Struct LastValueAggregator

pub struct LastValueAggregator { /* private fields */ }

Available on crate feature metrics only.

Aggregates last value events.

Trait Implementations

impl Aggregator for LastValueAggregator

fn update(&self, number: &Number, _descriptor: &Descriptor) -> Result<()>

Update receives a new measured value and incorporates it into the aggregation. Update calls may be called concurrently.

fn synchronized_move( &self, other: &Arc<dyn Aggregator + Send + Sync>, _descriptor: &Descriptor, ) -> Result<()>

This method is called during collection to finish one period of aggregation by atomically saving the currently-updating state into the argument Aggregator.

fn merge( &self, other: &(dyn Aggregator + Send + Sync), _descriptor: &Descriptor, ) -> Result<()>

This combines the checkpointed state from the argument Aggregator into this Aggregator. merge is not synchronized with respect to update or synchronized_move.

fn as_any(&self) -> &dyn Any

Returns the implementing aggregator as Any for downcasting.

impl Debug for LastValueAggregator

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl LastValue for LastValueAggregator

fn last_value(&self) -> Result<(Number, SystemTime)>

The last value of the currently aggregated metrics