ROOT::Experimental::RColumnDescriptorBuilder Class Reference

A helper class for piece-wise construction of an RColumnDescriptor.

Dangling column descriptors can become actual descriptors when added to an RNTupleDescriptorBuilder instance and then linked to their fields.

Definition at line 807 of file RNTupleDescriptor.hxx.

Public Member Functions
	RColumnDescriptorBuilder ()=default
	Make an empty column descriptor builder.
RColumnDescriptorBuilder &	FieldId (DescriptorId_t fieldId)
RColumnDescriptorBuilder &	FirstElementIndex (std::uint64_t firstElementIdx)
DescriptorId_t	GetFieldId () const
RColumnDescriptorBuilder &	Index (std::uint32_t index)
RColumnDescriptorBuilder &	LogicalColumnId (DescriptorId_t logicalColumnId)
RResult< RColumnDescriptor >	MakeDescriptor () const
	Attempt to make a column descriptor.
RColumnDescriptorBuilder &	Model (const RColumnModel &model)
RColumnDescriptorBuilder &	PhysicalColumnId (DescriptorId_t physicalColumnId)

Private Attributes
RColumnDescriptor	fColumn = RColumnDescriptor()

#include <ROOT/RNTupleDescriptor.hxx>

Constructor & Destructor Documentation

RColumnDescriptorBuilder()

ROOT::Experimental::RColumnDescriptorBuilder::RColumnDescriptorBuilder ( )

default

Make an empty column descriptor builder.

Member Function Documentation

FieldId()

RColumnDescriptorBuilder & ROOT::Experimental::RColumnDescriptorBuilder::FieldId ( DescriptorId_t  fieldId )

inline

Definition at line 828 of file RNTupleDescriptor.hxx.

FirstElementIndex()

RColumnDescriptorBuilder & ROOT::Experimental::RColumnDescriptorBuilder::FirstElementIndex ( std::uint64_t  firstElementIdx )

inline

Definition at line 836 of file RNTupleDescriptor.hxx.

GetFieldId()

DescriptorId_t ROOT::Experimental::RColumnDescriptorBuilder::GetFieldId ( ) const

inline

Definition at line 841 of file RNTupleDescriptor.hxx.

Index()

RColumnDescriptorBuilder & ROOT::Experimental::RColumnDescriptorBuilder::Index ( std::uint32_t  index )

inline

Definition at line 832 of file RNTupleDescriptor.hxx.

LogicalColumnId()

RColumnDescriptorBuilder & ROOT::Experimental::RColumnDescriptorBuilder::LogicalColumnId ( DescriptorId_t  logicalColumnId )

inline

Definition at line 814 of file RNTupleDescriptor.hxx.

MakeDescriptor()

ROOT::Experimental::RResult< ROOT::Experimental::RColumnDescriptor > ROOT::Experimental::RColumnDescriptorBuilder::MakeDescriptor

(

)

const

Attempt to make a column descriptor.

This may fail if the column was not given enough information to make a proper descriptor.

Definition at line 664 of file RNTupleDescriptor.cxx.

Model()

RColumnDescriptorBuilder & ROOT::Experimental::RColumnDescriptorBuilder::Model ( const RColumnModel &  model )

inline

Definition at line 824 of file RNTupleDescriptor.hxx.

PhysicalColumnId()

RColumnDescriptorBuilder & ROOT::Experimental::RColumnDescriptorBuilder::PhysicalColumnId ( DescriptorId_t  physicalColumnId )

inline

Definition at line 819 of file RNTupleDescriptor.hxx.

Member Data Documentation

fColumn

RColumnDescriptor ROOT::Experimental::RColumnDescriptorBuilder::fColumn = RColumnDescriptor()

private

Definition at line 809 of file RNTupleDescriptor.hxx.

Libraries for ROOT::Experimental::RColumnDescriptorBuilder:

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

• tree/ntuple/v7/inc/ROOT/RNTupleDescriptor.hxx
• tree/ntuple/v7/src/RNTupleDescriptor.cxx