ROOT::Experimental::RClusterDescriptor::RPageRange Struct Reference

Records the parition of data into pages for a particular column in a particular cluster.

Definition at line 240 of file RNTupleDescriptor.hxx.

Classes
struct	RPageInfo
	We do not need to store the element size / uncompressed page size because we know to which column the page belongs. More...
struct	RPageInfoExtended

Public Member Functions
	RPageRange ()=default
	RPageRange (const RPageRange &other)=delete
	RPageRange (RPageRange &&other)=default
RPageRange	Clone () const
std::size_t	ExtendToFitColumnRange (const RColumnRange &columnRange, const Detail::RColumnElementBase &element, std::size_t pageSize)
	Extend this RPageRange to fit the given RColumnRange, i.e.
RPageInfoExtended	Find (RClusterSize::ValueType idxInCluster) const
	Find the page in the RPageRange that contains the given element. The element must exist.
RPageRange &	operator= (const RPageRange &other)=delete
RPageRange &	operator= (RPageRange &&other)=default
bool	operator== (const RPageRange &other) const

Public Attributes
std::vector< RPageInfo >	fPageInfos
DescriptorId_t	fPhysicalColumnId = kInvalidDescriptorId

#include <ROOT/RNTupleDescriptor.hxx>

Constructor & Destructor Documentation

RPageRange() [1/3]

ROOT::Experimental::RClusterDescriptor::RPageRange::RPageRange ( )

default

RPageRange() [2/3]

ROOT::Experimental::RClusterDescriptor::RPageRange::RPageRange ( const RPageRange &  other )

delete

RPageRange() [3/3]

ROOT::Experimental::RClusterDescriptor::RPageRange::RPageRange ( RPageRange &&  other )

default

Member Function Documentation

Clone()

RPageRange ROOT::Experimental::RClusterDescriptor::RPageRange::Clone ( ) const

inline

Definition at line 270 of file RNTupleDescriptor.hxx.

ExtendToFitColumnRange()

std::size_t ROOT::Experimental::RClusterDescriptor::RPageRange::ExtendToFitColumnRange	(	const RColumnRange &	columnRange,
		const Detail::RColumnElementBase &	element,
		std::size_t	pageSize
	)

Extend this RPageRange to fit the given RColumnRange, i.e.

prepend as many synthetic RPageInfos as needed to cover the range in columnRange. RPageInfos are constructed to contain as many elements of type element given a page size limit of pageSize (in bytes); the locator for the referenced pages is kTypePageZero. This function is used to make up RPageRanges for clusters that contain deferred columns.

Returns

The number of column elements covered by the synthesized RPageInfos

Definition at line 136 of file RNTupleDescriptor.cxx.

Find()

ROOT::Experimental::RClusterDescriptor::RPageRange::RPageInfoExtended ROOT::Experimental::RClusterDescriptor::RPageRange::Find

(

RClusterSize::ValueType

idxInCluster

)

const

Find the page in the RPageRange that contains the given element. The element must exist.

Definition at line 116 of file RNTupleDescriptor.cxx.

operator=() [1/2]

RPageRange & ROOT::Experimental::RClusterDescriptor::RPageRange::operator= ( const RPageRange &  other )

delete

operator=() [2/2]

RPageRange & ROOT::Experimental::RClusterDescriptor::RPageRange::operator= ( RPageRange &&  other )

default

operator==()

bool ROOT::Experimental::RClusterDescriptor::RPageRange::operator== ( const RPageRange &  other ) const

inline

Definition at line 283 of file RNTupleDescriptor.hxx.

Member Data Documentation

fPageInfos

std::vector<RPageInfo> ROOT::Experimental::RClusterDescriptor::RPageRange::fPageInfos

Definition at line 281 of file RNTupleDescriptor.hxx.

fPhysicalColumnId

DescriptorId_t ROOT::Experimental::RClusterDescriptor::RPageRange::fPhysicalColumnId = kInvalidDescriptorId

Definition at line 280 of file RNTupleDescriptor.hxx.

Collaboration diagram for ROOT::Experimental::RClusterDescriptor::RPageRange:

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

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