Definition at line 601 of file RField.hxx.

Public Member Functions
	RField (RField &&other)=default

	RField (std::string_view name)

	~RField ()=default

Detail::RFieldValue	CaptureValue (void *where) final
	Creates a value from a memory location with an already constructed object. More...

RFieldBase *	Clone (std::string_view newName) final

void	DoGenerateColumns () final
	Creates the backing columns corresponsing to the field type and name. More...

ROOT::Experimental::Detail::RFieldValue	GenerateValue (void *where) final
	Generates a tree value in a given location of size at least GetValueSize(). More...

template<typename... ArgsT>
ROOT::Experimental::Detail::RFieldValue	GenerateValue (void *where, ArgsT &&... args)

size_t	GetValueSize () const final
	The number of bytes taken by a value of the appropriate type. More...

double *	Map (const RClusterIndex &clusterIndex)

double *	Map (NTupleSize_t globalIndex)

RField &	operator= (RField &&other)=default

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

	RFieldBase (RFieldBase &&)=default

	RFieldBase (std::string_view name, std::string_view type, ENTupleStructure structure, bool isSimple, std::size_t nRepetitions=0)
	The constructor creates the underlying column objects and connects them to either a sink or a source. More...

virtual	~RFieldBase ()

virtual void	AcceptVisitor (RNTupleVisitor &visitor, int level) const

void	Append (const RFieldValue &value)
	Write the given value into columns. The value object has to be of the same type as the field. More...

void	Attach (std::unique_ptr< Detail::RFieldBase > child)

RIterator	begin ()

virtual RFieldValue	CaptureValue (void *where)=0
	Creates a value from a memory location with an already constructed object. More...

virtual RFieldBase *	Clone (std::string_view newName)=0

virtual void	CommitCluster ()
	Perform housekeeping tasks for global to cluster-local index translation. More...

virtual void	DestroyValue (const RFieldValue &value, bool dtorOnly=false)
	Releases the resources acquired during GenerateValue (memory and constructor) This implementation works for simple types but needs to be overwritten for complex ones. More...

RIterator	end ()

void	Flush () const
	Ensure that all received items are written from page buffers to the storage. More...

RFieldValue	GenerateValue ()
	Generates a tree value of the field type and allocates new initialized memory according to the type. More...

virtual RFieldValue	GenerateValue (void *where)=0
	Generates a tree value in a given location of size at least GetValueSize(). More...

virtual size_t	GetAlignment () const
	For many types, the alignment requirement is equal to the size; otherwise override. More...

virtual RNTupleVersion	GetFieldVersion () const
	Indicates an evolution of the mapping scheme from C++ type to columns. More...

RLevelInfo	GetLevelInfo () const

std::string	GetName () const

std::size_t	GetNRepetitions () const

const RFieldBase *	GetParent () const

ENTupleStructure	GetStructure () const

std::string	GetType () const

virtual RNTupleVersion	GetTypeVersion () const
	Indicates an evolution of the C++ type itself. More...

virtual size_t	GetValueSize () const =0
	The number of bytes taken by a value of the appropriate type. More...

bool	IsSimple () const

RFieldBase &	operator= (const RFieldBase &)=delete

RFieldBase &	operator= (RFieldBase &&)=default

void	Read (const RClusterIndex &clusterIndex, RFieldValue *value)

void	Read (NTupleSize_t globalIndex, RFieldValue *value)
	Populate a single value with data from the tree, which needs to be of the fitting type. More...

void	SetOrder (int o)

virtual void	TraverseVisitor (RNTupleVisitor &visitor, int level=0) const
	Used for the visitor design pattern, see for example RNTupleReader::Print() More...

Static Public Member Functions
static std::string	TypeName ()

Static Public Member Functions inherited from ROOT::Experimental::Detail::RFieldBase
static RFieldBase *	Create (const std::string &fieldName, const std::string &typeName)
	Factory method to resurrect a field from the stored on-disk type information. More...

Additional Inherited Members
Protected Member Functions inherited from ROOT::Experimental::Detail::RFieldBase
virtual void	DoAppend (const RFieldValue &value)
	Operations on values of complex types, e.g. More...

virtual void	DoGenerateColumns ()=0
	Creates the backing columns corresponsing to the field type and name. More...

virtual void	DoReadGlobal (NTupleSize_t globalIndex, RFieldValue *value)

virtual void	DoReadInCluster (const RClusterIndex &clusterIndex, RFieldValue *value)

Protected Attributes inherited from ROOT::Experimental::Detail::RFieldBase
std::vector< std::unique_ptr< RColumn > >	fColumns
	The columns are connected either to a sink or to a source (not to both); they are owned by the field. More...

RFieldBase *	fParent
	Sub fields point to their mother field. More...

RColumn *	fPrincipalColumn
	Points into fColumns. More...

std::vector< std::unique_ptr< RFieldBase > >	fSubFields
	Collections and classes own sub fields. More...

#include <ROOT/RField.hxx>

Inheritance diagram for ROOT::Experimental::RField< double >:

[legend]

Constructor & Destructor Documentation

◆ RField() [1/2]

ROOT::Experimental::RField< double >::RField ( std::string_view name )

inlineexplicit

Definition at line 604 of file RField.hxx.

◆ RField() [2/2]

ROOT::Experimental::RField< double >::RField ( RField< double > && other )

default

◆ ~RField()

ROOT::Experimental::RField< double >::~RField ( )

default

Member Function Documentation

◆ CaptureValue()

Detail::RFieldValue ROOT::Experimental::RField< double >::CaptureValue ( void * where )

inlinefinalvirtual

Creates a value from a memory location with an already constructed object.

Implements ROOT::Experimental::Detail::RFieldBase.

Definition at line 629 of file RField.hxx.

◆ Clone()

RFieldBase * ROOT::Experimental::RField< double >::Clone ( std::string_view newName )

inlinefinalvirtual

Implements ROOT::Experimental::Detail::RFieldBase.

Definition at line 609 of file RField.hxx.

◆ DoGenerateColumns()

void ROOT::Experimental::RField< double >::DoGenerateColumns ( )

finalvirtual

Creates the backing columns corresponsing to the field type and name.

Implements ROOT::Experimental::Detail::RFieldBase.

Definition at line 343 of file RField.cxx.

◆ GenerateValue() [1/2]

ROOT::Experimental::Detail::RFieldValue ROOT::Experimental::RField< double >::GenerateValue ( void * where )

inlinefinalvirtual

Generates a tree value in a given location of size at least GetValueSize().

Assumes that where has been allocated by malloc().

Implements ROOT::Experimental::Detail::RFieldBase.

Definition at line 628 of file RField.hxx.

◆ GenerateValue() [2/2]

template<typename... ArgsT>

ROOT::Experimental::Detail::RFieldValue ROOT::Experimental::RField< double >::GenerateValue	(	void *	where,
		ArgsT &&...	args
	)

inline

Definition at line 622 of file RField.hxx.

◆ GetValueSize()

size_t ROOT::Experimental::RField< double >::GetValueSize ( ) const

inlinefinalvirtual

The number of bytes taken by a value of the appropriate type.

Implements ROOT::Experimental::Detail::RFieldBase.

Definition at line 633 of file RField.hxx.

◆ Map() [1/2]

double * ROOT::Experimental::RField< double >::Map ( const RClusterIndex & clusterIndex )

inline

Definition at line 616 of file RField.hxx.

◆ Map() [2/2]

double * ROOT::Experimental::RField< double >::Map ( NTupleSize_t globalIndex )

inline

Definition at line 613 of file RField.hxx.

◆ operator=()

RField & ROOT::Experimental::RField< double >::operator= ( RField< double > && other )

default

◆ TypeName()

static std::string ROOT::Experimental::RField< double >::TypeName ( )

inlinestatic

Definition at line 603 of file RField.hxx.

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

tree/ntuple/v7/inc/ROOT/RField.hxx
tree/ntuple/v7/src/RField.cxx

Public Member Functions

Static Public Member Functions

Additional Inherited Members

Constructor & Destructor Documentation

◆ RField() [1/2]

◆ RField() [2/2]

◆ ~RField()

Member Function Documentation

◆ CaptureValue()

◆ Clone()

◆ DoGenerateColumns()

◆ GenerateValue() [1/2]

◆ GenerateValue() [2/2]

◆ GetValueSize()

◆ Map() [1/2]

◆ Map() [2/2]

◆ operator=()

◆ TypeName()