[−][src]Trait opentelemetry::sdk::export::metrics::Checkpointer
This is supported on crate feature
metrics
only.The interface used by a Controller
to coordinate the Processor
with
Accumulator
(s) and Exporter
(s). The start_collection
and
finish_collection
methods start and finish a collection interval.
Controller
s call the Accumulator
(s) during collection to process
Accumulation
s.
Required methods
pub fn checkpoint_set(&mut self) -> &mut dyn CheckpointSet
[src]
A checkpoint of the current data set. This may be called before and after collection. The implementation is required to return the same value throughout its lifetime.
pub fn start_collection(&mut self)
[src]
Logic to be run at the start of a collection interval.
pub fn finish_collection(&mut self) -> Result<()>
[src]
Cleanup logic or other behavior that needs to be run after a collection interval is complete.