Template Class Histogram

• Defined in File meter.h

Inheritance Relationships

Base Type

• public opentelemetry::metrics::SynchronousInstrument

Derived Types

• public opentelemetry::metrics::NoopHistogram< T > (Template Class NoopHistogram)

• public opentelemetry::sdk::metrics::LongHistogram< T > (Template Class LongHistogram)

Class Documentation

template<class T>
class Histogram : public opentelemetry::metrics::SynchronousInstrument

A histogram instrument that records values.

Subclassed by opentelemetry::metrics::NoopHistogram< T >, opentelemetry::sdk::metrics::LongHistogram< T >

Public Functions

virtual void Record(T value, const context::Context &context) noexcept = 0

Records a value.

Parameters

value – The measurement value. MUST be non-negative.

virtual void Record(T value, const common::KeyValueIterable &attributes, const context::Context &context) noexcept = 0

Records a value with a set of attributes.

Parameters

• value – The measurement value. MUST be non-negative.

• attributes – A set of attributes to associate with the count.

template<class U, nostd::enable_if_t<common::detail::is_key_value_iterable<U>::value>* = nullptr>
inline void Record(T value, const U &attributes, const context::Context &context) noexcept

inline void Record(T value, std::initializer_list<std::pair<nostd::string_view, common::AttributeValue>> attributes, const context::Context &context) noexcept