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From "Gabriel Reid (JIRA)" <>
Subject [jira] [Commented] (CRUNCH-157) Mark the setContext function in the DoFn class as final
Date Sun, 03 Feb 2013 19:06:12 GMT


Gabriel Reid commented on CRUNCH-157:

+1 for the second patch (and we should update the JIRA description if that version does go
> Mark the setContext function in the DoFn class as final
> -------------------------------------------------------
>                 Key: CRUNCH-157
>                 URL:
>             Project: Crunch
>          Issue Type: Improvement
>          Components: Core
>    Affects Versions: 0.3.0, 0.4.0
>            Reporter: Josh Wills
>            Assignee: Josh Wills
>         Attachments: CRUNCH-157.patch, CRUNCH-157-sep.patch
> We often use a pattern of nested DoFns-- DoFns that are composed of operations on other
DoFns. There is currently an ambiguity around the right way to initialize those DoFns, since
it can be done either via overriding the initialize() or the setContext() methods in DoFn.
We should mark setContext as final in order to remove the ambiguity and fix the instances
in Crunch core where we override setContext() instead of initialize().

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