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From "Daniel Halperin (JIRA)" <j...@apache.org>
Subject [jira] [Created] (BEAM-71) Watermark library
Date Thu, 25 Feb 2016 17:09:18 GMT
Daniel Halperin created BEAM-71:
-----------------------------------

             Summary: Watermark library
                 Key: BEAM-71
                 URL: https://issues.apache.org/jira/browse/BEAM-71
             Project: Beam
          Issue Type: New Feature
          Components: sdk-java-core
            Reporter: Daniel Halperin


See also: BEAM-70

We should have a library of watermark implementations:

* now: for when items use arrival timestamps
* latest element: for when events arrive in timestamp order
* moving average over last K time intervals
* bucketed moving average, ...




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