# Package com.hazelcast.jet.core.metrics

Jet's Job Metric API.

See: Description

- Class Summary
  Class | Description
  --- | ---
  JobMetrics | An immutable collection of job-specific metrics, pairs of metric names and sets of associated `Measurement`s.
  Measurement | Immutable data class containing information about one metric measurement, consisting of: metric value metric timestamp, generated when the metric was gathered metric descriptor (set of tag name-value pairs)
  MeasurementPredicates | Static utility class for creating various `Measurement` filtering predicates.
  MetricNames | Each metric provided by Jet has a specific name which conceptually identifies what it's being used to measure.
  MetricsDataSerializerHook | A Java Service Provider hook for Hazelcast's Identified Data Serializable mechanism.
  MetricTags | Metric descriptors are formed from a comma separated list of `tag_name=tag_value` pairs.

## Package com.hazelcast.jet.core.metrics Description

Jet's Job Metric API.

Since:
  3.2

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