org.apache.hadoop.metrics2 Class Hierarchy (Hadoop 1.2.1 API)
Date: 2013-07-22

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## Hierarchy For Package org.apache.hadoop.metrics2

Package Hierarchies:
  All Packages

## Class Hierarchy

- java.lang.Object
  - org.apache.hadoop.metrics2.Metric
    - org.apache.hadoop.metrics2.MetricCounter<T>
    - org.apache.hadoop.metrics2.MetricGauge<T>
  - org.apache.hadoop.metrics2.MetricsFilter (implements org.apache.hadoop.metrics2.MetricsPlugin)
  - org.apache.hadoop.metrics2.MetricsRecordBuilder
  - org.apache.hadoop.metrics2.MetricsSystem.AbstractCallback (implements org.apache.hadoop.metrics2.MetricsSystem.Callback)
  - org.apache.hadoop.metrics2.MetricsTag
  - java.lang.Throwable (implements java.io.Serializable)
    - java.lang.Exception
      - java.lang.RuntimeException
        - org.apache.hadoop.metrics2.MetricsException

## Interface Hierarchy

- org.apache.hadoop.metrics2.MetricsBuilder
- org.apache.hadoop.metrics2.MetricsPlugin
  - org.apache.hadoop.metrics2.MetricsSink
- org.apache.hadoop.metrics2.MetricsRecord
- org.apache.hadoop.metrics2.MetricsSource
- org.apache.hadoop.metrics2.MetricsSystem.Callback
- org.apache.hadoop.metrics2.MetricsSystemMXBean
  - org.apache.hadoop.metrics2.MetricsSystem
- org.apache.hadoop.metrics2.MetricsVisitor

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