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Reference Guide
ROOT::Internal::TTreeReaderGenerator Class Reference

Definition at line 85 of file TTreeReaderGenerator.h.

Public Member Functions

 TTreeReaderGenerator (TTree *tree, const char *classname, Option_t *option)
 Constructor. Analyzes the tree and writes selector. More...
 
- Public Member Functions inherited from ROOT::Internal::TTreeGeneratorBase
 TTreeGeneratorBase (TTree *tree, const char *option)
 Constructor. More...
 
void AddHeader (const char *classname)
 Add a header inclusion request. More...
 
void AddHeader (TClass *cl)
 Add a header inclusion request. More...
 
TVirtualStreamerInfoGetBaseClass (TStreamerElement *element)
 Check if element is a base class and if yes, return the base class. More...
 
TString GetContainedClassName (TBranchElement *branch, TStreamerElement *element, Bool_t ispointer)
 Get name of class inside a container. More...
 
TVirtualStreamerInfoGetStreamerInfo (TBranch *branch, TIter current, TClass *cl)
 Return the correct TStreamerInfo of class 'cl' in the list of branches (current) [Assuming these branches correspond to a flattened version of the class. More...
 

Private Member Functions

void AddReader (TTreeReaderDescriptor::ReaderType type, TString dataType, TString name, TString branchName, TBranchDescriptor *parent=0, Bool_t isLeaf=kTRUE)
 Add a reader to the generated code. More...
 
UInt_t AnalyzeBranches (TBranchDescriptor *desc, TBranchElement *branch, TVirtualStreamerInfo *info)
 Analyse sub-branches of 'branch' recursively and extract readers. More...
 
UInt_t AnalyzeBranches (TBranchDescriptor *desc, TIter &branches, TVirtualStreamerInfo *info)
 Analyse sub-branches 'branches' recursively and extract readers. More...
 
UInt_t AnalyzeOldBranch (TBranch *branch)
 Analyze branch and add the variables found. More...
 
UInt_t AnalyzeOldLeaf (TLeaf *leaf, Int_t nleaves)
 Analyze the leaf and add the variables found. More...
 
void AnalyzeTree (TTree *tree)
 Analyze tree and extract readers. More...
 
Bool_t BranchNeedsReader (TString branchName, TBranchDescriptor *parent, Bool_t isLeaf)
 Check whether a branch should have a corresponding reader added, depending on the options provided by the user. More...
 
void ParseOptions ()
 Parse the user options. More...
 
void WriteSelector ()
 Generate code for selector class. More...
 

Private Attributes

TString fClassname
 Class name of the selector. More...
 
Bool_t fIncludeAllLeaves
 Should all leaves be included. More...
 
Bool_t fIncludeAllTopmost
 Should all topmost branches be included. More...
 
std::vector< TStringfIncludeLeaves
 Branches whose leaves should be included. More...
 
std::vector< TStringfIncludeStruct
 Branches whom should be included. More...
 
TList fListOfReaders
 List of readers. More...
 

Additional Inherited Members

- Public Attributes inherited from ROOT::Internal::TTreeGeneratorBase
TList fListOfHeaders
 List of included headers. More...
 
TString fOptionStr
 User options as a string. More...
 
TTreefTree
 Pointer to the tree. More...
 

#include <TTreeReaderGenerator.h>

Inheritance diagram for ROOT::Internal::TTreeReaderGenerator:
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Constructor & Destructor Documentation

◆ TTreeReaderGenerator()

ROOT::Internal::TTreeReaderGenerator::TTreeReaderGenerator ( TTree tree,
const char *  classname,
Option_t option 
)

Constructor. Analyzes the tree and writes selector.

Definition at line 41 of file TTreeReaderGenerator.cxx.

Member Function Documentation

◆ AddReader()

void ROOT::Internal::TTreeReaderGenerator::AddReader ( TTreeReaderDescriptor::ReaderType  type,
TString  dataType,
TString  name,
TString  branchName,
TBranchDescriptor parent = 0,
Bool_t  isLeaf = kTRUE 
)
private

Add a reader to the generated code.

Definition at line 53 of file TTreeReaderGenerator.cxx.

◆ AnalyzeBranches() [1/2]

UInt_t ROOT::Internal::TTreeReaderGenerator::AnalyzeBranches ( TBranchDescriptor desc,
TBranchElement branch,
TVirtualStreamerInfo info 
)
private

Analyse sub-branches of 'branch' recursively and extract readers.

Definition at line 85 of file TTreeReaderGenerator.cxx.

◆ AnalyzeBranches() [2/2]

UInt_t ROOT::Internal::TTreeReaderGenerator::AnalyzeBranches ( TBranchDescriptor desc,
TIter branches,
TVirtualStreamerInfo info 
)
private

Analyse sub-branches 'branches' recursively and extract readers.

Definition at line 97 of file TTreeReaderGenerator.cxx.

◆ AnalyzeOldBranch()

UInt_t ROOT::Internal::TTreeReaderGenerator::AnalyzeOldBranch ( TBranch branch)
private

Analyze branch and add the variables found.

The number of analyzed sub-branches is returned.

Definition at line 458 of file TTreeReaderGenerator.cxx.

◆ AnalyzeOldLeaf()

UInt_t ROOT::Internal::TTreeReaderGenerator::AnalyzeOldLeaf ( TLeaf leaf,
Int_t  nleaves 
)
private

Analyze the leaf and add the variables found.

Definition at line 480 of file TTreeReaderGenerator.cxx.

◆ AnalyzeTree()

void ROOT::Internal::TTreeReaderGenerator::AnalyzeTree ( TTree tree)
private

Analyze tree and extract readers.

Definition at line 645 of file TTreeReaderGenerator.cxx.

◆ BranchNeedsReader()

Bool_t ROOT::Internal::TTreeReaderGenerator::BranchNeedsReader ( TString  branchName,
TBranchDescriptor parent,
Bool_t  isLeaf 
)
private

Check whether a branch should have a corresponding reader added, depending on the options provided by the user.

Definition at line 588 of file TTreeReaderGenerator.cxx.

◆ ParseOptions()

void ROOT::Internal::TTreeReaderGenerator::ParseOptions ( )
private

Parse the user options.

Definition at line 617 of file TTreeReaderGenerator.cxx.

◆ WriteSelector()

void ROOT::Internal::TTreeReaderGenerator::WriteSelector ( )
private

Generate code for selector class.

Definition at line 783 of file TTreeReaderGenerator.cxx.

Member Data Documentation

◆ fClassname

TString ROOT::Internal::TTreeReaderGenerator::fClassname
private

Class name of the selector.

Definition at line 87 of file TTreeReaderGenerator.h.

◆ fIncludeAllLeaves

Bool_t ROOT::Internal::TTreeReaderGenerator::fIncludeAllLeaves
private

Should all leaves be included.

Definition at line 89 of file TTreeReaderGenerator.h.

◆ fIncludeAllTopmost

Bool_t ROOT::Internal::TTreeReaderGenerator::fIncludeAllTopmost
private

Should all topmost branches be included.

Definition at line 90 of file TTreeReaderGenerator.h.

◆ fIncludeLeaves

std::vector<TString> ROOT::Internal::TTreeReaderGenerator::fIncludeLeaves
private

Branches whose leaves should be included.

Definition at line 91 of file TTreeReaderGenerator.h.

◆ fIncludeStruct

std::vector<TString> ROOT::Internal::TTreeReaderGenerator::fIncludeStruct
private

Branches whom should be included.

Definition at line 92 of file TTreeReaderGenerator.h.

◆ fListOfReaders

TList ROOT::Internal::TTreeReaderGenerator::fListOfReaders
private

List of readers.

Definition at line 88 of file TTreeReaderGenerator.h.

Libraries for ROOT::Internal::TTreeReaderGenerator:
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The documentation for this class was generated from the following files: