joda::query::NumberAggregator< T > Class Template Reference

#include <NumberAggregator.h>

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Public Member Functions
	NumberAggregator (const std::string &toPointer, std::vector< std::unique_ptr< IValueProvider >> &&params)
void	merge (IAggregator *other) override
RJValue	terminate (RJMemoryPoolAlloc &alloc) override
std::unique_ptr< IAggregator >	duplicate () const override
void	accumulate (const RapidJsonDocument &json, RJMemoryPoolAlloc &alloc) override
const std::string	getName () const override
Public Member Functions inherited from joda::query::IAggregator
	IAggregator (const std::string &toPointer, std::vector< std::unique_ptr< IValueProvider >> &&params)
	IAggregator (IAggregator const &)=delete
void	operator= (IAggregator const &x)=delete
virtual	~IAggregator ()=default
virtual const std::string &	getDestPointer () const
virtual std::vector< std::string >	getAttributes () const
std::string	getParameterStringRepresentation () const
virtual std::string	toString () const

Static Public Member Functions
static constexpr auto	getName_ ()

Protected Attributes
T::AggRep	val {}
bool	isAggregated = false
bool	enableArray = false
Protected Attributes inherited from joda::query::IAggregator
std::string	toPointer
std::vector< std::unique_ptr< IValueProvider > >	params

Additional Inherited Members
Protected Member Functions inherited from joda::query::IAggregator
void	checkParamSize (unsigned int expected)
void	checkMinParamSize (unsigned int expected)
void	checkParamType (unsigned int i, IValueType expected)
void	checkOptionalParamType (unsigned int i, IValueType expected)
std::vector< std::unique_ptr< IValueProvider > >	duplicateParameters () const

Detailed Description

template<class T>
class joda::query::NumberAggregator< T >

A class representing all simple single Aggregations of numbers (min/max/count/sum/sub/...)

Template Parameters

T

Constructor & Destructor Documentation

NumberAggregator()

template<class T >

joda::query::NumberAggregator< T >::NumberAggregator ( const std::string &  toPointer, std::vector< std::unique_ptr< IValueProvider >> &&  params  )

inline

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Member Function Documentation

accumulate()

template<class T >

void joda::query::NumberAggregator< T >::accumulate ( const RapidJsonDocument &  json, RJMemoryPoolAlloc &  alloc  )

inlineoverridevirtual

Accumulates another value. This function is called for every value once

Parameters

json	The Rapidjsondocument to retrieve values from. (Or an empty RapidJsonDocument for const values)
alloc	A MemoryPoolAllocator to create the values with

Implements joda::query::IAggregator.

duplicate()

template<class T >

std::unique_ptr<IAggregator> joda::query::NumberAggregator< T >::duplicate ( ) const

inlineoverridevirtual

Duplicates the Aggregator

Returns

A new Instance of the given Aggregator

Implements joda::query::IAggregator.

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getName()

template<class T >

const std::string joda::query::NumberAggregator< T >::getName ( ) const

inlineoverridevirtual

Returns the name of the Aggregator

Returns

Name of Aggregator

Implements joda::query::IAggregator.

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getName_()

template<class T >

static constexpr auto joda::query::NumberAggregator< T >::getName_ ( )

inlinestaticconstexpr

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merge()

template<class T >

void joda::query::NumberAggregator< T >::merge ( IAggregator *  other )

inlineoverridevirtual

Merges the given instance with another.

Parameters

other

Other instance to be merged. Has to be of same class!

Implements joda::query::IAggregator.

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terminate()

template<class T >

RJValue joda::query::NumberAggregator< T >::terminate ( RJMemoryPoolAlloc &  alloc )

inlineoverridevirtual

Terminates the aggregation and collects the values

Returns

Collected values (GroupKey,Value)

Implements joda::query::IAggregator.

Field Documentation

enableArray

template<class T >

bool joda::query::NumberAggregator< T >::enableArray = false

protected

isAggregated

template<class T >

bool joda::query::NumberAggregator< T >::isAggregated = false

protected

val

template<class T >

T::AggRep joda::query::NumberAggregator< T >::val {}

protected

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

• /home/nico/joda_tmp/tmp-joda-dirs/JODA-gh/libs/joda/core/modules/query/aggregate/include/joda/query/aggregation/NumberAggregator.h