library: libTreePlayer
#include "TChainIndex.h"

TChainIndex


class description - source file - inheritance tree (.pdf)

class TChainIndex : public TVirtualIndex

Inheritance Chart:
TObject
<-
TNamed
<-
TVirtualIndex
<-
TChainIndex

    protected:
void DeleteIndices() pair<TVirtualIndex*,Int_t> GetSubTreeIndex(Int_t major, Int_t minor) const void ReleaseSubTreeIndex(TVirtualIndex* index, Int_t treeNo) const public:
TChainIndex() TChainIndex(const TTree* T, const char* majorname, const char* minorname) TChainIndex(const TChainIndex&) virtual ~TChainIndex() static TClass* Class() virtual Int_t GetEntryNumberFriend(const TTree* T) virtual Long64_t GetEntryNumberWithBestIndex(Int_t major, Int_t minor) const virtual Long64_t GetEntryNumberWithIndex(Int_t major, Int_t minor) const virtual TTreeFormula* GetMajorFormulaParent(const TTree* T) virtual const char* GetMajorName() const virtual TTreeFormula* GetMinorFormulaParent(const TTree* T) virtual const char* GetMinorName() const virtual Long64_t GetN() const virtual TClass* IsA() const TChainIndex& operator=(const TChainIndex&) virtual void SetTree(const TTree* T) virtual void ShowMembers(TMemberInspector& insp, char* parent) virtual void Streamer(TBuffer& b) void StreamerNVirtual(TBuffer& b) virtual void UpdateFormulaLeaves()

Data Members


    protected:
TString fMajorName Index major name TString fMinorName Index minor name TTreeFormula* fMajorFormulaParent ! Pointer to major TreeFormula in Parent tree (if any) TTreeFormula* fMinorFormulaParent ! Pointer to minor TreeFormula in Parent tree (if any) vector<TChainIndexEntry> fEntries descriptions of indices of trees in the chain.

Class Description

 A Chain Index



TChainIndex(): TVirtualIndex()
 Default constructor for TChainIndex

TChainIndex(const TTree *T, const char *majorname, const char *minorname) : TVirtualIndex()
 Normal constructor for TChainIndex. See TTreeIndex::TTreeIndex for the description of the
 parameters.
 The tree must be a TChain.
 All the index values in the first tree of the chain must be
 less then any index value in the second one, and so on.
 If any of those requirements isn't met the object becomes a zombie.
 If some subtrees don't have indices the indices are created and stored inside this
 TChainIndex.

void DeleteIndices()
 Delete all the indices which were built by this object

~TChainIndex()
 The destructor.

void ReleaseSubTreeIndex(TVirtualIndex* index, int treeNo) const
 Releases the tree index got using GetSubTreeIndex. If the index was
 created by this object it is removed from the current tree, so that it isn't
 deleted in its destructor.

Int_t GetEntryNumberFriend(const TTree *T)
 see TTreeIndex::GetEntryNumberFriend for description

Long64_t GetEntryNumberWithBestIndex(Int_t major, Int_t minor) const
 See TTreeIndex::GetEntryNumberWithBestIndex for details.

Long64_t GetEntryNumberWithIndex(Int_t major, Int_t minor) const
 Returns the entry number with given index values.
 See TTreeIndex::GetEntryNumberWithIndex for details.

TTreeFormula* GetMajorFormulaParent(const TTree *T)
 return a pointer to the TreeFormula corresponding to the majorname in parent tree T

TTreeFormula* GetMinorFormulaParent(const TTree *T)
 return a pointer to the TreeFormula corresponding to the minorname in parent tree T

void UpdateFormulaLeaves()
 Updates the parent formulae.
 Called by TChain::LoadTree when the parent chain changes it's tree.

void SetTree(const TTree *T)
 See TTreeIndex::SetTree.
 Used only by the streamer.



Inline Functions


        pair<TVirtualIndex*,Int_t> GetSubTreeIndex(Int_t major, Int_t minor) const
                       const char* GetMajorName() const
                       const char* GetMinorName() const
                          Long64_t GetN() const
                           TClass* Class()
                           TClass* IsA() const
                              void ShowMembers(TMemberInspector& insp, char* parent)
                              void Streamer(TBuffer& b)
                              void StreamerNVirtual(TBuffer& b)
                       TChainIndex TChainIndex(const TChainIndex&)
                      TChainIndex& operator=(const TChainIndex&)


Author: Marek Biskup 07/06/2005
Last update: root/tree:$Name: $:$Id: TChainIndex.cxx,v 1.4 2005/09/03 02:21:32 pcanal Exp $
Copyright (C) 1995-2004, Rene Brun and Fons Rademakers. *


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