library: libTree #include "TBranchObject.h" |
TBranchObject
class description - source file - inheritance tree (.pdf)
public:
TBranchObject()
TBranchObject(const char* name, const char* classname, void* addobj, Int_t basketsize = 32000, Int_t splitlevel = 0, Int_t compress = -1)
virtual ~TBranchObject()
virtual void Browse(TBrowser* b)
static TClass* Class()
virtual Int_t Fill()
virtual const char* GetClassName() const
virtual Int_t GetEntry(Long64_t entry = 0, Int_t getall = 0)
virtual const char* GetObjClassName() const
virtual TClass* IsA() const
virtual Bool_t IsFolder() const
virtual void Print(Option_t* option = "") const
virtual void Reset(Option_t* option = "")
virtual void SetAddress(void* addobj)
virtual void SetAutoDelete(Bool_t autodel = kTRUE)
virtual void SetBasketSize(Int_t buffsize)
virtual void ShowMembers(TMemberInspector& insp, char* parent)
virtual void Streamer(TBuffer& b)
void StreamerNVirtual(TBuffer& b)
virtual void UpdateAddress()
protected:
TString fClassName Class name of referenced object
TObject* fOldObject !Pointer to old object
public:
static const enum TBranchObject:: kWarn
TBranchObject
A Branch for the case of an object //
TBranchObject(): TBranch()
*-*-*-*-*-*Default constructor for BranchObject*-*-*-*-*-*-*-*-*-*
*-* ====================================
TBranchObject(const char *name, const char *classname, void *addobj, Int_t basketsize, Int_t splitlevel, Int_t compress)
:TBranch()
*-*-*-*-*-*-*-*-*-*-*-*-*Create a BranchObject*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
*-* =====================
~TBranchObject()
*-*-*-*-*-*Default destructor for a BranchObject*-*-*-*-*-*-*-*-*-*-*-*
*-* =====================================
void Browse(TBrowser *b)
Int_t Fill()
*-*-*-*-*-*-*-*Loop on all leaves of this branch to fill Basket buffer*-*-*
*-* =======================================================
Int_t GetEntry(Long64_t entry, Int_t getall)
*-*-*-*-*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.
Bool_t IsFolder() const
*-*-*-*-*Return TRUE if more than one leaf or if fBorwsables, FALSE otherwise*-*
*-* ====================================================================
void Print(Option_t *option) const
*-*-*-*-*-*-*-*-*-*-*-*Print TBranch parameters*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
*-* ========================
void Reset(Option_t *option)
*-*-*-*-*-*-*-*Reset a Branch*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
*-* ====================
Existing buffers are deleted
Entries, max and min are reset
void SetAddress(void *add)
*-*-*-*-*-*-*-*Set address of this branch*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
*-* ====================
void SetAutoDelete(Bool_t autodel)
*-*-*-*-*-*-*-*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.
void SetBasketSize(Int_t buffsize)
*-*-*-*-*-*-*-*Reset basket size for all subbranches of this branchobject
*-* ==========================================================
void Streamer(TBuffer &R__b)
Stream an object of class TBranchObject.
void UpdateAddress()
*-*-*-*-*-*-*-*Update branch addresses if a new object was created*-*-*
*-* ===================================================
Inline Functions
const char* GetClassName() const
const char* GetObjClassName() const
TClass* Class()
TClass* IsA() const
void ShowMembers(TMemberInspector& insp, char* parent)
void StreamerNVirtual(TBuffer& b)
Author: Rene Brun 11/02/96
Last update: root/tree:$Name: $:$Id: TBranchObject.cxx,v 1.32 2005/09/03 02:21:32 pcanal Exp $
Copyright (C) 1995-2000, Rene Brun and Fons Rademakers. *
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