RFieldsIterator Class Reference

Iterator over RNTuple fields.

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 153 of file RNTupleBrowseProvider.cxx.

Public Member Functions
	RFieldsIterator (std::shared_ptr< ROOT::Experimental::RNTupleReader > ntplReader, std::vector< ROOT::Experimental::DescriptorId_t > &&ids, const std::string &parent_name=""s)
virtual	~RFieldsIterator ()=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
int	fCounter {-1}
std::vector< ROOT::Experimental::DescriptorId_t >	fFieldIds
std::shared_ptr< ROOT::Experimental::RNTupleReader >	fNtplReader
std::string	fParentName

Inheritance diagram for RFieldsIterator:

Constructor & Destructor Documentation

RFieldsIterator()

RFieldsIterator::RFieldsIterator ( std::shared_ptr< ROOT::Experimental::RNTupleReader > ntplReader, std::vector< ROOT::Experimental::DescriptorId_t > && ids, const std::string & parent_name = ""s )

inline

Definition at line 161 of file RNTupleBrowseProvider.cxx.

~RFieldsIterator()

virtual RFieldsIterator::~RFieldsIterator ( )

virtualdefault

Member Function Documentation

CanItemHaveChilds()

bool RFieldsIterator::CanItemHaveChilds ( ) const

inlineoverridevirtual

Returns true if current item can have childs.

Reimplemented from ROOT::Browsable::RLevelIter.

Definition at line 179 of file RNTupleBrowseProvider.cxx.

CreateItem()

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

inlineoverridevirtual

Create element for the browser.

Reimplemented from ROOT::Browsable::RLevelIter.

Definition at line 186 of file RNTupleBrowseProvider.cxx.

GetElement()

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

inlineoverridevirtual

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

Implements ROOT::Browsable::RLevelIter.

Definition at line 204 of file RNTupleBrowseProvider.cxx.

GetItemName()

std::string RFieldsIterator::GetItemName ( ) const

inlineoverridevirtual

Returns current entry name

Implements ROOT::Browsable::RLevelIter.

Definition at line 174 of file RNTupleBrowseProvider.cxx.

Next()

bool RFieldsIterator::Next ( )

inlineoverridevirtual

Shift to next entry.

Implements ROOT::Browsable::RLevelIter.

Definition at line 169 of file RNTupleBrowseProvider.cxx.

Member Data Documentation

fCounter

int RFieldsIterator::fCounter {-1}

private

Definition at line 158 of file RNTupleBrowseProvider.cxx.

fFieldIds

std::vector<ROOT::Experimental::DescriptorId_t> RFieldsIterator::fFieldIds

private

Definition at line 156 of file RNTupleBrowseProvider.cxx.

fNtplReader

std::shared_ptr<ROOT::Experimental::RNTupleReader> RFieldsIterator::fNtplReader

private

Definition at line 155 of file RNTupleBrowseProvider.cxx.

fParentName

std::string RFieldsIterator::fParentName

private

Definition at line 157 of file RNTupleBrowseProvider.cxx.