Processor specializiation for processing a single RNTuple.

Definition at line 284 of file RNTupleProcessor.hxx.

Public Member Functions
void	LoadEntry ()
	Fill the entry with values belonging to the current entry number.

Public Member Functions inherited from ROOT::Experimental::RNTupleProcessor
	RNTupleProcessor (const RNTupleProcessor &)=delete

	RNTupleProcessor (RNTupleProcessor &&)=delete

virtual	~RNTupleProcessor ()=default

RIterator	begin ()

RIterator	end ()

std::size_t	GetCurrentNTupleNumber () const
	Get the index to the RNTuple currently being processed, according to the sources specified upon creation.

const REntry &	GetEntry () const
	Returns a reference to the entry used by the processor.

NTupleSize_t	GetLocalEntryNumber () const
	Get the entry number local to the RNTuple that is currently being processed.

NTupleSize_t	GetNEntriesProcessed () const
	Get the total number of entries processed so far.

RNTupleProcessor &	operator= (const RNTupleProcessor &)=delete

RNTupleProcessor &	operator= (RNTupleProcessor &&)=delete

Private Member Functions
	RNTupleSingleProcessor (const RNTupleOpenSpec &ntuple, RNTupleModel &model)
	Constructs a new RNTupleProcessor for processing a single RNTuple.

NTupleSize_t	Advance () final
	Advance the processor to the next available entry.

Friends
class	RNTupleProcessor

Additional Inherited Members
Static Public Member Functions inherited from ROOT::Experimental::RNTupleProcessor
static std::unique_ptr< RNTupleProcessor >	Create (const RNTupleOpenSpec &ntuple)

static std::unique_ptr< RNTupleProcessor >	Create (const RNTupleOpenSpec &ntuple, RNTupleModel &model)

static std::unique_ptr< RNTupleProcessor >	CreateChain (const std::vector< RNTupleOpenSpec > &ntuples, std::unique_ptr< RNTupleModel > model=nullptr)
	Create a new RNTuple processor chain for vertical concatenation of RNTuples.

static std::unique_ptr< RNTupleProcessor >	CreateJoin (const std::vector< RNTupleOpenSpec > &ntuples, const std::vector< std::string > &joinFields, std::vector< std::unique_ptr< RNTupleModel > > models={})
	Create a new RNTuple processor for horizontallly concatenated RNTuples.

Protected Member Functions inherited from ROOT::Experimental::RNTupleProcessor
	RNTupleProcessor (const std::vector< RNTupleOpenSpec > &ntuples)

void	ConnectField (RFieldContext &fieldContext, Internal::RPageSource &pageSource, REntry &entry)
	Creates and connects a concrete field to the current page source, based on its proto field.

void	SetLocalEntryNumber (NTupleSize_t entryNumber)
	Set the local (i.e.

Protected Attributes inherited from ROOT::Experimental::RNTupleProcessor
std::size_t	fCurrentNTupleNumber

std::unique_ptr< REntry >	fEntry

std::unordered_map< std::string, RFieldContext >	fFieldContexts

NTupleSize_t	fLocalEntryNumber

NTupleSize_t	fNEntriesProcessed

std::vector< RNTupleOpenSpec >	fNTuples

std::unique_ptr< Internal::RPageSource >	fPageSource

#include <ROOT/RNTupleProcessor.hxx>

Inheritance diagram for ROOT::Experimental::RNTupleSingleProcessor:

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Constructor & Destructor Documentation

◆ RNTupleSingleProcessor()

ROOT::Experimental::RNTupleSingleProcessor::RNTupleSingleProcessor	(	const RNTupleOpenSpec &	ntuple,
		RNTupleModel &	model
	)

private

Constructs a new RNTupleProcessor for processing a single RNTuple.

Parameters

[in]	ntuple	The source specification (name and storage location) for the RNTuple to process.
[in]	model	The model that specifies which fields should be read by the processor.

Definition at line 122 of file RNTupleProcessor.cxx.

Member Function Documentation

◆ Advance()

ROOT::Experimental::NTupleSize_t ROOT::Experimental::RNTupleSingleProcessor::Advance ( )

finalprivatevirtual

Advance the processor to the next available entry.

Returns: The number of the entry loaded after advancing, or kInvalidNTupleIndex if there was no entry to advance to.

Checks if the end of the currently connected RNTuple is reached. If this is the case, either the next RNTuple is connected or the iterator has reached the end.

Implements ROOT::Experimental::RNTupleProcessor.

Definition at line 149 of file RNTupleProcessor.cxx.