o2::framework::data_matcher::ValueHolder< T > Class Template Reference

#include <DataDescriptorMatcher.h>

Public Member Functions
	ValueHolder (T const &s)
	ValueHolder (ContextRef variableId)
bool	operator== (ValueHolder< T > const &other) const
template<typename VISITOR >
decltype(auto)	visit (VISITOR visitor) const

Protected Attributes
std::variant< T, ContextRef >	mValue

Friends
template<typename V >
std::ostream &	operator<< (std::ostream &os, ValueHolder< V > const &holder)

Detailed Description

template<typename T>
class o2::framework::data_matcher::ValueHolder< T >

Can hold either an actual value of type T or a reference to a variable of the same type in the Context.

Definition at line 121 of file DataDescriptorMatcher.h.

Constructor & Destructor Documentation

ValueHolder() [1/2]

template<typename T >

o2::framework::data_matcher::ValueHolder< T >::ValueHolder ( T const &  s )

inline

ValueHolder() [2/2]

template<typename T >

o2::framework::data_matcher::ValueHolder< T >::ValueHolder ( ContextRef  variableId )

inline

This means that the matcher will fill a variable in the context if the ref points to none or use the dereferenced value, if not.

Member Function Documentation

operator==()

template<typename T >

bool o2::framework::data_matcher::ValueHolder< T >::operator== ( ValueHolder< T > const &  other ) const

inline

visit()

template<typename T >

template<typename VISITOR >

decltype(auto) o2::framework::data_matcher::ValueHolder< T >::visit ( VISITOR  visitor ) const

inline

Definition at line 136 of file DataDescriptorMatcher.h.

Friends And Related Symbol Documentation

operator<<

template<typename T >

template<typename V >

std::ostream & operator<< ( std::ostream &  os, ValueHolder< V > const &  holder  )

friend

Member Data Documentation

mValue

template<typename T >

std::variant<T, ContextRef> o2::framework::data_matcher::ValueHolder< T >::mValue

protected

Definition at line 147 of file DataDescriptorMatcher.h.

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

• /home/runner/work/AliceO2/AliceO2/Framework/Core/include/Framework/DataDescriptorMatcher.h