tree ed764f4468424c0aa8b11d03d328f517c920e020
parent 6eb3a89292016bc8325e592de60bf51ce0947d60
author dhruv <dhruv@apache.org> 1479408361 -0800
committer Mariia Mykhailova <mariia@apache.org> 1479860106 -0800

[REEF-1672] Define Immutable Counters and Gauges

This addressed the issue by
  * introducing Immutable gauges and counter classes.
  * introducing corresponding tests.

JIRA:
  [REEF-1672](https://issues.apache.org/jira/browse/REEF-1672)

Pull request:
  This closes #1183