ROOT::Detail::RDF::RMergeableCount Class Reference

Specialization of RMergeableValue for the Count action.

Definition at line 194 of file RMergeableValue.hxx.

Public Member Functions
	RMergeableCount ()=default
	Default constructor.
	RMergeableCount (const RMergeableCount &)=delete
	RMergeableCount (RMergeableCount &&)=delete
	RMergeableCount (ULong64_t value)
	Constructor that initializes data members.
const ULong64_t &	GetValue () const
	Retrieve the result wrapped by this mergeable.
RMergeableCount &	operator= (const RMergeableCount &)=delete
RMergeableCount &	operator= (RMergeableCount &&)=delete

Protected Attributes
ULong64_t	fValue

Private Member Functions
void	Merge (const RMergeableValue< ULong64_t > &other) final
	Aggregate the information contained in another RMergeableValue into this.

#include <ROOT/RDF/RMergeableValue.hxx>

Inheritance diagram for ROOT::Detail::RDF::RMergeableCount:

Constructor & Destructor Documentation

RMergeableCount() [1/4]

ROOT::Detail::RDF::RMergeableCount::RMergeableCount ( ULong64_t value )

inline

Constructor that initializes data members.

Parameters

[in]

value

The action result.

Definition at line 224 of file RMergeableValue.hxx.

RMergeableCount() [2/4]

ROOT::Detail::RDF::RMergeableCount::RMergeableCount ( )

default

Default constructor.

Needed to allow serialization of ROOT objects. See [TBufferFile::WriteObjectClass] (classTBufferFile.html::a209078a4cb58373b627390790bf0c9c1)

RMergeableCount() [3/4]

ROOT::Detail::RDF::RMergeableCount::RMergeableCount ( const RMergeableCount & )

delete

RMergeableCount() [4/4]

ROOT::Detail::RDF::RMergeableCount::RMergeableCount ( RMergeableCount && )

delete

Member Function Documentation

GetValue()

const ULong64_t & ROOT::Detail::RDF::RMergeableValue< ULong64_t >::GetValue ( ) const

inlineinherited

Retrieve the result wrapped by this mergeable.

Definition at line 185 of file RMergeableValue.hxx.

Merge()

void ROOT::Detail::RDF::RMergeableCount::Merge ( const RMergeableValue< ULong64_t > & other )

inlinefinalprivatevirtual

Aggregate the information contained in another RMergeableValue into this.

Parameters

[in]

other

Another RMergeableValue object.

Exceptions

std::invalid_argument

If the cast of the other object to the same type as this one fails.

The other RMergeableValue object is cast to the same type as this object. This is needed to make sure that only results of the same type of action are merged together. Then the two results are added together to update the value held by the current object.

Note

All the Merge methods in the RMergeableValue family are private. To merge multiple RMergeableValue objects please use [MergeValues] (namespaceROOT_1_1Detail_1_1RDF.html::af16fefbe2d120983123ddf8a1e137277).

Implements ROOT::Detail::RDF::RMergeableValue< ULong64_t >.

Definition at line 210 of file RMergeableValue.hxx.

operator=() [1/2]

RMergeableCount & ROOT::Detail::RDF::RMergeableCount::operator= ( const RMergeableCount & )

delete

operator=() [2/2]

RMergeableCount & ROOT::Detail::RDF::RMergeableCount::operator= ( RMergeableCount && )

delete

Member Data Documentation

fValue

ULong64_t ROOT::Detail::RDF::RMergeableValue< ULong64_t >::fValue

protectedinherited

Definition at line 164 of file RMergeableValue.hxx.

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

• tree/dataframe/inc/ROOT/RDF/RMergeableValue.hxx