# All Classes

All Classes Interface Summary Class Summary
Counter: An incrementing and decrementing counter metric.
Counting
Gauge<T>: A gauge metric is an instantaneous reading of a particular value.
Histogram: A metric which calculates the distribution of a value.
Meter: A meter metric which measures mean throughput
Metric
MetricsService: The `MetricsService` enables creation of various types of `Metric`.
MetricsServiceFactory: Utility that provides a MetricsService to any class that has been loaded from an OSGi bundle.
Timer: A timer metric which aggregates timing durations and provides duration statistics.
Timer.Context: A timing context.