PayloadMetadata

Struct PayloadMetadata 

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pub struct PayloadMetadata { /* private fields */ }
Expand description

Payload metadata.

Contains the event count and an extensible map of typed metadata values. Components can store and retrieve arbitrary typed data using the set and get methods.

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impl PayloadMetadata

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pub fn from_event_count(event_count: usize) -> Self

Creates a new PayloadMetadata with the given event count.

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pub fn from_event_and_data_point_count( event_count: usize, data_point_count: usize, ) -> Self

Creates a new PayloadMetadata with the given event and data point counts.

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pub fn event_count(&self) -> usize

Returns the number of events in the payload.

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pub fn data_point_count(&self) -> usize

Returns the number of metric data points in the payload.

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pub fn get<T: Any + Clone + Send + Sync>(&self) -> Option<&T>

Gets a reference to a typed extension value, if present.

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pub fn with<T: Any + Clone + Send + Sync>(self, value: T) -> Self

Sets a typed extension value, returning self for chaining.

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pub fn set<T: Any + Clone + Send + Sync>(&mut self, value: T)

Sets a typed extension value in place.

Trait Implementations§

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impl Clone for PayloadMetadata

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fn clone(&self) -> PayloadMetadata

Returns a duplicate of the value. Read more
1.0.0 · Source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more

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🔬This is a nightly-only experimental API. (clone_to_uninit)
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