ROOT::Experimental::RFieldBase::RColumnRepresentations Class Reference

Some fields have multiple possible column representations, e.g.

with or without split encoding. All column representations supported for writing also need to be supported for reading. In addition, fields can support extra column representations for reading only, e.g. a 64bit integer reading from a 32bit column. The defined column representations must be supported by corresponding column packing/unpacking implementations, i.e. for the example above, the unpacking of 32bit ints to 64bit pages must be implemented in RColumnElement.hxx

Definition at line 167 of file RField.hxx.

Public Types
using	TypesList_t = std::vector< ColumnRepresentation_t >

Public Member Functions
	RColumnRepresentations ()
	RColumnRepresentations (const TypesList_t &serializationTypes, const TypesList_t &deserializationExtraTypes)
const TypesList_t &	GetDeserializationTypes () const
const ColumnRepresentation_t &	GetSerializationDefault () const
	The first column list from fSerializationTypes is the default for writing.
const TypesList_t &	GetSerializationTypes () const

Private Attributes
TypesList_t	fDeserializationTypes
	The union of the serialization types and the deserialization extra types.
TypesList_t	fSerializationTypes

#include <ROOT/RField.hxx>

Member Typedef Documentation

TypesList_t

using ROOT::Experimental::RFieldBase::RColumnRepresentations::TypesList_t = std::vector<ColumnRepresentation_t>

Definition at line 169 of file RField.hxx.

Constructor & Destructor Documentation

RColumnRepresentations() [1/2]

ROOT::Experimental::RFieldBase::RColumnRepresentations::RColumnRepresentations

(

)

Definition at line 371 of file RField.cxx.

RColumnRepresentations() [2/2]

ROOT::Experimental::RFieldBase::RColumnRepresentations::RColumnRepresentations	(	const TypesList_t &	serializationTypes,
		const TypesList_t &	deserializationExtraTypes
	)

Definition at line 378 of file RField.cxx.

Member Function Documentation

GetDeserializationTypes()

const TypesList_t & ROOT::Experimental::RFieldBase::RColumnRepresentations::GetDeserializationTypes ( ) const

inline

Definition at line 176 of file RField.hxx.

GetSerializationDefault()

const ColumnRepresentation_t & ROOT::Experimental::RFieldBase::RColumnRepresentations::GetSerializationDefault ( ) const

inline

The first column list from fSerializationTypes is the default for writing.

Definition at line 174 of file RField.hxx.

GetSerializationTypes()

const TypesList_t & ROOT::Experimental::RFieldBase::RColumnRepresentations::GetSerializationTypes ( ) const

inline

Definition at line 175 of file RField.hxx.

Member Data Documentation

fDeserializationTypes

TypesList_t ROOT::Experimental::RFieldBase::RColumnRepresentations::fDeserializationTypes

private

The union of the serialization types and the deserialization extra types.

Duplicates the serialization types list but the benenfit is that GetDeserializationTypes does not need to compile the list.

Definition at line 182 of file RField.hxx.

fSerializationTypes

TypesList_t ROOT::Experimental::RFieldBase::RColumnRepresentations::fSerializationTypes

private

Definition at line 179 of file RField.hxx.

Libraries for ROOT::Experimental::RFieldBase::RColumnRepresentations:

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

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