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https://issues.apache.org/jira/browse/BEAM-3385?focusedWorklogId=646423&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-646423
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ASF GitHub Bot logged work on BEAM-3385:
----------------------------------------
Author: ASF GitHub Bot
Created on: 03/Sep/21 17:58
Start Date: 03/Sep/21 17:58
Worklog Time Spent: 10m
Work Description: lukecwik commented on pull request #15456:
URL: https://github.com/apache/beam/pull/15456#issuecomment-912712564
R: @lukecwik
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Issue Time Tracking
-------------------
Worklog Id: (was: 646423)
Time Spent: 40m (was: 0.5h)
> SerializableCoder should document types need to implement equals and hashCode
> correctly
> ---------------------------------------------------------------------------------------
>
> Key: BEAM-3385
> URL: https://issues.apache.org/jira/browse/BEAM-3385
> Project: Beam
> Issue Type: Improvement
> Components: sdk-java-core
> Reporter: Luke Cwik
> Priority: P3
> Labels: Clarified
> Time Spent: 40m
> Remaining Estimate: 0h
>
> We should document that SerializableCoder should be used only for objects
> that have a proper equals() and hashCode(). Because we need some structural
> value for mutation detection, and since this coder is non-deterministic, it
> can't provide any structural value other than the object itself. In this
> case, I suppose, the work would involve just documentation.
> Source for this JIRA stems from this discussion on dev@:
> https://lists.apache.org/thread.html/8b2dcf09ba8e46b3c008293d99e4028d10463148b68326687dc29a4d@%3Cdev.beam.apache.org%3E
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