Specialization of RMergeableValue for the Count action.

Definition at line 176 of file RMergeableValue.hxx.

Public Member Functions
	RMergeableCount ()=default
	Default constructor.

	RMergeableCount (const RMergeableCount &)=delete

	RMergeableCount (RMergeableCount &&)=default

	RMergeableCount (ULong64_t value)
	Constructor that initializes data members.

Public Member Functions inherited from ROOT::Detail::RDF::RMergeableValue< ULong64_t >
	RMergeableValue ()=default
	Default constructor.

	RMergeableValue (const ULong64_t &value)
	Constructor taking the action result by const reference.

const ULong64_t &	GetValue () const
	Retrieve the result wrapped by this mergeable.

Public Member Functions inherited from ROOT::Detail::RDF::RMergeableValueBase
	RMergeableValueBase ()=default
	Default constructor.

virtual	~RMergeableValueBase ()=default

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

Additional Inherited Members
Protected Attributes inherited from ROOT::Detail::RDF::RMergeableValue< ULong64_t >
ULong64_t	fValue

#include <ROOT/RDF/RMergeableValue.hxx>

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

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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 206 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 ( RMergeableCount && )

default

◆ RMergeableCount() [4/4]

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

delete

Member Function Documentation

◆ 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 192 of file RMergeableValue.hxx.

Libraries for ROOT::Detail::RDF::RMergeableCount:

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

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

Public Member Functions

Private Member Functions