ROOT::RFieldToken Class Reference

A field token identifies a (sub)field in an entry.

It can be used for fast indexing in REntry's methods, e.g. REntry::BindValue(). The field token can also be created by the model.

Definition at line 40 of file RFieldToken.hxx.

Public Member Functions
	RFieldToken ()=default

Private Member Functions
	RFieldToken (std::size_t index, std::uint64_t schemaId)

Private Attributes
std::size_t	fIndex = 0
	The index of the field (top-level or registered subfield)
std::uint64_t	fSchemaId = std::uint64_t(-1)
	Safety check to prevent tokens from other models being used.

Friends
class	Experimental::Detail::RRawPtrWriteEntry
class	REntry
class	RNTupleModel

#include <ROOT/RFieldToken.hxx>

Constructor & Destructor Documentation

RFieldToken() [1/2]

ROOT::RFieldToken::RFieldToken ( std::size_t index, std::uint64_t schemaId )

inlineprivate

Definition at line 47 of file RFieldToken.hxx.

RFieldToken() [2/2]

ROOT::RFieldToken::RFieldToken ( )

default

Friends And Related Symbol Documentation

Experimental::Detail::RRawPtrWriteEntry

friend class Experimental::Detail::RRawPtrWriteEntry

friend

Definition at line 43 of file RFieldToken.hxx.

REntry

friend class REntry

friend

Definition at line 41 of file RFieldToken.hxx.

RNTupleModel

friend class RNTupleModel

friend

Definition at line 42 of file RFieldToken.hxx.

Member Data Documentation

fIndex

std::size_t ROOT::RFieldToken::fIndex = 0

private

The index of the field (top-level or registered subfield)

Definition at line 45 of file RFieldToken.hxx.

fSchemaId

std::uint64_t ROOT::RFieldToken::fSchemaId = std::uint64_t(-1)

private

Safety check to prevent tokens from other models being used.

Definition at line 46 of file RFieldToken.hxx.

Libraries for ROOT::RFieldToken:

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

• tree/ntuple/inc/ROOT/RFieldToken.hxx