Class NullSpanContext
Defined in File span_context_kv_iterable.h
Inheritance Relationships
Base Type
public opentelemetry::trace::SpanContextKeyValueIterable(Class SpanContextKeyValueIterable)
Class Documentation
-
class NullSpanContext : public opentelemetry::trace::SpanContextKeyValueIterable
Null Span context that does not carry any information.
Public Functions
-
inline virtual bool ForEachKeyValue(nostd::function_ref<bool(SpanContext, const common::KeyValueIterable&)>) const noexcept override
Iterate over SpanContext/key-value pairs
- Parameters:
callback – a callback to invoke for each key-value for each SpanContext. If the callback returns false, the iteration is aborted.
- Returns:
true if every SpanContext/key-value pair was iterated over
-
inline virtual size_t size() const noexcept override
- Returns:
the number of key-value pairs
-
inline virtual bool ForEachKeyValue(nostd::function_ref<bool(SpanContext, const common::KeyValueIterable&)>) const noexcept override