle () const |
| Return the fill area style. | |
| Long64_t | GetFirstEntry () const |
| virtual TString | GetFullName () const |
| Return the 'full' name of the branch. | |
| const char * | GetIconName () const override |
| Return icon name depending on type of branch. | |
| TIOFeatures | GetIOFeatures () const |
| Returns the IO settings currently in use for this branch. | |
| virtual TLeaf * | GetLeaf (const char *name) const |
| Return pointer to the 1st Leaf named name in thisBranch. | |
| TObjArray * | GetListOfBaskets () |
| TObjArray * | GetListOfBranches () |
| TObjArray * | GetListOfLeaves () |
| virtual bool | GetMakeClass () const |
| Return whether this branch is in a mode where the object are decomposed or not (Also known as MakeClass mode). | |
| Int_t | GetMaxBaskets () const |
| TBranch * | GetMother () const |
| Get our top-level parent branch in the tree. | |
| const char * | GetName () const override |
| Returns name of object. | |
| Int_t | GetNleaves () const |
| virtual char * | GetObjectInfo (Int_t px, Int_t py) const |
| Returns string containing info about the object at position (px,py). | |
| Int_t | GetOffset () const |
| virtual Option_t * | GetOption () 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 (?)]. | |
| Int_t | GetSplitLevel () const |
| TBranch * | GetSubBranch (const TBranch *br) const |
| Find the parent branch of child. | |
| const char * | GetTitle () const override |
| Returns title of object. | |
| Long64_t | GetTotalSize (Option_t *option="") const |
| Return total number of bytes in the branch (including current buffer). | |
| 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. | |
| TBuffer * | GetTransientBuffer (Int_t size) |
| Returns the transient buffer currently used by this TBranch for reading/writing baskets. | |
| TTree * | GetTree () const |
| virtual UInt_t | GetUniqueID () const |
| Return the unique object id. | |
| 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. | |
| virtual Bool_t | HandleTimer (TTimer *timer) |
| Execute action in response of a timer timing out. | |
| ULong_t | Hash () const override |
| Return hash value for this object. | |
| 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. | |
| virtual void | Info (const char *method, const char *msgfmt,...) const |
| Issue info message. | |
| virtual Bool_t | InheritsFrom (const char *classname) const |
| Returns kTRUE if object inherits from class "classname". | |
| virtual Bool_t | InheritsFrom (const TClass *cl) const |
| Returns kTRUE if object inherits from TClass cl. | |
| virtual void | Inspect () const |
| Dump contents of this object in a graphics canvas. | |
| void | InvertBit (UInt_t f) |
| TClass * | IsA () const override |
| bool | IsAutoDelete () const |
| Return true if an existing object in a TBranchObject must be deleted. | |
| Bool_t | IsDestructed () const |
| IsDestructed. | |
| virtual Bool_t | IsEqual (const TObject *obj) const |
| Default equal comparison (objects are equal if they have the same address in memory). | |
| bool | IsFolder () const override |
| Return true if more than one leaf or browsables, false otherwise. | |
| Bool_t | IsOnHeap () const |
| Bool_t | IsSortable () const override |
| virtual Bool_t | IsTransparent () const |
| Bool_t | IsZombie () const |
| virtual void | KeepCircular (Long64_t maxEntries) |
| keep a maximum of fMaxEntries in memory | |
| virtual Int_t | LoadBaskets () |
| Baskets associated to this branch are forced to be in memory. | |
| void | ls (Option_t *option="") const override |
| List TNamed name and title. | |
| 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). | |
| virtual void | Modify () |
| virtual void | ModifyOn (TVirtualPad &pad) |
| virtual Bool_t | Notify () |
| This method must be overridden to handle object notification (the base implementation is no-op). | |
| void | Obsolete (const char *method, const char *asOfVers, const char *removedFromVers) const |
| Use this method to declare a method obsolete. | |
| void | operator delete (void *, size_t) |
| Operator delete for sized deallocation. | |
| void | operator delete (void *ptr) |
| Operator delete. | |
| void | operator delete (void *ptr, void *vp) |
| Only called by placement new when throwing an exception. | |
| void | operator delete[] (void *, size_t) |
| Operator delete [] for sized deallocation. | |
| void | operator delete[] (void *ptr) |
| Operator delete []. | |
| void | operator delete[] (void *ptr, void *vp) |
| Only called by placement new[] when throwing an exception. | |
| void * | operator new (size_t sz) |
| void * | operator new (size_t sz, void *vp) |
| void * | operator new[] (size_t sz) |
| void * | operator new[] (size_t sz, void *vp) |
| virtual void | Paint (Option_t *option="") |
| This method must be overridden if a class wants to paint itself. | |
| virtual void | Pop () |
| Pop on object drawn in a pad to the top of the display list. | |
| void | Print (Option_t *option="") const override |
| Print TBranch parameters. | |
| void | PrintCacheInfo () const |
| Print the information we have about which basket is currently cached and whether they have been 'used'/'read' from the cache. | |
| virtual Int_t | Read (const char *name) |
| Read contents of object with specified name from the current directory. | |
| virtual void | ReadBasket (TBuffer &b) |
| Loop on all leaves of this branch to read Basket buffer. | |
| virtual void | RecursiveRemove (TObject *obj) |
| Recursively remove this object from a list. | |
| virtual void | Refresh (TBranch *b) |
| Refresh this branch using new information in b This function is called by TTree::Refresh. | |
| virtual void | Reset (Option_t *option="") |
| Reset a Branch. | |
| virtual void | ResetAddress () |
| Reset the address of the branch. | |
| virtual void | ResetAfterMerge (TFileMergeInfo *) |
| Reset a Branch. | |
| virtual void | ResetAttFill (Option_t *option="") |
| void | ResetBit (UInt_t f) |
| virtual void | ResetReadEntry () |
| virtual void | SaveAs (const char *filename="", Option_t *option="") const |
| Save this object in the file specified by filename. | |
| virtual void | SaveFillAttributes (std::ostream &out, const char *name, Int_t coldef=1, Int_t stydef=1001) |
| virtual void | SavePrimitive (std::ostream &out, Option_t *option="") |
| Save a primitive as a C++ statement(s) on output stream "out". | |
| virtual void | SetAddress (void *add) |
| Set address of this branch. | |
| virtual void | SetAutoDelete (bool autodel=true) |
| Set the automatic delete bit. | |
| virtual void | SetBasketSize (Int_t bufsize) |
| Set the basket size The function makes sure that the basket size is greater than fEntryOffsetlen. | |
| void | SetBit (UInt_t f) |
| void | SetBit (UInt_t f, Bool_t set) |
| Set or unset the user status bits as specified in f. | |
| virtual void | SetBufferAddress (TBuffer *entryBuffer) |
| Set address of this branch directly from a TBuffer to avoid streaming. | |
| void | SetCompressionAlgorithm (Int_t algorithm=ROOT::RCompressionSetting::EAlgorithm::kUseGlobal) |
| Set compression algorithm. | |
| void | SetCompressionLevel (Int_t level=ROOT::RCompressionSetting::ELevel::kUseMin) |
| Set compression level. | |
| void | SetCompressionSettings (Int_t settings=ROOT::RCompressionSetting::EDefaults::kUseCompiledDefault) |
| Set compression settings. | |
| virtual void | SetDrawOption (Option_t *option="") |
| Set drawing option for object. | |
| virtual void | SetEntries (Long64_t entries) |
| Set the number of entries in this branch. | |
| virtual void | SetEntryOffsetLen (Int_t len, bool updateSubBranches=false) |
| 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. | |
| virtual void | SetFile (const char *filename) |
| Set file where this branch writes/reads its buffers. | |
| virtual void | SetFile (TFile *file=nullptr) |
| Set file where this branch writes/reads its buffers. | |
| virtual void | SetFillAttributes () |
| virtual void | SetFillColor (Color_t fcolor) |
| Set the fill area color. | |
| void | SetFillColor (TColorNumber) |
| virtual void | SetFillColorAlpha (Color_t fcolor, Float_t falpha) |
| virtual void | SetFillStyle (Style_t fstyle) |
| Set the fill area style. | |
| virtual void | SetFirstEntry (Long64_t entry) |
| set the first entry number (case of TBranchSTL) | |
| void | SetIOFeatures (TIOFeatures &features) |
| virtual bool | SetMakeClass (bool decomposeObj=true) |
| Set the branch in a mode where the object are decomposed (Also known as MakeClass mode). | |
| virtual void | SetName (const char *name) |
| Set the name of the TNamed. | |
| virtual void | SetNameTitle (const char *name, const char *title) |
| Set all the TNamed parameters (name and title). | |
| virtual void | SetObject (void *objadd) |
| Set object this branch is pointing to. | |
| virtual void | SetOffset (Int_t offset=0) |
| virtual void | SetStatus (bool status=true) |
| Set branch status to Process or DoNotProcess. | |
| virtual void | SetTitle (const char *title="") |
| Set the title of the TNamed. | |
| virtual void | SetTree (TTree *tree) |
| virtual void | SetUniqueID (UInt_t uid) |
| Set the unique object id. | |
| virtual void | SetupAddresses () |
| If the branch address is not set, we set all addresses starting with the top level parent branch. | |
| virtual Int_t | Sizeof () const |
| Return size of the TNamed part of the TObject. | |
| void | Streamer (TBuffer &) override |
| Stream a class object. | |
| void | StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b) |
| bool | SupportsBulkRead () const |
| Returns true if this branch supports bulk IO, false otherwise. | |
| virtual void | SysError (const char *method, const char *msgfmt,...) const |
| Issue system error message. | |
| Bool_t | TestBit (UInt_t f) const |
| Int_t | TestBits (UInt_t f) const |
| virtual void | UpdateAddress () |
| virtual void | UpdateFile () |
| Refresh the value of fDirectory (i.e. | |
| virtual void | UseCurrentStyle () |
| Set current style settings in this object This function is called when either TCanvas::UseCurrentStyle or TROOT::ForceStyle have been invoked. | |
| virtual void | Warning (const char *method, const char *msgfmt,...) const |
| Issue warning message. | |
| virtual Int_t | Write (const char *name=nullptr, Int_t option=0, Int_t bufsize=0) |
| Write this object to the current directory. | |
| virtual Int_t | Write (const char *name=nullptr, Int_t option=0, Int_t bufsize=0) const |
| Write this object to the current directory. | |
Static Public Member Functions | |
| static TClass * | Class () |
| static const char * | Class_Name () |
| static constexpr Version_t | Class_Version () |
| static const char * | DeclFileName () |
| static Longptr_t | GetDtorOnly () |
| Return destructor only flag. | |
| static Bool_t | GetObjectStat () |
| Get status of object stat flag. | |
| static void | ResetCount () |
| Static function resetting fgCount. | |
| static void | SetDtorOnly (void *obj) |
| Set destructor only flag. | |
| static void | SetObjectStat (Bool_t stat) |
| Turn on/off tracking of objects in the TObjectTable. | |
Protected Types | |
| enum | { kOnlyPrepStep = (1ULL << (3)) } |
| using | BulkObj = ROOT::Experimental::Internal::TBulkBranchRead |
| using | CacheInfo_t = ROOT::Internal::TBranchCacheInfo |
| enum | EStatusBits { kDoNotProcess = ::kDoNotProcess , kIsClone = ::kIsClone , kBranchObject = ::kBranchObject , kBranchAny = ::kBranchAny , kAutoDelete = (1ULL << (15)) , kDoNotUseBufferMap = (1ULL << (22)) } |
| TBranch status bits. More... | |
| typedef void(TBranch::* | FillLeaves_t) (TBuffer &b) |
| typedef void(TBranch::* | ReadLeaves_t) (TBuffer &b) |
Protected Member Functions | |
| virtual void | DoError (int level, const char *location, const char *fmt, va_list va) const |
| Interface to ErrorHandler (protected). | |
| void | FillLeavesImpl (TBuffer &b) |
| Loop on all leaves of this branch to fill Basket buffer. | |
| TBasket * | GetFreshBasket (Int_t basketnumber, TBuffer *user_buffer) |
| Return a fresh basket by either reusing an existing basket that needs to be drop (according to TTree::MemoryFull) or create a new one. | |
| TBasket * | GetFreshCluster (TBuffer *user_buffer) |
| Drops the cluster two behind the current cluster and returns a fresh basket by either reusing or creating a new one. | |
| TString | GetRealFileName () const |
| Get real file name. | |
| void | Init (const char *name, const char *leaflist, Int_t compress) |
| void | MakeZombie () |
| void | ReadLeaves0Impl (TBuffer &b) |
| Read zero leaves without the overhead of a loop. | |
| void | ReadLeaves1Impl (TBuffer &b) |
| Read one leaf without the overhead of a loop. | |
| void | ReadLeaves2Impl (TBuffer &b) |
| Read two leaves without the overhead of a loop. | |
| void | ReadLeavesImpl (TBuffer &b) |
| Loop on all leaves of this branch to read Basket buffer. | |
| void | SavePrimitiveNameTitle (std::ostream &out, const char *variable_name) |
| Save object name and title into the output stream "out". | |
| virtual void | SetAddressImpl (void *addr, bool, Int_t) |
| void | SetSkipZip (bool skip=true) |
| Int_t | WriteBasket (TBasket *basket, Int_t where) |
Static Protected Member Functions | |
| static void | SavePrimitiveConstructor (std::ostream &out, TClass *cl, const char *variable_name, const char *constructor_agrs="", Bool_t empty_line=kTRUE) |
| Save object constructor in the output stream "out". | |
| static void | SavePrimitiveDraw (std::ostream &out, const char *variable_name, Option_t *option=nullptr) |
| Save invocation of primitive Draw() method Skipped if option contains "nodraw" string. | |
| static TString | SavePrimitiveVector (std::ostream &out, const char *prefix, Int_t len, Double_t *arr, Int_t flag=0) |
| Save array in the output stream "out" as vector. | |
Protected Attributes | |
| char * | fAddress |
| ! Address of 1st leaf (variable or object) | |
| Int_t * | fBasketBytes |
| [fMaxBaskets] Length of baskets on file | |
| Long64_t * | fBasketEntry |
| [fMaxBaskets] Table of first entry in each basket | |
| TObjArray | fBaskets |
| -> List of baskets of this branch | |
| Long64_t * | fBasketSeek |
| [fMaxBaskets] Addresses of baskets on file | |
| Int_t | fBasketSize |
| Initial Size of Basket Buffer. | |
| TObjArray | fBranches |
| -> List of Branches of this branch | |
| TList * | fBrowsables |
| ! List of TVirtualBranchBrowsables used for Browse() | |
| BulkObj | fBulk |
| ! Helper for performing bulk IO | |
| CacheInfo_t | fCacheInfo |
| ! Hold info about which basket are in the cache and if they have been retrieved from the cache. | |
| Int_t | fCompress |
| Compression level and algorithm. | |
| TBasket * | fCurrentBasket |
| ! Pointer to the current basket. | |
| TDirectory * | fDirectory |
| ! Pointer to directory where this branch buffers are stored | |
| Long64_t | fEntries |
| Number of entries. | |
| TBuffer * | fEntryBuffer |
| ! Buffer used to directly pass the content without streaming | |
| Long64_t | fEntryNumber |
| Current entry number (last one filled in this branch). | |
| Int_t | fEntryOffsetLen |
| Initial Length of fEntryOffset table in the basket buffers. | |
| TBasket * | fExtraBasket |
| ! Allocated basket not currently holding any data. | |
| TString | fFileName |
| Name of file where buffers are stored ("" if in same file as Tree header). | |
| Color_t | fFillColor |
| Fill area color. | |
| FillLeaves_t | fFillLeaves |
| ! Pointer to the FillLeaves implementation to use. | |
| Style_t | fFillStyle |
| Fill area style. | |
| Long64_t | fFirstBasketEntry |
| ! First entry in the current basket. | |
| Long64_t | fFirstEntry |
| Number of the first entry in this branch. | |
| TIOFeatures | fIOFeatures |
| IO features for newly-created baskets. | |
| TObjArray | fLeaves |
| -> List of leaves of this branch | |
| Int_t | fMaxBaskets |
| Maximum number of Baskets so far. | |
| TBranch * | fMother |
| ! Pointer to top-level parent branch in the tree. | |
| TString | fName |
| Int_t | fNBaskets |
| ! Number of baskets in memory | |
| Long64_t | fNextBasketEntry |
| ! Next entry that will requires us to go to the next basket | |
| Int_t | fNleaves |
| ! Number of leaves | |
| Int_t | fOffset |
| Offset of this branch. | |
| TBranch * | fParent |
| ! Pointer to parent branch. | |
| Int_t | fReadBasket |
| ! Current basket number when reading | |
| Long64_t | fReadEntry |
| ! Current entry number when reading | |
| ReadLeaves_t | fReadLeaves |
| ! Pointer to the ReadLeaves implementation to use. | |
| bool | fSkipZip |
| ! After being read, the buffer will not be unzipped. | |
| Int_t | fSplitLevel |
| Branch split level. | |
| TString | fTitle |
| Long64_t | fTotBytes |
| Total number of bytes in all leaves before compression. | |
| TBuffer * | fTransientBuffer |
| ! Pointer to the current transient buffer. | |
| TTree * | fTree |
| ! Pointer to Tree header | |
| Int_t | fWriteBasket |
| Last basket number written. | |
| Long64_t | fZipBytes |
| Total number of bytes in all leaves after compression. | |
Static Protected Attributes | |
| static Int_t | fgCount = 0 |
| ! branch counter | |
Private Member Functions | |
| TBranch (const TBranch &)=delete | |
| Int_t | FillEntryBuffer (TBasket *basket, TBuffer *buf, Int_t &lnew) |
| Copy the data from fEntryBuffer into the current basket. | |
| Int_t | GetBasketAndFirst (TBasket *&basket, Long64_t &first, TBuffer *user_buffer) |
| A helper function to locate the correct basket - and its first entry. | |
| TBasket * | GetBasketImpl (Int_t basket, TBuffer *user_buffer) |
| Return pointer to basket basketnumber in this Branch. | |
| Int_t | GetBulkEntries (Long64_t, TBuffer &) |
| Read a basket of events into the given buffer with byte swapping. | |
| Int_t | GetEntriesSerialized (Long64_t N, TBuffer &user_buf) |
| Int_t | GetEntriesSerialized (Long64_t, TBuffer &, TBuffer *) |
| Read a basket of events into the given buffer without byte swapping. | |
| TBranch & | operator= (const TBranch &)=delete |
| Int_t | WriteBasketImpl (TBasket *basket, Int_t where, ROOT::Internal::TBranchIMTHelper *) |
| Write the current basket to disk and return the number of bytes written to the file. | |
Static Private Member Functions | |
| static void | AddToTObjectTable (TObject *) |
| Private helper function which will dispatch to TObjectTable::AddObj. | |
Private Attributes | |
| UInt_t | fBits |
| bit field status word | |
| UInt_t | fUniqueID |
| object unique identifier | |
Static Private Attributes | |
| static Longptr_t | fgDtorOnly = 0 |
| object for which to call dtor only (i.e. no delete) | |
| static Bool_t | fgObjectStat = kTRUE |
| if true keep track of objects in TObjectTable | |
Friends | |
| class | ROOT::Experimental::Internal::TBulkBranchRead |
| class | TBranchElement |
| class | TTree |
| class | TTreeCache |
| class | TTreeCloner |
#include <TBranch.h>
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protected |
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protected |
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protectedinherited |
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inherited |
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inherited |
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inherited |
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protected |
TBranch status bits.
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privatedelete |
| TBranch::TBranch | ( | ) |
Default constructor. Used for I/O by default.
Definition at line 86 of file TBranch.cxx.
| TBranch::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.
leaflist is the concatenation of all the variable names and types separated by a colon character : The variable name and the variable type are separated by a slash (/). The variable type must be 1 character. (Characters after the first are legal and will be appended to the visible name of the leaf, but have no effect.) If no type is given, the type of the variable is assumed to be the same as the previous variable. If the first variable does not have a type, it is assumed of type F by default. The list of currently supported types is given below:
Arrays of values are supported with the following syntax:
Note that the TTree will assume that all the item are contiguous in memory. On some platform, this is not always true of the member of a struct or a class, due to padding and alignment. Sorting your data member in order of decreasing sizeof usually leads to their being contiguous in memory.
See an example of a Branch definition in the TTree constructor.
Note that in case the data type is an object, this branch can contain only this object.
Note that this function is invoked by TTree::Branch
Definition at line 198 of file TBranch.cxx.
| TBranch::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.
See documentation for TBranch::TBranch(TTree *, const char *, void *, const char *, Int_t, Int_t)
Definition at line 251 of file TBranch.cxx.
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override |
Destructor.
Definition at line 449 of file TBranch.cxx.
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inherited |
Call this function within a function that you don't want to define as purely virtual, in order not to force all users deriving from that class to implement that maybe (on their side) unused function; but at the same time, emit a run-time warning if they try to call it, telling that it is not implemented in the derived class: action must thus be taken on the user side to override it.
In other word, this method acts as a "runtime purely virtual" warning instead of a "compiler purely virtual" error.
Definition at line 1149 of file TObject.cxx.
Add the basket to this branch.
Warning: if the basket are not 'flushed/copied' in the same order as they were created, this will induce a slow down in the insert (since we'll need to move all the record that are entere 'too early'). Warning we also assume that the current write basket is not present (aka has been removed) or is empty (no entries).
Definition at line 544 of file TBranch.cxx.
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virtual |
Add the start entry of the write basket (not yet created).
Definition at line 617 of file TBranch.cxx.
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staticprivateinherited |
Private helper function which will dispatch to TObjectTable::AddObj.
Included here to avoid circular dependency between header files.
Definition at line 195 of file TObject.cxx.
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virtualinherited |
Append graphics object to current pad.
In case no current pad is set yet, create a default canvas with the name "c1".
Definition at line 204 of file TObject.cxx.
| Int_t TBranch::BackFill | ( | ) |
Loop on all leaves of this branch to back fill Basket buffer.
Use this routine instead of TBranch::Fill when filling a branch individually to catch up with the number of entries already in the TTree.
First it calls TBranch::Fill and then if the number of entries of the branch reach one of TTree cluster's boundary, the basket is flushed.
The function returns the number of bytes committed to the memory basket. 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.
To insure that the baskets of each cluster are located close by in the file, when back-filling multiple branches make sure to call BackFill for the same entry for all the branches consecutively
rather than doing all the entries of one branch at a time.
Definition at line 679 of file TBranch.cxx.
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overridevirtual |
Browser interface.
Reimplemented from TObject.
Reimplemented in TBranchClones, TBranchElement, TBranchObject, TBranchSTL, and THbookBranch.
Definition at line 698 of file TBranch.cxx.
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inlineinherited |
Check and record whether this class has a consistent Hash/RecursiveRemove setup (*) and then return the regular Hash value for this object.
The intent is for this routine to be called instead of directly calling the function Hash during "insert" operations. See TObject::HasInconsistenTObjectHash();
(*) The setup is consistent when all classes in the class hierarchy that overload TObject::Hash do call ROOT::CallRecursiveRemoveIfNeeded in their destructor. i.e. it is safe to call the Hash virtual function during the RecursiveRemove operation.
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static |
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static |
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inlinestaticconstexpr |
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virtualinherited |
Returns name of class to which the object belongs.
Definition at line 227 of file TObject.cxx.
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overridevirtualinherited |
Set name and title to empty strings ("").
Reimplemented from TObject.
Reimplemented in TPrincipal, TProcessID, TStreamerInfo, TTask, TVirtualFitter, and TVirtualStreamerInfo.
Definition at line 63 of file TNamed.cxx.
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overridevirtualinherited |
Make a clone of an object using the Streamer facility.
If newname is specified, this will be the name of the new object.
Reimplemented from TObject.
Reimplemented in TStreamerInfo, and TTreeIndex.
Definition at line 73 of file TNamed.cxx.
Compare two TNamed objects.
Returns 0 when equal, -1 when this is smaller and +1 when bigger (like strcmp).
Reimplemented from TObject.
Reimplemented in TStructNodeProperty.
Definition at line 84 of file TNamed.cxx.
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inherited |
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overridevirtualinherited |
Copy this to obj.
Reimplemented from TObject.
Reimplemented in TPieSlice, TProfile2D, TProfile3D, TProfile, TStyle, TSystemDirectory, TSystemFile, TText, and TXTRU.
Definition at line 93 of file TNamed.cxx.
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inlinestatic |
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virtualinherited |
Delete this object.
Typically called as a command via the interpreter. Normally use "delete" operator when object has been allocated on the heap.
Reimplemented in RooLinkedList, TAxis, TBtree, TCanvas, TClonesArray, TCollection, TDirectory, TDirectoryFile, TExMap, TFile, TGFrame, TGItemContext, TGTextEdit, THashList, THashTable, TKey, TKeySQL, TKeyXML, TList, TListOfDataMembers, TListOfEnums, TListOfEnumsWithLock, TListOfFunctions, TListOfFunctionTemplates, TMap, TMVA::Results, TObjArray, TObjectTable, TOrdCollection, TProtoClass, TQCommand, TRefArray, TSystemDirectory, TSystemFile, TThread, TTree, TTreeViewer, TViewPubDataMembers, and TViewPubFunctions.
Definition at line 268 of file TObject.cxx.
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virtual |
Loop on all branch baskets.
If the file where branch buffers reside is writable, free the disk space associated to the baskets of the branch, then call Reset(). If the option contains "all", delete also the baskets for the subbranches. The branch is reset.
NOTE that this function must be used with extreme care. Deleting branch baskets fragments the file and may introduce inefficiencies when adding new entries in the Tree or later on when reading the Tree.
Definition at line 725 of file TBranch.cxx.
Computes distance from point (px,py) to the object.
This member function must be implemented for each graphics primitive. This default function returns a big number (999999).
Reimplemented in TASImage, TAxis3D, TAxis, TBox, TBRIK, TColorWheel, TCrown, TCurlyArc, TCurlyLine, TDiamond, TEfficiency, TEllipse, TF1, TF2, TF3, TFileDrawMap, TGenerator, TGeoBBox, TGeoCompositeShape, TGeoCone, TGeoConeSeg, TGeoEltu, TGeoHalfSpace, TGeoHype, TGeoNode, TGeoOverlap, TGeoParaboloid, TGeoPcon, TGeoPgon, TGeoScaledShape, TGeoShape, TGeoShapeAssembly, TGeoSphere, TGeoTessellated, TGeoTorus, TGeoTrack, TGeoTube, TGeoTubeSeg, TGeoVGShape, TGeoVolume, TGeoXtru, TGL5DDataSet, TGLHistPainter, TGLParametricEquation, TGLScenePad, TGLTH3Composition, TGLViewer, TGraph2D, TGraph, TGraphEdge, TGraphNode, TGraphPolargram, TH1, THistPainter, THStack, TLine, TMarker3DBox, TMarker, TMultiGraph, TNode, TPad, TPaletteAxis, TParallelCoord, TParallelCoordRange, TParallelCoordVar, TParticle, TPave, TPCON, TPie, TPieSlice, TPoints3DABC, TPolyLine3D, TPolyLine, TPolyMarker3D, TPolyMarker, TPrimary, TScatter2D, TScatter, TSPHE, TSpider, TSpline, TStyle, TText, TTreePerfStats, TTUBE, TTUBS, TVirtualHistPainter, and TXTRU.
Definition at line 284 of file TObject.cxx.
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protectedvirtualinherited |
Interface to ErrorHandler (protected).
Reimplemented in TThread, and TTreeViewer.
Definition at line 1059 of file TObject.cxx.
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virtualinherited |
Default Draw method for all objects.
Reimplemented in RooAbsData, RooPlot, RooStats::HypoTestInverterPlot, RooStats::SamplingDistPlot, ROOT::Experimental::XRooFit::xRooNLLVar::xRooHypoPoint, ROOT::Experimental::XRooFit::xRooNLLVar::xRooHypoSpace, ROOT::Experimental::XRooFit::xRooNode, ROOT::RGeoPainter, TArrow, TASImage, TBox, TBrowser, TButton, TCanvas, TChain, TClass, TClassTree, TCollection, TColorWheel, TDiamond, TDirectory, TEfficiency, TEllipse, TEveGeoNode, TEveGeoTopNode, TF1, TF2, TF3, TFile, TFITSHDU, TFrame, TGenerator, TGeoBatemanSol, TGeometry, TGeoNode, TGeoOverlap, TGeoPainter, TGeoParallelWorld, TGeoPhysicalNode, TGeoPolygon, TGeoShape, TGeoTrack, TGeoVGShape, TGeoVolume, TGItemContext, TGListTree, TGPicture, TGraph2D, TGraph, TGraphPolar, TGraphPolargram, TGraphStruct, TGraphTime, TH1, THelix, THStack, TLegend, TMarker, TMatrixTBase< Element >, TMatrixTBase< Double_t >, TMatrixTBase< Float_t >, TMultiDimFit, TMultiGraph, TMultiLayerPerceptron, TNode, TNodeDiv, TPad, TParallelCoord, TParallelCoordRange, TParallelCoordVar, TPave, TPaveLabel, TPavesText, TPaveText, TPie, TPolyLine3D, TPolyLine, TPolyMarker3D, TPolyMarker, TRatioPlot, TSpider, TSpline, TStructViewer, TStructViewerGUI, TTree, TTreePerfStats, TVectorT< Element >, TVectorT< Double_t >, TVectorT< Float_t >, TVirtualPad, and TWbox.
Definition at line 293 of file TObject.cxx.
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virtualinherited |
Draw class inheritance tree of the class to which this object belongs.
If a class B inherits from a class A, description of B is drawn on the right side of description of A. Member functions overridden by B are shown in class A with a blue line crossing-out the corresponding member function. The following picture is the class inheritance tree of class TPaveLabel:
Reimplemented in TGFrame, TSystemDirectory, and TSystemFile.
Definition at line 308 of file TObject.cxx.
Draw a clone of this object in the current selected pad with: gROOT->SetSelectedPad(c1).
If pad was not selected - gPad will be used.
Reimplemented in TAxis, TCanvas, TGFrame, TSystemDirectory, and TSystemFile.
Definition at line 319 of file TObject.cxx.
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virtual |
Loop on all branch baskets.
Drop all baskets from memory except readbasket. If the option contains "all", drop all baskets including read- and write-baskets (unless they are not stored individually on disk). The option "all" also lead to DropBaskets being called on the sub-branches.
Definition at line 756 of file TBranch.cxx.
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virtualinherited |
Dump contents of object on stdout.
Using the information in the object dictionary (class TClass) each data member is interpreted. If a data member is a pointer, the pointer value is printed
The following output is the Dump of a TArrow object:
Reimplemented in TClass, TCollection, TGFrame, TGPack, and TSystemFile.
Definition at line 367 of file TObject.cxx.
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virtualinherited |
Issue error message.
Use "location" to specify the method where the error occurred. Accepts standard printf formatting arguments.
Reimplemented in TFitResult.
Definition at line 1098 of file TObject.cxx.
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virtualinherited |
Execute method on this object with the given parameter string, e.g.
"3.14,1,\"text\"".
Reimplemented in ROOT::R::TRInterface, TCling, TContextMenu, TInterpreter, and TMethodCall.
Definition at line 378 of file TObject.cxx.
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virtualinherited |
Execute method on this object with parameters stored in the TObjArray.
The TObjArray should contain an argv vector like:
Reimplemented in ROOT::R::TRInterface, TCling, TContextMenu, TInterpreter, and TMethodCall.
Definition at line 398 of file TObject.cxx.
Execute action corresponding to an event at (px,py).
This method must be overridden if an object can react to graphics events.
Reimplemented in TASImage, TASPaletteEditor::LimitLine, TAxis3D, TAxis, TBox, TButton, TCanvas, TCrown, TCurlyArc, TCurlyLine, TDiamond, TEfficiency, TEllipse, TF1, TF2, TF3, TFrame, TGenerator, TGeoManager, TGeoNode, TGeoOverlap, TGeoShape, TGeoTrack, TGeoVolume, TGL5DDataSet, TGLEventHandler, TGLHistPainter, TGLParametricEquation, TGLScenePad, TGLTH3Composition, TGLViewer, TGraph2D, TGraph, TGraphEdge, TGraphNode, TGraphPolargram, TGroupButton, TH1, THistPainter, TLine, TLink, TMarker3DBox, TMarker, TNode, TPad, TPaletteAxis, TParallelCoord, TParallelCoordRange, TParallelCoordVar, TParticle, TPave, TPie, TPolyLine3D, TPolyLine, TPolyMarker3D, TPolyMarker, TPrimary, TScatter2D, TScatter, TSliderBox, TSpider, TSpline, TText, TTreePerfStats, TView3D, TView, TVirtualHistPainter, and TWbox.
Definition at line 415 of file TObject.cxx.
| void TBranch::ExpandBasketArrays | ( | ) |
Increase BasketEntry buffer of a minimum of 10 locations and a maximum of 50 per cent of current size.
Definition at line 824 of file TBranch.cxx.
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virtualinherited |
Issue fatal error message.
Use "location" to specify the method where the fatal error occurred. Accepts standard printf formatting arguments.
Definition at line 1126 of file TObject.cxx.
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virtualinherited |
Encode TNamed into output buffer.
Reimplemented in TDirectoryFile, TFile, TKey, TKeySQL, TKeyXML, TSQLFile, and TXMLFile.
Definition at line 103 of file TNamed.cxx.
Copy the data from fEntryBuffer into the current basket.
Definition at line 934 of file TBranch.cxx.
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virtual |
Loop on all leaves of this branch to fill Basket buffer.
If TBranchIMTHelper is non-null and it is time to WriteBasket, then we will use TBB to compress in parallel.
The function returns the number of bytes committed to the memory basket. 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.
Reimplemented in TBranchClones, TBranchElement, TBranchObject, TBranchRef, and TBranchSTL.
Definition at line 855 of file TBranch.cxx.
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protected |
Loop on all leaves of this branch to fill Basket buffer.
Definition at line 2495 of file TBranch.cxx.
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virtual |
Find the immediate sub-branch with passed name.
Reimplemented in TBranchElement.
Definition at line 1034 of file TBranch.cxx.
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virtual |
Find the leaf corresponding to the name 'searchname'.
Reimplemented in TBranchElement.
Definition at line 1080 of file TBranch.cxx.
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virtualinherited |
Must be redefined in derived classes.
This function is typically used with TCollections, but can also be used to find an object by name inside this object.
Reimplemented in RooAbsCollection, RooLinkedList, TBtree, TCollection, TDirectory, TFolder, TGeometry, TGraph2D, TGraph, TH1, THashList, THashTable, THbookFile, TList, TListOfDataMembers, TListOfEnums, TListOfEnumsWithLock, TListOfFunctions, TListOfFunctionTemplates, TListOfTypes, TMap, TObjArray, TPad, TROOT, TViewPubDataMembers, and TViewPubFunctions.
Definition at line 425 of file TObject.cxx.
Must be redefined in derived classes.
This function is typically used with TCollections, but can also be used to find an object inside this object.
Reimplemented in RooAbsCollection, RooLinkedList, TBtree, TCollection, TDirectory, TFolder, TGeometry, TGraph2D, TGraph, TH1, THashList, THashTable, THbookFile, TList, TListOfDataMembers, TListOfEnums, TListOfEnumsWithLock, TListOfFunctions, TListOfFunctionTemplates, TListOfTypes, TMap, TObjArray, TPad, TROOT, TViewPubDataMembers, and TViewPubFunctions.
Definition at line 435 of file TObject.cxx.
| Int_t TBranch::FlushBaskets | ( | ) |
Flush to disk all the baskets of this branch and any of subbranches.
Return the number of bytes written or -1 in case of write error.
Definition at line 1135 of file TBranch.cxx.
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.
Return the number of bytes written;
Definition at line 1181 of file TBranch.cxx.
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inlinevirtual |
Reimplemented in TBranchElement.
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private |
A helper function to locate the correct basket - and its first entry.
Extracted to a common private function because it is needed by both GetEntry and GetBulkEntries. It should not be called directly.
If a new basket must be constructed and the user_buffer is provided, then the user_buffer will back the memory of the newly-constructed basket.
Assumes that this branch is enabled.
Returns -1 if the entry does not exist Returns -2 in case of error Returns the index of the basket in case of success.
Definition at line 1352 of file TBranch.cxx.
Return pointer to basket basketnumber in this Branch.
If a new buffer must be created and the user_buffer argument is non-null, then the memory in the user_buffer will be shared with the returned TBasket.
Definition at line 1225 of file TBranch.cxx.
Return address of basket in the file.
Definition at line 1301 of file TBranch.cxx.
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inlinevirtual |
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virtual |
Returns (and, if 0, creates) browsable objects for this branch See TVirtualBranchBrowsable::FillListOfBrowsables.
Definition at line 1311 of file TBranch.cxx.
Read a basket of events into the given buffer with byte swapping.
On success, the caller should be able to access the contents of buf as they are with:
where T is the type stored on this branch.
When count_buf points to a valid TBuffer and the branch has a branch count, count_buf will be filled (via a call to GetEntriesSerialized) with the data from the branchCount. After deserialization those value can be used to calculate the number of elements corresponding to each entries.
For each entry the number of elements is the multiplication of
and the value in the BranchCount corresponding to that entry (can be obtained from branch->GetBranchCount()).
Definition at line 1471 of file TBranch.cxx.
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inline |
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virtual |
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 in TBranchClones, TBranchElement, TBranchObject, and TBranchSTL.
Definition at line 1323 of file TBranch.cxx.
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inline |
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virtualinherited |
Get option used by the graphics system to draw this object.
Note that before calling object.GetDrawOption(), you must have called object.Draw(..) before in the current pad.
Reimplemented in TBrowser, TFitEditor, TGedFrame, TGFileBrowser, TRootBrowser, and TRootBrowserLite.
Definition at line 445 of file TObject.cxx.
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staticinherited |
Return destructor only flag.
Definition at line 1196 of file TObject.cxx.
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private |
Read a basket of events into the given buffer without byte swapping.
On success, the caller still need to deserialize the content. For example for a scalar branch and N the return value (i.e. number of entries)
where target is a pointer or array to the type stored on this branch.
When count_buf points to a valid TBuffer and the branch has a branch count, count_buf will be filled (via a call to GetEntriesSerialized()) with the data from the branchCount. After deserialization those value can be used to calculate the number of elements corresponding to each entries.
For each entry the number of elements is the multiplication of
and the value in the BranchCount corresponding to that entry (can be obtained from branch->GetBranchCount()).
Definition at line 1585 of file TBranch.cxx.
Read all leaves of entry and return total number of bytes read.
The input argument "entry" is the entry number in the current tree. In case of a TChain, the entry number in the current Tree must be found before calling this function. For example:
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.
See IMPORTANT REMARKS in TTree::GetEntry.
Reimplemented in TBranchClones, TBranchElement, TBranchObject, TBranchSTL, and THbookBranch.
Definition at line 1705 of file TBranch.cxx.
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virtual |
Read all leaves of an entry and export buffers to real objects in a TClonesArray list.
Returns total number of bytes read.
Definition at line 1761 of file TBranch.cxx.
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 in TBranchElement, TBranchObject, and TBranchSTL.
Definition at line 1833 of file TBranch.cxx.
Return pointer to the file where branch buffers reside, returns 0 in case branch buffers reside in the same file as tree header.
If mode is 1 the branch buffer file is recreated.
Definition at line 1852 of file TBranch.cxx.
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inlinevirtualinherited |
Return the fill area color.
Reimplemented in TGraphMultiErrors, TGWin32, TGWin32VirtualXProxy, and TGX11.
Definition at line 32 of file TAttFill.h.
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inlinevirtualinherited |
Return the fill area style.
Reimplemented in TGraphMultiErrors, TGWin32, TGWin32VirtualXProxy, and TGX11.
Definition at line 33 of file TAttFill.h.
Return a fresh basket by either reusing an existing basket that needs to be drop (according to TTree::MemoryFull) or create a new one.
If the user_buffer argument is non-null, then the memory in the user-provided buffer will be utilized by the underlying basket.
The basket number is used to estimate the required buffer size and try to optimize memory usage and number of memory allocation.
Definition at line 1893 of file TBranch.cxx.
Drops the cluster two behind the current cluster and returns a fresh basket by either reusing or creating a new one.
Definition at line 1952 of file TBranch.cxx.
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virtual |
Return the 'full' name of the branch.
In particular prefix the mother's name when it does not end in a trailing dot and thus is not part of the branch name
Reimplemented in TBranchElement.
Definition at line 2030 of file TBranch.cxx.
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overridevirtual |
Return icon name depending on type of branch.
Reimplemented from TObject.
Reimplemented in TBranchElement.
Definition at line 1331 of file TBranch.cxx.
| ROOT::TIOFeatures TBranch::GetIOFeatures | ( | ) | const |
Returns the IO settings currently in use for this branch.
Definition at line 2254 of file TBranch.cxx.
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virtual |
Return pointer to the 1st Leaf named name in thisBranch.
Definition at line 2054 of file TBranch.cxx.
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virtual |
Return whether this branch is in a mode where the object are decomposed or not (Also known as MakeClass mode).
Reimplemented in TBranchElement.
Definition at line 2116 of file TBranch.cxx.
| TBranch * TBranch::GetMother | ( | ) | const |
Get our top-level parent branch in the tree.
Definition at line 2126 of file TBranch.cxx.
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inlineoverridevirtualinherited |
Returns string containing info about the object at position (px,py).
This method is typically overridden by classes of which the objects can report peculiarities for different positions. Returned string will be re-used (lock in MT environment).
Reimplemented in TASImage, TAxis3D, TColorWheel, TF1, TF2, TFileDrawMap, TGeoNode, TGeoTrack, TGeoVolume, TGL5DDataSet, TGLHistPainter, TGLParametricEquation, TGLTH3Composition, TGraph, TH1, THistPainter, TNode, TPaletteAxis, TParallelCoordVar, and TVirtualHistPainter.
Definition at line 491 of file TObject.cxx.
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staticinherited |
Get status of object stat flag.
Definition at line 1181 of file TObject.cxx.
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inlinevirtualinherited |
Reimplemented in TArrow, TAxis3D, TFile, TGaxis, TGeoVolume, TH1, THelix, TLegendEntry, TMapFile, TNode, TPave, TPoints3DABC, TPolyLine3D, TPolyLine, TPolyMarker3D, TPolyMarker, TPSocket, TSelector, TSocket, and TUDPSocket.
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protected |
Get real file name.
Definition at line 2067 of file TBranch.cxx.
Return all elements of one row unpacked in internal array fValues [Actually just returns 1 (?)].
Definition at line 2107 of file TBranch.cxx.
Find the parent branch of child.
Return 0 if child is not in this branch hierarchy.
Definition at line 2163 of file TBranch.cxx.
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inlineoverridevirtualinherited |
Return total number of bytes in the branch (including current buffer).
Definition at line 2200 of file TBranch.cxx.
Return total number of bytes in the branch (excluding current buffer) if option ="*" includes all sub-branches of this branch too.
Definition at line 2219 of file TBranch.cxx.
Returns the transient buffer currently used by this TBranch for reading/writing baskets.
Definition at line 522 of file TBranch.cxx.
|
virtualinherited |
Return the unique object id.
Definition at line 480 of file TObject.cxx.
Return total number of zip bytes in the branch if option ="*" includes all sub-branches of this branch too.
Definition at line 2237 of file TBranch.cxx.
Execute action in response of a timer timing out.
This method must be overridden if an object has to react to timers.
Reimplemented in TGCommandPlugin, TGDNDManager, TGFileContainer, TGHtml, TGLEventHandler, TGPopupMenu, TGraphTime, TGScrollBar, TGShutter, TGTextEdit, TGTextEditor, TGTextEntry, TGTextView, TGToolTip, TGuiBldDragManager, TGWindow, and TTreeViewer.
Definition at line 516 of file TObject.cxx.
|
inlineoverridevirtualinherited |
Return hash value for this object.
Note: If this routine is overloaded in a derived class, this derived class should also add
Otherwise, when RecursiveRemove is called (by ~TObject or example) for this type of object, the transversal of THashList and THashTable containers will will have to be done without call Hash (and hence be linear rather than logarithmic complexity). You will also see warnings like
Reimplemented from TObject.
|
inlineinherited |
Return true is the type of this object is known to have an inconsistent setup for Hash and RecursiveRemove (i.e.
missing call to RecursiveRemove in destructor).
Note: Since the consistency is only tested for during inserts, this routine will return true for object that have never been inserted whether or not they have a consistent setup. This has no negative side-effect as searching for the object with the right or wrong Hash will always yield a not-found answer (Since anyway no hash can be guaranteed unique, there is always a check)
|
virtualinherited |
Issue info message.
Use "location" to specify the method where the warning occurred. Accepts standard printf formatting arguments.
Definition at line 1072 of file TObject.cxx.
|
virtualinherited |
Returns kTRUE if object inherits from class "classname".
Reimplemented in TClass.
Definition at line 549 of file TObject.cxx.
Returns kTRUE if object inherits from TClass cl.
Reimplemented in TClass.
Definition at line 557 of file TObject.cxx.
|
protected |
Definition at line 299 of file TBranch.cxx.
|
virtualinherited |
Dump contents of this object in a graphics canvas.
Same action as Dump but in a graphical form. In addition pointers to other objects can be followed.
The following picture is the Inspect of a histogram object:
Reimplemented in ROOT::Experimental::XRooFit::xRooNode, TGFrame, TInspectorObject, and TSystemFile.
Definition at line 570 of file TObject.cxx.
|
inlineoverridevirtual |
Reimplemented from TObject.
Reimplemented in TBranchClones, TBranchElement, TBranchObject, TBranchRef, TBranchSTL, and THbookBranch.
| bool TBranch::IsAutoDelete | ( | ) | const |
Return true if an existing object in a TBranchObject must be deleted.
Definition at line 2262 of file TBranch.cxx.
|
inlineinherited |
IsDestructed.
Default equal comparison (objects are equal if they have the same address in memory).
More complicated classes might want to override this function.
Reimplemented in TGObject, TObjString, TPair, and TQCommand.
Definition at line 589 of file TObject.cxx.
|
overridevirtual |
Return true if more than one leaf or browsables, false otherwise.
Reimplemented from TObject.
Reimplemented in TBranchClones, TBranchElement, TBranchObject, and TBranchSTL.
Definition at line 2270 of file TBranch.cxx.
|
inlineoverridevirtualinherited |
Reimplemented from TObject.
Reimplemented in TStructNodeProperty.
|
inlinevirtualinherited |
Reimplemented in TGWin32VirtualXProxy.
Definition at line 49 of file TAttFill.h.
|
virtual |
keep a maximum of fMaxEntries in memory
Definition at line 2282 of file TBranch.cxx.
|
virtual |
Baskets associated to this branch are forced to be in memory.
You can call TTree::SetMaxVirtualSize(maxmemory) to instruct the system that the total size of the imported baskets does not exceed maxmemory bytes.
The function returns the number of baskets that have been put in memory. This method may be called to force all baskets of one or more branches in memory when random access to entries in this branch is required. See also TTree::LoadBaskets to load all baskets of all branches in memory.
Definition at line 2308 of file TBranch.cxx.
|
overridevirtualinherited |
List TNamed name and title.
Reimplemented from TObject.
Reimplemented in ROOT::Experimental::XRooFit::xRooBrowser, TNode, TROOT, TStreamerBase, TStreamerElement, TStreamerInfo, TStreamerSTL, TTask, TText, and TVirtualStreamerInfo.
Definition at line 112 of file TNamed.cxx.
|
inherited |
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).
Definition at line 1160 of file TObject.cxx.
|
virtualinherited |
|
virtualinherited |
|
virtualinherited |
This method must be overridden to handle object notification (the base implementation is no-op).
Different objects in ROOT use the Notify method for different purposes, in coordination with other objects that call this method at the appropriate time.
For example, TLeaf uses it to load class information; TBranchRef to load contents of referenced branches TBranchRef; most notably, based on Notify, TChain implements a callback mechanism to inform interested parties when it switches to a new sub-tree.
Reimplemented in h1analysis, h1analysisTreeReader, TARInterruptHandler, TASInputHandler, TASInterruptHandler, TASLogHandler, TASSigPipeHandler, TBlinkTimer, TBranchElement, TBranchRef, TBreakLineCom, TBrowserTimer, TCollection, TDelCharCom, TDelTextCom, TFileHandler, TGContainerKeyboardTimer, TGContainerScrollTimer, TGInputHandler, TGLRedrawTimer, TGTextEditHist, TGuiBldDragManagerRepeatTimer, TIdleTimer, TInsCharCom, TInsTextCom, TInterruptHandler, TLeafObject, TMessageHandler, TNotifyLink< Type >, TNotifyLink< RNoCleanupNotifierHelper >, TNotifyLink< ROOT::Detail::TBranchProxy >, TNotifyLink< TTreeReader >, TPopupDelayTimer, TProcessEventTimer, TRefTable, TRepeatTimer, TSBRepeatTimer, TSelector, TSelectorDraw, TSelectorEntries, TSignalHandler, TSingleShotCleaner, TSocketHandler, TStdExceptionHandler, TSysEvtHandler, TTermInputHandler, TThreadTimer, TTimeOutTimer, TTimer, TTipDelayTimer, TTree, TTreeFormula, TTreeFormulaManager, TTreeReader, TViewTimer, and TViewUpdateTimer.
Definition at line 618 of file TObject.cxx.
|
inherited |
Use this method to declare a method obsolete.
Specify as of which version the method is obsolete and as from which version it will be removed.
Definition at line 1169 of file TObject.cxx.
|
inherited |
Operator delete for sized deallocation.
Definition at line 1234 of file TObject.cxx.
|
inherited |
Operator delete.
Definition at line 1212 of file TObject.cxx.
|
inherited |
Only called by placement new when throwing an exception.
Definition at line 1266 of file TObject.cxx.
|
inherited |
Operator delete [] for sized deallocation.
Definition at line 1245 of file TObject.cxx.
|
inherited |
Operator delete [].
Definition at line 1223 of file TObject.cxx.
|
inherited |
Only called by placement new[] when throwing an exception.
Definition at line 1274 of file TObject.cxx.
|
inlineinherited |
|
inlineinherited |
|
inlineinherited |
|
virtualinherited |
This method must be overridden if a class wants to paint itself.
The difference between Paint() and Draw() is that when a object draws itself it is added to the display list of the pad in which it is drawn (and automatically redrawn whenever the pad is redrawn). While paint just draws the object without adding it to the pad display list.
Reimplemented in ROOT::Experimental::RTreeMapPainter, ROOT::RGeoPainter, TAnnotation, TArrow, TASImage, TASPaletteEditor::LimitLine, TASPaletteEditor::PaintPalette, TAxis3D, TBits, TBox, TButton, TCanvas, TClassTree, TCollection, TColorWheel, TCrown, TDiamond, TDirectory, TEfficiency, TEllipse, TEveArrow, TEveCaloViz, TEveDigitSet, TEveGeoShape, TEveGeoTopNode, TEvePlot3D, TEvePointSet, TEveProjectionAxes, TEveScene, TEveShape, TEveStraightLineSet, TEveText, TEveTriangleSet, TExec, TF1, TF2, TF3, TFile, TFileDrawMap, TFrame, TGaxis, TGenerator, TGeoBoolNode, TGeoIntersection, TGeoNode, TGeoOverlap, TGeoPainter, TGeoPhysicalNode, TGeoShape, TGeoSubtraction, TGeoTrack, TGeoUnion, TGeoVGShape, TGeoVolume, TGL5DDataSet, TGLHistPainter, TGLParametricEquation, TGLTH3Composition, TGraph2D, TGraph2DPainter, TGraph, TGraphEdge, TGraphNode, TGraphPolargram, TGraphTime, TH1, THistPainter, THStack, TLatex, TLegend, TLine, TMacro, TMarker3DBox, TMarker, TMathText, TMultiGraph, TNode, TNodeDiv, TPad, TPaletteAxis, TParallelCoord, TParallelCoordRange, TParallelCoordVar, TParticle, TPave, TPaveLabel, TPaveStats, TPavesText, TPaveText, TPie, TPolyLine3D, TPolyLine, TPolyMarker3D, TPolyMarker, TPrimary, TRatioPlot, TScatter2D, TScatter, TShape, TSpectrum2Painter, TSpider, TSpline, TSQLFile, TStyle, TText, TTreePerfStats, TVirtualGeoPainter, TVirtualGeoTrack, TVirtualHistPainter, TVirtualPad, TWbox, and TXMLFile.
Definition at line 631 of file TObject.cxx.
|
virtualinherited |
Pop on object drawn in a pad to the top of the display list.
I.e. it will be drawn last and on top of all other primitives.
Reimplemented in TFrame, TPad, and TVirtualPad.
Definition at line 640 of file TObject.cxx.
|
overridevirtual |
Print TBranch parameters.
If options contains "basketsInfo" print the entry number, location and size of each baskets.
Reimplemented from TObject.
Reimplemented in TBranchClones, TBranchElement, TBranchObject, TBranchRef, and TBranchSTL.
Definition at line 2340 of file TBranch.cxx.
| void TBranch::PrintCacheInfo | ( | ) | const |
Print the information we have about which basket is currently cached and whether they have been 'used'/'read' from the cache.
Definition at line 2444 of file TBranch.cxx.
|
virtualinherited |
Read contents of object with specified name from the current directory.
First the key with the given name is searched in the current directory, next the key buffer is deserialized into the object. The object must have been created before via the default constructor. See TObject::Write().
Reimplemented in TBuffer, TKey, TKeySQL, and TKeyXML.
Definition at line 673 of file TObject.cxx.
|
virtual |
Loop on all leaves of this branch to read Basket buffer.
Definition at line 2452 of file TBranch.cxx.
|
protected |
Read zero leaves without the overhead of a loop.
Definition at line 2471 of file TBranch.cxx.
|
protected |
Read one leaf without the overhead of a loop.
Definition at line 2478 of file TBranch.cxx.
|
protected |
Read two leaves without the overhead of a loop.
Definition at line 2486 of file TBranch.cxx.
|
protected |
Loop on all leaves of this branch to read Basket buffer.
Definition at line 2460 of file TBranch.cxx.
|
virtualinherited |
Recursively remove this object from a list.
Typically implemented by classes that can contain multiple references to a same object.
Reimplemented in RooAbsCollection, RooAbsData, RooLinkedList, RooMCStudy, ROOT::Internal::TCheckHashRecursiveRemoveConsistency, ROOT::RBrowserDataCleanup, RooWorkspace, TBrowser, TChain, TCling, TCollection, TDialogCanvas, TDirectory, TEfficiency, TFileMerger, TFitEditor, TFolder, TFriendElement, TGedEditor, TGeometry, TGFileBrowser, TGraph2D, TGraph, TH1, TH1Editor, TH2Editor, THashList, THistPainter, THStack, TInspectCanvas, TLegend, TList, TListOfDataMembers, TListOfEnums, TListOfEnumsWithLock, TListOfFunctions, TListOfFunctionTemplates, TMultiGraph, TNode, TObjArray, TObjectRefSpy, TObjectSpy, TPad, TProcessID, TROOT, TRootBrowser, TRootBrowserHistory, TRootBrowserLite, TRootContextMenu, TTree, TTreePlayer, TViewPubDataMembers, TViewPubFunctions, and TVirtualPad.
Definition at line 684 of file TObject.cxx.
|
virtual |
Refresh this branch using new information in b This function is called by TTree::Refresh.
Definition at line 2507 of file TBranch.cxx.
|
virtual |
Reset a Branch.
Reimplemented in TBranchClones, TBranchElement, TBranchObject, and TBranchRef.
Definition at line 2556 of file TBranch.cxx.
|
virtual |
Reset the address of the branch.
Reimplemented in TBranchElement.
Definition at line 2650 of file TBranch.cxx.
|
virtual |
Reset a Branch.
Reimplemented in TBranchClones, TBranchElement, TBranchObject, and TBranchRef.
Definition at line 2597 of file TBranch.cxx.
|
virtualinherited |
Reimplemented in TGWin32VirtualXProxy.
|
static |
Static function resetting fgCount.
Definition at line 2673 of file TBranch.cxx.
|
virtualinherited |
Save this object in the file specified by filename.
otherwise the object is written to filename as a CINT/C++ script. The C++ code to rebuild this object is generated via SavePrimitive(). The "option" parameter is passed to SavePrimitive. By default it is an empty string. It can be used to specify the Draw option in the code generated by SavePrimitive.
The function is available via the object context menu.
Reimplemented in ROOT::Experimental::XRooFit::xRooNode, TClassTree, TFolder, TGeoVolume, TGObject, TGraph, TH1, TPad, TPaveClass, TSpline3, TSpline5, TSpline, TTreePerfStats, and TVirtualPad.
Definition at line 708 of file TObject.cxx.
|
virtualinherited |
|
virtualinherited |
Save a primitive as a C++ statement(s) on output stream "out".
Reimplemented in TAnnotation, TArc, TArrow, TASImage, TAxis3D, TBox, TButton, TCanvas, TChain, TCrown, TCurlyArc, TCurlyLine, TCutG, TDiamond, TEfficiency, TEllipse, TExec, TF12, TF1, TF2, TF3, TFrame, TGaxis, TGButton, TGButtonGroup, TGCanvas, TGCheckButton, TGColorSelect, TGColumnLayout, TGComboBox, TGCompositeFrame, TGContainer, TGDockableFrame, TGDoubleHSlider, TGDoubleVSlider, TGedMarkerSelect, TGedPatternSelect, TGeoArb8, TGeoBBox, TGeoBoolNode, TGeoCombiTrans, TGeoCompositeShape, TGeoCone, TGeoConeSeg, TGeoCtub, TGeoDecayChannel, TGeoElementRN, TGeoEltu, TGeoGtra, TGeoHalfSpace, TGeoHMatrix, TGeoHype, TGeoIdentity, TGeoIntersection, TGeoMaterial, TGeoMedium, TGeoMixture, TGeoPara, TGeoParaboloid, TGeoPatternCylPhi, TGeoPatternCylR, TGeoPatternParaX, TGeoPatternParaY, TGeoPatternParaZ, TGeoPatternSphPhi, TGeoPatternSphR, TGeoPatternSphTheta, TGeoPatternTrapZ, TGeoPatternX, TGeoPatternY, TGeoPatternZ, TGeoPcon, TGeoPgon, TGeoRotation, TGeoScaledShape, TGeoShapeAssembly, TGeoSphere, TGeoSubtraction, TGeoTessellated, TGeoTorus, TGeoTranslation, TGeoTrap, TGeoTrd1, TGeoTrd2, TGeoTube, TGeoTubeSeg, TGeoUnion, TGeoVolume, TGeoXtru, TGFileContainer, TGFont, TGFrame, TGFSComboBox, TGGC, TGGroupFrame, TGHButtonGroup, TGHorizontal3DLine, TGHorizontalFrame, TGHorizontalLayout, TGHProgressBar, TGHScrollBar, TGHSlider, TGHSplitter, TGHtml, TGIcon, TGLabel, TGLayoutHints, TGLineStyleComboBox, TGLineWidthComboBox, TGListBox, TGListDetailsLayout, TGListLayout, TGListTree, TGListView, TGLVContainer, TGMainFrame, TGMatrixLayout, TGMdiFrame, TGMdiMainFrame, TGMdiMenuBar, TGMenuBar, TGMenuTitle, TGNumberEntry, TGNumberEntryField, TGPictureButton, TGPopupMenu, TGProgressBar, TGRadioButton, TGraph2D, TGraph2DAsymmErrors, TGraph2DErrors, TGraph, TGraphAsymmErrors, TGraphBentErrors, TGraphEdge, TGraphErrors, TGraphMultiErrors, TGraphNode, TGraphPolar, TGraphPolargram, TGraphStruct, TGroupButton, TGRowLayout, TGShapedFrame, TGShutter, TGShutterItem, TGSplitFrame, TGStatusBar, TGTab, TGTabLayout, TGTableLayout, TGTableLayoutHints, TGTextButton, TGTextEdit, TGTextEntry, TGTextLBEntry, TGTextView, TGTileLayout, TGToolBar, TGTransientFrame, TGTripleHSlider, TGTripleVSlider, TGVButtonGroup, TGVertical3DLine, TGVerticalFrame, TGVerticalLayout, TGVFileSplitter, TGVProgressBar, TGVScrollBar, TGVSlider, TGVSplitter, TGXYLayout, TGXYLayoutHints, TH1, TH2Poly, THelix, THStack, TLatex, TLegend, TLine, TMacro, TMarker3DBox, TMarker, TMathText, TMultiGraph, TPad, TPaletteAxis, TParallelCoord, TParallelCoordVar, TPave, TPaveClass, TPaveLabel, TPaveStats, TPavesText, TPaveText, TPie, TPieSlice, TPolyLine3D, TPolyLine, TPolyMarker3D, TPolyMarker, TProfile2D, TProfile3D, TProfile, TRootContainer, TRootEmbeddedCanvas, TScatter2D, TScatter, TSlider, TSliderBox, TSpline3, TSpline5, TStyle, TText, TTreePerfStats, and TWbox.
Definition at line 858 of file TObject.cxx.
|
staticprotectedinherited |
Save object constructor in the output stream "out".
Can be used as first statement when implementing SavePrimitive() method for the object
Definition at line 777 of file TObject.cxx.
|
staticprotectedinherited |
Save invocation of primitive Draw() method Skipped if option contains "nodraw" string.
Definition at line 845 of file TObject.cxx.
|
protectedinherited |
Save object name and title into the output stream "out".
Definition at line 135 of file TNamed.cxx.
|
staticprotectedinherited |
Save array in the output stream "out" as vector.
Create unique variable name based on prefix value Returns name of vector which can be used in constructor or in other places of C++ code If flag === kTRUE, just add empty line If flag === 111, check if array is empty and return nullptr or <vectorname>.data()
Definition at line 796 of file TObject.cxx.
|
virtual |
Set address of this branch.
Reimplemented in TBranchClones, TBranchElement, TBranchObject, TBranchSTL, and THbookBranch.
Definition at line 2694 of file TBranch.cxx.
Reimplemented in TBranchElement.
|
virtual |
Set the automatic delete bit.
This bit is used by TBranchObject::ReadBasket to decide if an object referenced by a TBranchObject must be deleted or not before reading a new entry.
If autodel is true, this existing object will be deleted, a new object created by the default constructor, then read from disk by the streamer.
If autodel is false, 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 the streamer).
Reimplemented in TBranchObject.
Definition at line 2728 of file TBranch.cxx.
|
virtual |
Set the basket size The function makes sure that the basket size is greater than fEntryOffsetlen.
Reimplemented in TBranchClones, TBranchElement, and TBranchObject.
Definition at line 2741 of file TBranch.cxx.
Set or unset the user status bits as specified in f.
Definition at line 888 of file TObject.cxx.
|
virtual |
Set address of this branch directly from a TBuffer to avoid streaming.
Note: We do not take ownership of the buffer.
Definition at line 2757 of file TBranch.cxx.
| void TBranch::SetCompressionAlgorithm | ( | Int_t | algorithm = ROOT::RCompressionSetting::EAlgorithm::kUseGlobal | ) |
Set compression algorithm.
Definition at line 2775 of file TBranch.cxx.
| void TBranch::SetCompressionLevel | ( | Int_t | level = ROOT::RCompressionSetting::ELevel::kUseMin | ) |
Set compression level.
Definition at line 2795 of file TBranch.cxx.
| void TBranch::SetCompressionSettings | ( | Int_t | settings = ROOT::RCompressionSetting::EDefaults::kUseCompiledDefault | ) |
Set compression settings.
Definition at line 2817 of file TBranch.cxx.
|
virtualinherited |
Set drawing option for object.
This option only affects the drawing style and is stored in the option field of the TObjOptLink supporting a TPad's primitive list (TList). Note that it does not make sense to call object.SetDrawOption(option) before having called object.Draw().
Reimplemented in RooPlot, TAxis, TBrowser, TGedFrame, TGFrame, TPad, TPaveStats, TRootBrowserLite, TSystemDirectory, and TSystemFile.
Definition at line 871 of file TObject.cxx.
|
staticinherited |
Set destructor only flag.
Definition at line 1204 of file TObject.cxx.
|
virtual |
Set the number of entries in this branch.
Reimplemented in THbookBranch.
Definition at line 2850 of file TBranch.cxx.
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.
Definition at line 2833 of file TBranch.cxx.
|
virtual |
Set file where this branch writes/reads its buffers.
By default the branch buffers reside in the file where the Tree was created. If the file name where the tree was created is an absolute path name or an URL (e.g. root://host/...) and if the fname is not an absolute path name or an URL then the path of the tree file is prepended to fname to make the branch file relative to the tree file. In this case one can move the tree + all branch files to a different location in the file system and still access the branch files. The ROOT file will be connected only when necessary. If called by TBranch::Fill (via TBasket::WriteFile), the file will be created with the option "recreate". If called by TBranch::GetEntry (via TBranch::GetBasket), the file will be opened in read mode. To open a file in "update" mode or with a certain compression level, use TBranch::SetFile(TFile *file).
Definition at line 2920 of file TBranch.cxx.
|
virtual |
Set file where this branch writes/reads its buffers.
By default the branch buffers reside in the file where the Tree was created. If the file name where the tree was created is an absolute path name or an URL (e.g. or root://host/...) and if the fname is not an absolute path name or an URL then the path of the tree file is prepended to fname to make the branch file relative to the tree file. In this case one can move the tree + all branch files to a different location in the file system and still access the branch files. The ROOT file will be connected only when necessary. If called by TBranch::Fill (via TBasket::WriteFile), the file will be created with the option "recreate". If called by TBranch::GetEntry (via TBranch::GetBasket), the file will be opened in read mode. To open a file in "update" mode or with a certain compression level, use TBranch::SetFile(TFile *file).
Definition at line 2875 of file TBranch.cxx.
|
virtualinherited |
Reimplemented in TGWin32VirtualXProxy.
|
inlinevirtualinherited |
Set the fill area color.
Reimplemented in TGQuartz, TGraphMultiErrors, TGWin32, TGWin32VirtualXProxy, TGX11, TPDF, TPostScript, TSpider, TSVG, TTeXDump, and TVirtualX.
Definition at line 40 of file TAttFill.h.
|
inherited |
Reimplemented in TGraphMultiErrors.
|
inlinevirtualinherited |
Set the fill area style.
Reimplemented in TGQuartz, TGraphMultiErrors, TGWin32, TGWin32VirtualXProxy, TGX11, TPad, TSpider, and TVirtualX.
Definition at line 42 of file TAttFill.h.
|
virtual |
set the first entry number (case of TBranchSTL)
Definition at line 3291 of file TBranch.cxx.
|
inline |
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 in TBranchElement.
Definition at line 2939 of file TBranch.cxx.
|
virtualinherited |
Set the name of the TNamed.
WARNING: if the object is a member of a THashTable or THashList container the container must be Rehash()'ed after SetName(). For example the list of objects in the current directory is a THashList.
Reimplemented in RooAbsArg, RooAbsData, RooDataHist, RooDataSet, RooFitResult, RooPlot, ROOT::Experimental::XRooFit::xRooNode, TChain, TColor, TDirectory, TEfficiency, TEventList, TEveScene, TFormula, TGraph2D, TGraph, TH1, TNode, TRotMatrix, TShape, TSystemDirectory, TSystemFile, and TTree.
Definition at line 149 of file TNamed.cxx.
|
virtualinherited |
Set all the TNamed parameters (name and title).
WARNING: if the name is changed and the object is a member of a THashTable or THashList container the container must be Rehash()'ed after SetName(). For example the list of objects in the current directory is a THashList.
Reimplemented in RooAbsArg, RooAbsData, RooDataHist, RooDataSet, RooFitResult, RooPlot, TContextMenu, TGraph2D, TGraph, TH1, and TNode.
Definition at line 163 of file TNamed.cxx.
|
virtual |
Set object this branch is pointing to.
Reimplemented in TBranchElement.
Definition at line 2948 of file TBranch.cxx.
|
staticinherited |
Turn on/off tracking of objects in the TObjectTable.
Definition at line 1188 of file TObject.cxx.
|
inlinevirtual |
Reimplemented in TBranchElement.
|
inlineprotected |
|
virtual |
Set branch status to Process or DoNotProcess.
Definition at line 2959 of file TBranch.cxx.
|
virtualinherited |
Set the title of the TNamed.
Reimplemented in Axis2, RooPlot, ROOT::Experimental::XRooFit::xRooNode, ROOT::TSchemaRule::TSources, TASImage, TEfficiency, TF1, TGraph2D, TGraph, TH1, THnBase, TParallelCoordVar, TSystemDirectory, and TSystemFile.
Definition at line 173 of file TNamed.cxx.
|
inlinevirtual |
Reimplemented in TBranchClones.
|
virtualinherited |
Set the unique object id.
Definition at line 899 of file TObject.cxx.
|
virtual |
If the branch address is not set, we set all addresses starting with the top level parent branch.
Reimplemented in TBranchElement, and TBranchObject.
Definition at line 3306 of file TBranch.cxx.
|
virtualinherited |
Return size of the TNamed part of the TObject.
Reimplemented in TDirectory, TDirectoryFile, TFile, TKey, TSQLFile, and TXMLFile.
Definition at line 182 of file TNamed.cxx.
|
overridevirtual |
Stream a class object.
Reimplemented from TObject.
Reimplemented in TBranchClones, TBranchElement, TBranchObject, TBranchRef, TBranchSTL, and THbookBranch.
Definition at line 2968 of file TBranch.cxx.
|
inline |
| bool TBranch::SupportsBulkRead | ( | ) | const |
Returns true if this branch supports bulk IO, false otherwise.
This will return true if all the various preconditions necessary hold true to perform bulk IO (reasonable type, single TLeaf, etc); the bulk IO may still fail, depending on the contents of the individual TBaskets loaded.
Definition at line 1430 of file TBranch.cxx.
|
virtualinherited |
Issue system error message.
Use "location" to specify the method where the system error occurred. Accepts standard printf formatting arguments.
Definition at line 1112 of file TObject.cxx.
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inlinevirtual |
Reimplemented in TBranchObject.
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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 in TBranchClones, and TBranchElement.
Definition at line 3316 of file TBranch.cxx.
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Issue warning message.
Use "location" to specify the method where the warning occurred. Accepts standard printf formatting arguments.
Definition at line 1084 of file TObject.cxx.
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Write this object to the current directory.
For more see the const version of this method.
Reimplemented in ROOT::TBufferMergerFile, TBuffer, TCollection, TDirectory, TDirectoryFile, TFile, TMap, TParallelMergingFile, TSQLFile, TTree, and TXMLFile.
Definition at line 989 of file TObject.cxx.
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Write this object to the current directory.
The data structure corresponding to this object is serialized. The corresponding buffer is written to the current directory with an associated key with name "name".
Writing an object to a file involves the following steps:
Bufsize can be given to force a given buffer size to write this object. By default, the buffersize will be taken from the average buffer size of all objects written to the current file so far.
If a name is specified, it will be the name of the key. If name is not given, the name of the key will be the name as returned by GetName().
The option can be a combination of: kSingleKey, kOverwrite or kWriteDelete Using the kOverwrite option a previous key with the same name is overwritten. The previous key is deleted before writing the new object. Using the kWriteDelete option a previous key with the same name is deleted only after the new object has been written. This option is safer than kOverwrite but it is slower. NOTE: Neither kOverwrite nor kWriteDelete reduces the size of a TFile– the space is simply freed up to be overwritten; in the case of a TTree, it is more complicated. If one opens a TTree, appends some entries, then writes it out, the behaviour is effectively the same. If, however, one creates a new TTree and writes it out in this way, only the metadata is replaced, effectively making the old data invisible without deleting it. TTree::Delete() can be used to mark all disk space occupied by a TTree as free before overwriting its metadata this way. The kSingleKey option is only used by TCollection::Write() to write a container with a single key instead of each object in the container with its own key.
An object is read from the file into memory via TKey::Read() or via TObject::Read().
The function returns the total number of bytes written to the file. It returns 0 if the object cannot be written.
Reimplemented in TBuffer, TCollection, TDirectory, TDirectoryFile, TFile, TMap, TParallelMergingFile, TSQLFile, TTree, and TXMLFile.
Definition at line 964 of file TObject.cxx.
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Write the current basket to disk and return the number of bytes written to the file.
Definition at line 3214 of file TBranch.cxx.
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Fill area color.
Definition at line 24 of file TAttFill.h.
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Fill area style.
Definition at line 25 of file TAttFill.h.
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