class ROOT::TTreeReaderValueBase


TTreeReaderValue

Extracts data from a TTree.

Function Members (Methods)

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

public:

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

protected:

virtual	~TTreeReaderValueBase()
virtual void	CreateProxy()
const char*	GetBranchDataType(TBranch* branch, TDictionary*& dict) const
virtual const char*	GetDerivedTypeName() const
ROOT::TBranchProxy*	GetProxy() const
void	MarkTreeReaderUnavailable()
ROOT::TTreeReaderValueBase	TTreeReaderValueBase(TTreeReader* reader = 0, const char* branchname = 0, TDictionary* dict = 0)

Data Members

public:

static ROOT::TTreeReaderValueBase::EReadStatus	kReadError
static ROOT::TTreeReaderValueBase::EReadStatus	kReadNothingYet
static ROOT::TTreeReaderValueBase::EReadStatus	kReadSuccess
static ROOT::TTreeReaderValueBase::ESetupStatus	kSetupClassMismatch
static ROOT::TTreeReaderValueBase::ESetupStatus	kSetupInternalError
static ROOT::TTreeReaderValueBase::ESetupStatus	kSetupMakeClass
static ROOT::TTreeReaderValueBase::ESetupStatus	kSetupMakeClassModeMismatch
static ROOT::TTreeReaderValueBase::ESetupStatus	kSetupMatch
static ROOT::TTreeReaderValueBase::ESetupStatus	kSetupMatchBranch
static ROOT::TTreeReaderValueBase::ESetupStatus	kSetupMatchConversion
static ROOT::TTreeReaderValueBase::ESetupStatus	kSetupMatchConversionCollection
static ROOT::TTreeReaderValueBase::ESetupStatus	kSetupMatchLeaf
static ROOT::TTreeReaderValueBase::ESetupStatus	kSetupMismatch
static ROOT::TTreeReaderValueBase::ESetupStatus	kSetupMissingBranch
static ROOT::TTreeReaderValueBase::ESetupStatus	kSetupMissingCompiledCollectionProxy
static ROOT::TTreeReaderValueBase::ESetupStatus	kSetupMissingCounterBranch
static ROOT::TTreeReaderValueBase::ESetupStatus	kSetupNoCheck
static ROOT::TTreeReaderValueBase::ESetupStatus	kSetupNotSetup
static ROOT::TTreeReaderValueBase::ESetupStatus	kSetupTreeDestructed
static ROOT::TTreeReaderValueBase::ESetupStatus	kSetupVoidPtr

protected:

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

Class Charts

Inheritance Inherited Members Includes Libraries

Function documentation

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

 Construct a tree value reader and register it with the reader object.

~TTreeReaderValueBase()

 Unregister from tree reader, cleanup.

ProxyRead()

 Try to read the value from the TBranchProxy, returns
 the status of the read.

TLeaf* GetLeaf()

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

void* GetAddress()

 Returns the memory address of the object being read.

void CreateProxy()

 Create the proxy object for our branch.

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

 Retrieve the type of data stored by branch; put its dictionary into
 dict, return its type name. If no dictionary is available, at least
 its type name should be returned.

Bool_t IsValid() const

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

ESetupStatus GetSetupStatus() const

{ return fSetupStatus; }

EReadStatus GetReadStatus() const

{ return fReadStatus; }

const char* GetBranchName() const

{ return fBranchName; }

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

const char* GetDerivedTypeName() const

ROOT::TBranchProxy* GetProxy() const

{ return fProxy; }

void MarkTreeReaderUnavailable()

{ fTreeReader = 0; }