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ROOT::Experimental::RNTupleDescriptor::RHeaderExtension Class Reference
NTuple-related classes

Summarizes information about fields and the corresponding columns that were added after the header has been serialized.

Definition at line 464 of file RNTupleDescriptor.hxx.

Public Member Functions

std::size_t GetNFields () const
 
std::size_t GetNLogicalColumns () const
 
std::size_t GetNPhysicalColumns () const
 
std::vector< DescriptorId_t > GetTopLevelFields (const RNTupleDescriptor &desc) const
 Return a vector containing the IDs of the top-level fields defined in the extension header.
 

Private Member Functions

void AddColumn (bool isAliasColumn)
 
void AddFieldId (DescriptorId_t id)
 

Private Attributes

std::vector< DescriptorId_t > fFields
 Contains the list of field IDs that are part of the header extension; the corresponding columns are available via GetColumnIterable().
 
std::uint64_t fNLogicalColumns = 0
 Number of logical and physical columns; updated by the descriptor builder when columns are added.
 
std::uint64_t fNPhysicalColumns = 0
 

Friends

class Internal::RNTupleDescriptorBuilder
 

#include <ROOT/RNTupleDescriptor.hxx>

Member Function Documentation

◆ AddColumn()

void ROOT::Experimental::RNTupleDescriptor::RHeaderExtension::AddColumn ( bool  isAliasColumn)
inlineprivate

Definition at line 476 of file RNTupleDescriptor.hxx.

◆ AddFieldId()

void ROOT::Experimental::RNTupleDescriptor::RHeaderExtension::AddFieldId ( DescriptorId_t  id)
inlineprivate

Definition at line 475 of file RNTupleDescriptor.hxx.

◆ GetNFields()

std::size_t ROOT::Experimental::RNTupleDescriptor::RHeaderExtension::GetNFields ( ) const
inline

Definition at line 484 of file RNTupleDescriptor.hxx.

◆ GetNLogicalColumns()

std::size_t ROOT::Experimental::RNTupleDescriptor::RHeaderExtension::GetNLogicalColumns ( ) const
inline

Definition at line 485 of file RNTupleDescriptor.hxx.

◆ GetNPhysicalColumns()

std::size_t ROOT::Experimental::RNTupleDescriptor::RHeaderExtension::GetNPhysicalColumns ( ) const
inline

Definition at line 486 of file RNTupleDescriptor.hxx.

◆ GetTopLevelFields()

std::vector< ROOT::Experimental::DescriptorId_t > ROOT::Experimental::RNTupleDescriptor::RHeaderExtension::GetTopLevelFields ( const RNTupleDescriptor &  desc) const

Return a vector containing the IDs of the top-level fields defined in the extension header.

Definition at line 352 of file RNTupleDescriptor.cxx.

Friends And Related Symbol Documentation

◆ Internal::RNTupleDescriptorBuilder

friend class Internal::RNTupleDescriptorBuilder
friend

Definition at line 465 of file RNTupleDescriptor.hxx.

Member Data Documentation

◆ fFields

std::vector<DescriptorId_t> ROOT::Experimental::RNTupleDescriptor::RHeaderExtension::fFields
private

Contains the list of field IDs that are part of the header extension; the corresponding columns are available via GetColumnIterable().

Definition at line 470 of file RNTupleDescriptor.hxx.

◆ fNLogicalColumns

std::uint64_t ROOT::Experimental::RNTupleDescriptor::RHeaderExtension::fNLogicalColumns = 0
private

Number of logical and physical columns; updated by the descriptor builder when columns are added.

Definition at line 472 of file RNTupleDescriptor.hxx.

◆ fNPhysicalColumns

std::uint64_t ROOT::Experimental::RNTupleDescriptor::RHeaderExtension::fNPhysicalColumns = 0
private

Definition at line 473 of file RNTupleDescriptor.hxx.

Libraries for ROOT::Experimental::RNTupleDescriptor::RHeaderExtension:
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The documentation for this class was generated from the following files: