ROOT::Experimental::REntry Class Reference

The REntry is a collection of values in an ntuple corresponding to a complete row in the data set.

The entry provides a memory-managed binder for a set of values. Through shared pointers, the memory locations that are associated to values are managed.

Definition at line 42 of file REntry.hxx.

Public Types
using	Iterator_t = decltype(fValues)::iterator

Public Member Functions
	REntry ()=default
	REntry (const REntry &other)=delete
	~REntry ()
void	AddValue (const Detail::RFieldValue &value)
	Adds a value whose storage is managed by the entry.
template<typename T , typename... ArgsT>
std::shared_ptr< T >	AddValue (RField< T > *field, ArgsT &&... args)
	While building the entry, adds a new value to the list and return the value's shared pointer.
Iterator_t	begin ()
void	CaptureValue (const Detail::RFieldValue &value)
	Adds a value whose storage is not managed by the entry.
Iterator_t	end ()
template<typename T >
T *	Get (std::string_view fieldName)
Detail::RFieldValue	GetValue (std::string_view fieldName)
REntry &	operator= (const REntry &other)=delete

Private Attributes
std::vector< std::size_t >	fManagedValues
	Points into fValues and indicates the values that are owned by the entry and need to be destructed.
std::vector< std::shared_ptr< void > >	fValuePtrs
	The objects involed in serialization and deserialization might be used long after the entry is gone: hence the shared pointer.
std::vector< Detail::RFieldValue >	fValues

#include <ROOT/REntry.hxx>

Member Typedef Documentation

Iterator_t

using ROOT::Experimental::REntry::Iterator_t = decltype(fValues)::iterator

Definition at line 51 of file REntry.hxx.

Constructor & Destructor Documentation

REntry() [1/2]

ROOT::Experimental::REntry::REntry ( )

default

REntry() [2/2]

ROOT::Experimental::REntry::REntry ( const REntry &  other )

delete

~REntry()

ROOT::Experimental::REntry::~REntry

(

)

Definition at line 19 of file REntry.cxx.

Member Function Documentation

AddValue() [1/2]

void ROOT::Experimental::REntry::AddValue

(

const Detail::RFieldValue &

value

)

Adds a value whose storage is managed by the entry.

Definition at line 26 of file REntry.cxx.

AddValue() [2/2]

template<typename T , typename... ArgsT>

std::shared_ptr< T > ROOT::Experimental::REntry::AddValue ( RField< T > *  field, ArgsT &&...  args  )

inline

While building the entry, adds a new value to the list and return the value's shared pointer.

Definition at line 66 of file REntry.hxx.

begin()

Iterator_t ROOT::Experimental::REntry::begin ( )

inline

Definition at line 92 of file REntry.hxx.

CaptureValue()

void ROOT::Experimental::REntry::CaptureValue

(

const Detail::RFieldValue &

value

)

Adds a value whose storage is not managed by the entry.

Definition at line 32 of file REntry.cxx.

end()

Iterator_t ROOT::Experimental::REntry::end ( )

inline

Definition at line 93 of file REntry.hxx.

Get()

template<typename T >

T * ROOT::Experimental::REntry::Get ( std::string_view  fieldName )

inline

Definition at line 82 of file REntry.hxx.

GetValue()

Detail::RFieldValue ROOT::Experimental::REntry::GetValue ( std::string_view  fieldName )

inline

Definition at line 73 of file REntry.hxx.

operator=()

REntry & ROOT::Experimental::REntry::operator= ( const REntry &  other )

delete

Member Data Documentation

fManagedValues

std::vector<std::size_t> ROOT::Experimental::REntry::fManagedValues

private

Points into fValues and indicates the values that are owned by the entry and need to be destructed.

Definition at line 48 of file REntry.hxx.

fValuePtrs

std::vector<std::shared_ptr<void> > ROOT::Experimental::REntry::fValuePtrs

private

The objects involed in serialization and deserialization might be used long after the entry is gone: hence the shared pointer.

Definition at line 46 of file REntry.hxx.

fValues

std::vector<Detail::RFieldValue> ROOT::Experimental::REntry::fValues

private

Definition at line 43 of file REntry.hxx.

Libraries for ROOT::Experimental::REntry:

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

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