Base class for objects that can be linked to an input tree directly. More...

#include <ReaderObject.h>

Inheritance diagram for panda::ReaderObject:

Public Member Functions
	ReaderObject (ReaderObject const &src)

ReaderObject &	operator= (ReaderObject const &)

Int_t	getEntry (TTree &tree, Long64_t entry, Bool_t localEntry=kFALSE) final
	Read an entry from an input tree. More...

Int_t	getEntry (UInt_t treeId, Long64_t entry, Bool_t localEntry=kFALSE) override
	Read an entry from an input tree. More...

virtual void	unlink (TTree &)
	Unlink from a tree.

void	updateBranchArray (TTree &)

Public Member Functions inherited from panda::Object
	Object (Object const &)

Object &	operator= (Object const &)

virtual void	setStatus (TTree &tree, utils::BranchList const &)
	Set status of branches to true (matching branch) or false (vetoed branch) More...

virtual utils::BranchList	getStatus (TTree &) const
	Get status of branches in the tree.

virtual utils::BranchList	getBranchNames (Bool_t fullName=kTRUE, Bool_t direct=kFALSE) const
	Get the full list of branch names. More...

virtual UInt_t	setAddress (TTree &tree, utils::BranchList const &={"*"}, Bool_t setStatus=kTRUE)
	Bind the tree branches to the elements of this object. More...

virtual void	book (TTree &tree, utils::BranchList const &={"*"})
	Book new branches bound to this object on the tree. More...

virtual Int_t	fill (TTree &tree)
	Fill a tree. More...

virtual void	init ()
	Reset the object state.

virtual char const *	getName () const
	Name of this object.

virtual void	setName (char const *)
	Set object name.

virtual void	print (std::ostream &out=std::cout, UInt_t level=1) const
	Print the object content.

virtual void	dump (std::ostream &=std::cout) const
	Dump the object content.

Protected Types
typedef std::vector< TBranch * >	BranchArray

typedef std::pair< TTree *, BranchArray >	BranchMapping
	List of branches linked with this object in the tree.

Protected Member Functions
UInt_t	registerInput_ (TTree &)

Protected Attributes
std::vector< BranchMapping >	inputBranches_
	List of list of input branches. More...

Detailed Description

Base class for objects that can be linked to an input tree directly.

Member Function Documentation

§ getEntry() [1/2]

Int_t panda::ReaderObject::getEntry	(	TTree &	tree,
		Long64_t	entry,
		Bool_t	localEntry = `kFALSE`
	)

finalvirtual

Read an entry from an input tree.

Parameters

tree	Tree to get the entry from.
entry	Entry number in the input tree.
localEntry	If true, entry must be the local entry number of the current tree (i.e. return value of LoadTree)

If localEntry is false, calls tree.LoadEntry(entry).

Returns: Number of bytes read.

Reimplemented from panda::Object.

§ getEntry() [2/2]

Int_t panda::ReaderObject::getEntry	(	UInt_t	treeId,
		Long64_t	entry,
		Bool_t	localEntry = `kFALSE`
	)

overridevirtual

Read an entry from an input tree.

Parameters

treeId	Index of the tree in the inputBranches_ vector.
entry	Entry number in the input tree.
localEntry	If true, entry must be the local entry number of the current tree (i.e. return value of LoadTree)

If localEntry is false, calls tree.LoadEntry(entry).

Returns: Number of bytes read.

Reimplemented from panda::Object.

Reimplemented in panda::TreeEntry.

Member Data Documentation

§ inputBranches_

std::vector<BranchMapping> panda::ReaderObject::inputBranches_

protected

List of list of input branches.

With vector<BranchMapping> implementation, we will be serially searching for a tree whenever getEntry(tree, entry) is called. Alternative would be to use a map<TTree*, BranchArray> to make use of binary-tree lookup. However most of the time we will be dealing with one input tree, and at most a few input trees, that the map implementation actually won't make sense.

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

Framework/interface/ReaderObject.h
Framework/src/ReaderObject.cc

Public Member Functions

Protected Types