RNTupleIterator Class Reference

Iterator over RNTuple fields & visualization entry.

Author

Sergey Linev S.Lin.nosp@m.ev@g.nosp@m.si.de

Date

2021-03-08

Warning

This is part of the ROOT 7 prototype! It will change without notice. It might trigger earthquakes. Feedback is welcome!

Definition at line 329 of file RNTupleBrowseProvider.cxx.

Public Member Functions
	RNTupleIterator (std::shared_ptr< ROOT::RNTupleReader > ntplReader, std::vector< ROOT::DescriptorId_t > &&ids, const std::string &parent_name="", bool includeVisualization=false, const std::string &fileName="")
	~RNTupleIterator () override=default
bool	CanItemHaveChilds () const override
	Returns true if current item can have childs.
std::unique_ptr< RItem >	CreateItem () override
	Create element for the browser.
std::shared_ptr< RElement >	GetElement () override
	Create RElement for current entry - may take much time to load object or open file.
std::string	GetItemName () const override
	Returns current entry name
bool	Next () override
	Shift to next entry.
Public Member Functions inherited from ROOT::Browsable::RLevelIter
virtual	~RLevelIter ()=default
virtual bool	Find (const std::string &name, int indx=-1)
	Find item with specified name Default implementation, should work for all If index specified, not only name but also index should match.

Private Attributes
std::vector< ROOT::DescriptorId_t >	fActualFieldIds
int	fCounter {-1}
std::string	fFileName
bool	fHasVisualization {false}
std::shared_ptr< ROOT::RNTupleReader >	fNtplReader
std::string	fParentName
std::vector< ROOT::DescriptorId_t >	fProvidedFieldIds
int	fTotalItems {0}

Inheritance diagram for RNTupleIterator:

Constructor & Destructor Documentation

RNTupleIterator()

RNTupleIterator::RNTupleIterator ( std::shared_ptr< ROOT::RNTupleReader > ntplReader, std::vector< ROOT::DescriptorId_t > && ids, const std::string & parent_name = "", bool includeVisualization = false, const std::string & fileName = "" )

inline

Definition at line 340 of file RNTupleBrowseProvider.cxx.

~RNTupleIterator()

RNTupleIterator::~RNTupleIterator ( )

overridedefault

Member Function Documentation

CanItemHaveChilds()

bool RNTupleIterator::CanItemHaveChilds ( ) const

inlineoverridevirtual

Returns true if current item can have childs.

Reimplemented from ROOT::Browsable::RLevelIter.

Definition at line 374 of file RNTupleBrowseProvider.cxx.

CreateItem()

std::unique_ptr< RItem > RNTupleIterator::CreateItem ( )

inlineoverridevirtual

Create element for the browser.

Reimplemented from ROOT::Browsable::RLevelIter.

Definition at line 385 of file RNTupleBrowseProvider.cxx.

GetElement()

std::shared_ptr< RElement > RNTupleIterator::GetElement ( )

inlineoverridevirtual

Create RElement for current entry - may take much time to load object or open file.

Implements ROOT::Browsable::RLevelIter.

Definition at line 409 of file RNTupleBrowseProvider.cxx.

GetItemName()

std::string RNTupleIterator::GetItemName ( ) const

inlineoverridevirtual

Returns current entry name

Implements ROOT::Browsable::RLevelIter.

Definition at line 365 of file RNTupleBrowseProvider.cxx.

Next()

bool RNTupleIterator::Next ( )

inlineoverridevirtual

Shift to next entry.

Implements ROOT::Browsable::RLevelIter.

Definition at line 363 of file RNTupleBrowseProvider.cxx.

Member Data Documentation

fActualFieldIds

std::vector<ROOT::DescriptorId_t> RNTupleIterator::fActualFieldIds

private

Definition at line 332 of file RNTupleBrowseProvider.cxx.

fCounter

int RNTupleIterator::fCounter {-1}

private

Definition at line 335 of file RNTupleBrowseProvider.cxx.

fFileName

std::string RNTupleIterator::fFileName

private

Definition at line 334 of file RNTupleBrowseProvider.cxx.

fHasVisualization

bool RNTupleIterator::fHasVisualization {false}

private

Definition at line 336 of file RNTupleBrowseProvider.cxx.

fNtplReader

std::shared_ptr<ROOT::RNTupleReader> RNTupleIterator::fNtplReader

private

Definition at line 330 of file RNTupleBrowseProvider.cxx.

fParentName

std::string RNTupleIterator::fParentName

private

Definition at line 333 of file RNTupleBrowseProvider.cxx.

fProvidedFieldIds

std::vector<ROOT::DescriptorId_t> RNTupleIterator::fProvidedFieldIds

private

Definition at line 331 of file RNTupleBrowseProvider.cxx.

fTotalItems

int RNTupleIterator::fTotalItems {0}

private

Definition at line 337 of file RNTupleBrowseProvider.cxx.