source: HiSusy/trunk/Delphes/Delphes-3.0.9/external/ExRootAnalysis/ExRootTreeReader.h @ 5

Last change on this file since 5 was 5, checked in by zerwas, 11 years ago

update to Delphes-3.0.9
File size: 1019 bytes
Line 
1#ifndef ExRootTreeReader_h
2#define ExRootTreeReader_h
3
4/** \class ExRootTreeReader
5 *
6 *  Class simplifying access to ROOT tree branches
7 *
8 *  $Date: 2008-06-04 13:57:27 $
9 *  $Revision: 1.1 $
10 *
11 *
12 *  \author P. Demin - UCL, Louvain-la-Neuve
13 *
14 */
15
16#include "TROOT.h"
17#include "TNamed.h"
18#include "TChain.h"
19#include "TFile.h"
20
21#include <map>
22
23class ExRootTreeReader : public TNamed
24{
25public :
26
27  ExRootTreeReader(TTree *tree = 0);
28  ~ExRootTreeReader();
29
30  void SetTree(TTree *tree) { fChain = tree; }
31
32  Long64_t GetEntries() const { return fChain ? static_cast<Long64_t>(fChain->GetEntries()) : 0; }
33  Bool_t ReadEntry(Long64_t entry);
34
35  TClonesArray *UseBranch(const char *branchName);
36
37private:
38
39  Bool_t Notify();
40
41  TTree *fChain; //! pointer to the analyzed TTree or TChain
42  Int_t fCurrentTree; //! current Tree number in a TChain
43
44  typedef std::map<TString, std::pair<TBranch*, TClonesArray*> > TBranchMap;
45
46  TBranchMap fBranchMap; //!
47
48  ClassDef(ExRootTreeReader, 1)
49};
50
51#endif // ExRootTreeReader_h
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