class ROOT::Internal::TTreeReaderValueBase


TTreeReaderValue

A simple interface for reading data from trees or chains.

Function Members (Methods)

This is an abstract class, constructors will not be documented.
Look at the header to check for available constructors.

public:

virtual	~TTreeReaderValueBase()
void*	GetAddress()
const char*	GetBranchName() const
TLeaf*	GetLeaf()
virtual ROOT::Internal::TTreeReaderValueBase::EReadStatus	GetReadStatus() const
ROOT::Internal::TTreeReaderValueBase::ESetupStatus	GetSetupStatus() const
Bool_t	IsValid() const
ROOT::Internal::TTreeReaderValueBase::EReadStatus	ProxyRead()

protected:

virtual void	CreateProxy()
const char*	GetBranchDataType(TBranch* branch, TDictionary*& dict) const
virtual const char*	GetDerivedTypeName() const
static string	GetElementTypeName(const type_info& ti)
ROOT::Detail::TBranchProxy*	GetProxy() const
void	MarkTreeReaderUnavailable()
void	NotifyNewTree(TTree* newTree)
ROOT::Internal::TTreeReaderValueBase&	operator=(const ROOT::Internal::TTreeReaderValueBase&)
void	RegisterWithTreeReader()
ROOT::Internal::TTreeReaderValueBase	TTreeReaderValueBase(const ROOT::Internal::TTreeReaderValueBase&)
ROOT::Internal::TTreeReaderValueBase	TTreeReaderValueBase(TTreeReader* reader = 0, const char* branchname = 0, TDictionary* dict = 0)

public:

static ROOT::Internal::TTreeReaderValueBase::EReadStatus	kReadError
static ROOT::Internal::TTreeReaderValueBase::EReadStatus	kReadNothingYet
static ROOT::Internal::TTreeReaderValueBase::EReadStatus	kReadSuccess
static ROOT::Internal::TTreeReaderValueBase::ESetupStatus	kSetupInternalError
static ROOT::Internal::TTreeReaderValueBase::ESetupStatus	kSetupMakeClassModeMismatch
static ROOT::Internal::TTreeReaderValueBase::ESetupStatus	kSetupMatch
static ROOT::Internal::TTreeReaderValueBase::ESetupStatus	kSetupMatchBranch
static ROOT::Internal::TTreeReaderValueBase::ESetupStatus	kSetupMatchLeaf
static ROOT::Internal::TTreeReaderValueBase::ESetupStatus	kSetupMismatch
static ROOT::Internal::TTreeReaderValueBase::ESetupStatus	kSetupMissingBranch
static ROOT::Internal::TTreeReaderValueBase::ESetupStatus	kSetupMissingCounterBranch
static ROOT::Internal::TTreeReaderValueBase::ESetupStatus	kSetupMissingDictionary
static ROOT::Internal::TTreeReaderValueBase::ESetupStatus	kSetupNoCheck
static ROOT::Internal::TTreeReaderValueBase::ESetupStatus	kSetupNotACollection
static ROOT::Internal::TTreeReaderValueBase::ESetupStatus	kSetupNotSetup
static ROOT::Internal::TTreeReaderValueBase::ESetupStatus	kSetupTreeDestructed

protected:

TString	fBranchName	name of the branch to read data from.
TDictionary*	fDict	type that the branch should contain
TLeaf*	fLeaf
TString	fLeafName
ROOT::Detail::TBranchProxy*	fProxy	proxy for this branch, owned by TTreeReader
ROOT::Internal::TTreeReaderValueBase::EReadStatus	fReadStatus	read status of this data access
ROOT::Internal::TTreeReaderValueBase::ESetupStatus	fSetupStatus	setup status of this data access
vector<Long64_t>	fStaticClassOffsets
TTreeReader*	fTreeReader	tree reader we belong to

Inheritance Chart:

ROOT::Internal::TTreeReaderValueBase

←

ROOT::Internal::TTreeReaderArrayBase

EReadStatus ProxyRead()

{ return fProxy && 0 == (int)fSetupStatus && 0 == (int)fReadStatus; }

ESetupStatus GetSetupStatus() const

{ return fSetupStatus; }

EReadStatus GetReadStatus() const

{ return fReadStatus; }

 If we are reading a leaf, return the corresponding TLeaf.

{ return fLeaf; }

const char* GetBranchName() const

{ return fBranchName; }

TTreeReaderValueBase(TTreeReader* reader = 0, const char* branchname = 0, TDictionary* dict = 0)

const char* GetBranchDataType(TBranch* branch, TDictionary*& dict) const

Detail::TBranchProxy* GetProxy() const

{ return fProxy; }

{ fTreeReader = 0; fSetupStatus = kSetupTreeDestructed; }

std::string GetElementTypeName(const type_info& ti)

 Stringify the template argument.

const char* GetDerivedTypeName() const

 FIXME: use IsA() instead once we have ClassDefTInline
 Get the template argument as a string.