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https://issues.apache.org/jira/browse/BEAM-950?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15654527#comment-15654527
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Luke Cwik commented on BEAM-950:
--------------------------------
The primary use case is getting access to things like credentials/executor
service.
> DoFn Setup and Teardown methods should have access to PipelineOptions
> ---------------------------------------------------------------------
>
> Key: BEAM-950
> URL: https://issues.apache.org/jira/browse/BEAM-950
> Project: Beam
> Issue Type: Bug
> Components: sdk-java-core
> Reporter: Thomas Groh
> Assignee: Davor Bonaci
>
> This enables any options-relevant decisions to be made once per DoFn, without
> having to lazily initialize in {{startBundle}}
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