Increments the counter specified by "prefix.postfix" in the given MetricRegistry.
Increments the counter specified by "prefix.postfix" in the given MetricRegistry.
The identifier for the counter is defined with some prefix and some postfix. The postfix is something like 'successes' or 'failures'. The prefix may be much more dynamically determined.
The prefix of the counter metric identifier. This may be a constant defined elsewhwere or dynamically computed by the route path.
The instance of an actor against which we will send the IncCounter request
The CounterMetric object holds helpers for code that implements Counters.