garana::TreeReader Class Reference

#include <TreeReader.h>

Inheritance diagram for garana::TreeReader:

Public Member Functions
virtual	~TreeReader ()
void	SetupRead (TTree *tree)
TTree *	GetInputTree ()
size_t	NEntries () const
virtual void	GetEntry (const UInt_t &ientry)
Int_t	Event () const
const TObjArray *	GetBranchList () const
void	Fill ()
void	Write ()
void	CheckOpt (char opt)
bool	BlockWrite () const
virtual bool	SetBranchAddresses ()=0

Protected Attributes
const std::string	treename
char	fOpt = 'r'
TTree *	fTreeIn = nullptr
	pointer to the analyzed TTree or TChain More...
UInt_t	fCurrentEntry = UINT_MAX
TBranch *	b_Event = nullptr
Int_t	fEvent = -1
	event number for tree entry More...

Detailed Description

Definition at line 26 of file TreeReader.h.

Constructor & Destructor Documentation

virtual garana::TreeReader::~TreeReader ( )

inlinevirtual

Definition at line 30 of file TreeReader.h.

{};

Member Function Documentation

bool TreeReader::BlockWrite

(

)

const

Definition at line 93 of file TreeReader.cxx.

                                 {
        if(fOpt!='w') {
                std::cerr  << "WARNING(TreeReader): Write method invoked for read-only accessor - "
                                   << " ignoring method call..." << std::endl;
                return true;
        }
        return false;
}

void TreeReader::CheckOpt

(

char

opt

)

Definition at line 67 of file TreeReader.cxx.

                                  {
        switch(opt) {
        case('W') :
                fOpt = 'w';
                return;

        case('R') :
                fOpt = 'r';
                return;

        case('w') :
                fOpt = 'w';
                return;
        case('r') :
                fOpt = 'r';
                return;

        default :
                std::cerr << "WARNING(TreeReader): Unknown option specified '"
                                  << opt << "'. Option should be 'R'/'r' (read-only)"
                                  << " or 'W'/'w' (write). Setting option to read-only."
                                  << std::endl;
                fOpt = 'r';
        }
}

Int_t TreeReader::Event

(

)

const

Definition at line 30 of file TreeReader.cxx.

                              {

        return fEvent;
}

void TreeReader::Fill

(

)

Definition at line 51 of file TreeReader.cxx.

                      {
        if(BlockWrite())
                return;

        fTreeIn->Fill();
}

const TObjArray * TreeReader::GetBranchList

(

)

const

Definition at line 47 of file TreeReader.cxx.

                                                 {
        return fTreeIn->GetListOfBranches();
}

void TreeReader::GetEntry ( const UInt_t &  ientry = 0 )

virtual

Reimplemented in garana::FlatGenTree, and garana::FlatG4Tree.

Definition at line 39 of file TreeReader.cxx.

                                                {
        if(ientry != fCurrentEntry) {
                fCurrentEntry = ientry;
                fTreeIn->GetEntry(ientry);
        }
    return;
}

TTree * TreeReader::GetInputTree

(

)

Definition at line 26 of file TreeReader.cxx.

                               {
    return fTreeIn;
}

size_t TreeReader::NEntries

(

)

const

Definition at line 35 of file TreeReader.cxx.

                                  {
    return fTreeIn->GetEntries();
}

virtual bool garana::TreeReader::SetBranchAddresses ( )

pure virtual

Implemented in garana::FlatRecoTree, garana::StructuredRecoTree, garana::FlatGenTree, garana::FlatG4Tree, garana::StructuredG4Tree, garana::HeaderTree, garana::StructuredDetTree, garana::FlatDetTree, garana::FlatDisplayTree, garana::StructuredDisplayTree, and garana::StructuredGenTree.

void TreeReader::SetupRead

(

TTree *

tree = 0

)

Definition at line 6 of file TreeReader.cxx.

                                       {

        fTreeIn = tree;
        fOpt = 'r';

        try{
       if(!fTreeIn)
           throw fTreeIn;

       if(!SetBranchAddresses())
           throw false;
        }
        catch(TTree* t){
                std::cerr << "TreeReader::SetupRead error: input tree not valid" << std::endl;
        }
        catch(bool set){
        std::cerr << "TreeReader::SetupRead error: failed to set branch addresses" << std::endl;
        }
}

void TreeReader::Write

(

)

Definition at line 58 of file TreeReader.cxx.

                      {
        if(BlockWrite())
                return;

        //fTreeIn->GetCurrentFile()->Write();
        fTreeIn->Write();
}

Member Data Documentation

TBranch* garana::TreeReader::b_Event = nullptr

protected

Definition at line 54 of file TreeReader.h.

UInt_t garana::TreeReader::fCurrentEntry = UINT_MAX

protected

Definition at line 52 of file TreeReader.h.

Int_t garana::TreeReader::fEvent = -1

protected

event number for tree entry

Definition at line 55 of file TreeReader.h.

char garana::TreeReader::fOpt = 'r'

protected

Definition at line 50 of file TreeReader.h.

TTree* garana::TreeReader::fTreeIn = nullptr

protected

pointer to the analyzed TTree or TChain

Definition at line 51 of file TreeReader.h.

const std::string garana::TreeReader::treename

protected

Definition at line 48 of file TreeReader.h.

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

• garana/garana/Base/TreeReader.h
• garana/garana/Base/TreeReader.cxx