ROOT::Experimental::Detail::RColumnElementBase Class Reference

Definition at line 220 of file RColumnElement.hxx.

Public Member Functions
	RColumnElementBase ()
	RColumnElementBase (const RColumnElementBase &elemArray, std::size_t at)
	RColumnElementBase (const RColumnElementBase &other)=default
	RColumnElementBase (RColumnElementBase &&other)=default
	RColumnElementBase (void *rawContent, std::size_t size)
virtual	~RColumnElementBase ()=default
virtual std::size_t	GetBitsOnStorage () const
std::size_t	GetPackedSize (std::size_t nElements) const
void *	GetRawContent () const
std::size_t	GetSize () const
virtual bool	IsMappable () const
	Derived, typed classes tell whether the on-storage layout is bitwise identical to the memory layout.
RColumnElementBase &	operator= (const RColumnElementBase &other)=delete
RColumnElementBase &	operator= (RColumnElementBase &&other)=default
virtual void	Pack (void *destination, void *source, std::size_t count) const
	If the on-storage layout and the in-memory layout differ, packing creates an on-disk page from an in-memory page.
void	ReadFrom (void *source, std::size_t count)
	Set the column element or an array of elements from the memory location source.
virtual void	Unpack (void *destination, void *source, std::size_t count) const
	If the on-storage layout and the in-memory layout differ, unpacking creates a memory page from an on-storage page.
void	WriteTo (void *destination, std::size_t count) const
	Write one or multiple column elements into destination.

Static Public Member Functions
template<typename CppT = void>
static std::unique_ptr< RColumnElementBase >	Generate (EColumnType type)
	If CppT == void, use the default C++ type for the given column type.
template<>
std::unique_ptr< RColumnElementBase >	Generate (EColumnType type)
template<>
std::unique_ptr< ROOT::Experimental::Detail::RColumnElementBase >	Generate (EColumnType type)
static std::size_t	GetBitsOnStorage (EColumnType type)
static std::string	GetTypeName (EColumnType type)

Protected Attributes
void *	fRawContent
	Points to valid C++ data, either a single value or an array of values.
std::size_t	fSize
	Size of the C++ value pointed to by fRawContent (not necessarily equal to the on-disk element size)

#include <ROOT/RColumnElement.hxx>

Inheritance diagram for ROOT::Experimental::Detail::RColumnElementBase:

Constructor & Destructor Documentation

RColumnElementBase() [1/5]

ROOT::Experimental::Detail::RColumnElementBase::RColumnElementBase ( )

inline

Definition at line 228 of file RColumnElement.hxx.

RColumnElementBase() [2/5]

ROOT::Experimental::Detail::RColumnElementBase::RColumnElementBase ( void *  rawContent, std::size_t  size  )

inline

Definition at line 232 of file RColumnElement.hxx.

RColumnElementBase() [3/5]

ROOT::Experimental::Detail::RColumnElementBase::RColumnElementBase ( const RColumnElementBase &  elemArray, std::size_t  at  )

inline

Definition at line 234 of file RColumnElement.hxx.

RColumnElementBase() [4/5]

ROOT::Experimental::Detail::RColumnElementBase::RColumnElementBase ( const RColumnElementBase &  other )

default

RColumnElementBase() [5/5]

ROOT::Experimental::Detail::RColumnElementBase::RColumnElementBase ( RColumnElementBase &&  other )

default

~RColumnElementBase()

virtual ROOT::Experimental::Detail::RColumnElementBase::~RColumnElementBase ( )

virtualdefault

Member Function Documentation

Generate() [1/3]

template<typename CppT >

std::unique_ptr< RColumnElementBase > ROOT::Experimental::Detail::RColumnElementBase::Generate ( EColumnType  type )

static

If CppT == void, use the default C++ type for the given column type.

Definition at line 829 of file RColumnElement.hxx.

Generate() [2/3]

template<>

std::unique_ptr< RColumnElementBase > ROOT::Experimental::Detail::RColumnElementBase::Generate ( EColumnType  type )

static

Generate() [3/3]

template<>

std::unique_ptr< ROOT::Experimental::Detail::RColumnElementBase > ROOT::Experimental::Detail::RColumnElementBase::Generate ( EColumnType  type )

static

Definition at line 1 of file RColumnElement.cxx.

GetBitsOnStorage() [1/2]

virtual std::size_t ROOT::Experimental::Detail::RColumnElementBase::GetBitsOnStorage ( ) const

inlinevirtual

Reimplemented in ROOT::Experimental::Detail::RColumnElement< bool, EColumnType::kBit >, ROOT::Experimental::Detail::RColumnElement< char, EColumnType::kByte >, ROOT::Experimental::Detail::RColumnElement< char, EColumnType::kChar >, ROOT::Experimental::Detail::RColumnElement< float, EColumnType::kReal32 >, ROOT::Experimental::Detail::RColumnElement< float, EColumnType::kSplitReal32 >, ROOT::Experimental::Detail::RColumnElement< double, EColumnType::kReal64 >, ROOT::Experimental::Detail::RColumnElement< double, EColumnType::kSplitReal64 >, ROOT::Experimental::Detail::RColumnElement< ClusterSize_t, EColumnType::kIndex64 >, ROOT::Experimental::Detail::RColumnElement< ClusterSize_t, EColumnType::kIndex32 >, ROOT::Experimental::Detail::RColumnElement< ClusterSize_t, EColumnType::kSplitIndex64 >, ROOT::Experimental::Detail::RColumnElement< ClusterSize_t, EColumnType::kSplitIndex32 >, and ROOT::Experimental::Detail::RColumnElement< RColumnSwitch, EColumnType::kSwitch >.

Definition at line 262 of file RColumnElement.hxx.

GetBitsOnStorage() [2/2]

std::size_t ROOT::Experimental::Detail::RColumnElementBase::GetBitsOnStorage ( EColumnType  type )

static

Definition at line 61 of file RColumnElement.cxx.

GetPackedSize()

std::size_t ROOT::Experimental::Detail::RColumnElementBase::GetPackedSize ( std::size_t  nElements ) const

inline

Definition at line 278 of file RColumnElement.hxx.

GetRawContent()

void * ROOT::Experimental::Detail::RColumnElementBase::GetRawContent ( ) const

inline

Definition at line 276 of file RColumnElement.hxx.

GetSize()

std::size_t ROOT::Experimental::Detail::RColumnElementBase::GetSize ( ) const

inline

Definition at line 277 of file RColumnElement.hxx.

GetTypeName()

std::string ROOT::Experimental::Detail::RColumnElementBase::GetTypeName ( EColumnType  type )

static

Definition at line 88 of file RColumnElement.cxx.

IsMappable()

virtual bool ROOT::Experimental::Detail::RColumnElementBase::IsMappable ( ) const

inlinevirtual

Derived, typed classes tell whether the on-storage layout is bitwise identical to the memory layout.

Reimplemented in ROOT::Experimental::Detail::RColumnElement< bool, EColumnType::kBit >, ROOT::Experimental::Detail::RColumnElement< char, EColumnType::kByte >, ROOT::Experimental::Detail::RColumnElement< char, EColumnType::kChar >, ROOT::Experimental::Detail::RColumnElement< float, EColumnType::kReal32 >, ROOT::Experimental::Detail::RColumnElement< float, EColumnType::kSplitReal32 >, ROOT::Experimental::Detail::RColumnElement< double, EColumnType::kReal64 >, ROOT::Experimental::Detail::RColumnElement< double, EColumnType::kSplitReal64 >, ROOT::Experimental::Detail::RColumnElement< ClusterSize_t, EColumnType::kIndex64 >, ROOT::Experimental::Detail::RColumnElement< ClusterSize_t, EColumnType::kIndex32 >, ROOT::Experimental::Detail::RColumnElement< ClusterSize_t, EColumnType::kSplitIndex64 >, ROOT::Experimental::Detail::RColumnElement< ClusterSize_t, EColumnType::kSplitIndex32 >, and ROOT::Experimental::Detail::RColumnElement< RColumnSwitch, EColumnType::kSwitch >.

Definition at line 261 of file RColumnElement.hxx.

operator=() [1/2]

RColumnElementBase & ROOT::Experimental::Detail::RColumnElementBase::operator= ( const RColumnElementBase &  other )

delete

operator=() [2/2]

RColumnElementBase & ROOT::Experimental::Detail::RColumnElementBase::operator= ( RColumnElementBase &&  other )

default

Pack()

virtual void ROOT::Experimental::Detail::RColumnElementBase::Pack ( void *  destination, void *  source, std::size_t  count  ) const

inlinevirtual

If the on-storage layout and the in-memory layout differ, packing creates an on-disk page from an in-memory page.

Reimplemented in ROOT::Experimental::Detail::RColumnElementLE< CppT >, ROOT::Experimental::Detail::RColumnElementLE< double >, ROOT::Experimental::Detail::RColumnElementLE< float >, ROOT::Experimental::Detail::RColumnElementCastLE< CppT, NarrowT >, ROOT::Experimental::Detail::RColumnElementSplitLE< CppT, NarrowT >, ROOT::Experimental::Detail::RColumnElementSplitLE< double, double >, ROOT::Experimental::Detail::RColumnElementSplitLE< float, float >, ROOT::Experimental::Detail::RColumnElementDeltaSplitLE< CppT, NarrowT >, ROOT::Experimental::Detail::RColumnElement< bool, EColumnType::kBit >, and ROOT::Experimental::Detail::RColumnElement< RColumnSwitch, EColumnType::kSwitch >.

Definition at line 265 of file RColumnElement.hxx.

ReadFrom()

void ROOT::Experimental::Detail::RColumnElementBase::ReadFrom ( void *  source, std::size_t  count  )

inline

Set the column element or an array of elements from the memory location source.

Definition at line 256 of file RColumnElement.hxx.

Unpack()

virtual void ROOT::Experimental::Detail::RColumnElementBase::Unpack ( void *  destination, void *  source, std::size_t  count  ) const

inlinevirtual

If the on-storage layout and the in-memory layout differ, unpacking creates a memory page from an on-storage page.

Reimplemented in ROOT::Experimental::Detail::RColumnElementLE< CppT >, ROOT::Experimental::Detail::RColumnElementLE< double >, ROOT::Experimental::Detail::RColumnElementLE< float >, ROOT::Experimental::Detail::RColumnElementCastLE< CppT, NarrowT >, ROOT::Experimental::Detail::RColumnElementSplitLE< CppT, NarrowT >, ROOT::Experimental::Detail::RColumnElementSplitLE< double, double >, ROOT::Experimental::Detail::RColumnElementSplitLE< float, float >, ROOT::Experimental::Detail::RColumnElementDeltaSplitLE< CppT, NarrowT >, ROOT::Experimental::Detail::RColumnElement< bool, EColumnType::kBit >, and ROOT::Experimental::Detail::RColumnElement< RColumnSwitch, EColumnType::kSwitch >.

Definition at line 271 of file RColumnElement.hxx.

WriteTo()

void ROOT::Experimental::Detail::RColumnElementBase::WriteTo ( void *  destination, std::size_t  count  ) const

inline

Write one or multiple column elements into destination.

Definition at line 251 of file RColumnElement.hxx.

Member Data Documentation

fRawContent

void* ROOT::Experimental::Detail::RColumnElementBase::fRawContent

protected

Points to valid C++ data, either a single value or an array of values.

Definition at line 223 of file RColumnElement.hxx.

fSize

std::size_t ROOT::Experimental::Detail::RColumnElementBase::fSize

protected

Size of the C++ value pointed to by fRawContent (not necessarily equal to the on-disk element size)

Definition at line 225 of file RColumnElement.hxx.

Libraries for ROOT::Experimental::Detail::RColumnElementBase:

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

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