CounterExemplarSampler

All Known Subinterfaces:: ExemplarSampler

All Known Implementing Classes:: DefaultExemplarSampler

public interface CounterExemplarSampler

Exemplar sampler for counter metrics.

Method Summary

Modifier and Type

Method

Description

Exemplar

sample(double increment, Exemplar previous)

Method Details
- sample
  
  Exemplar sample(double increment, Exemplar previous)
  
  Parameters:
  
  increment - the value added to the counter on this event
  
  previous - the previously sampled exemplar, or null if there is none.
  
  Returns:
  
  an Exemplar to be sampled, or null if the previous exemplar does not need to be updated. Returning null and returning previous is equivalent.