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https://issues.apache.org/jira/browse/BEAM-3736?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17170196#comment-17170196
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Beam JIRA Bot commented on BEAM-3736:
-------------------------------------
This issue is P2 but has been unassigned without any comment for 60 days so it
has been labeled "stale-P2". If this issue is still affecting you, we care!
Please comment and remove the label. Otherwise, in 14 days the issue will be
moved to P3.
Please see https://beam.apache.org/contribute/jira-priorities/ for a detailed
explanation of what these priorities mean.
> Add SetUp() and TearDown() for CombineFns
> -----------------------------------------
>
> Key: BEAM-3736
> URL: https://issues.apache.org/jira/browse/BEAM-3736
> Project: Beam
> Issue Type: Improvement
> Components: beam-model, sdk-py-core
> Reporter: Chuan Yu Foo
> Priority: P2
> Labels: stale-P2
>
> I have a CombineFn that has a large amount of state that needs to be loaded
> once before it can add_input or merge_combiners (for example, the CombineFn
> might load up a large lookup table used for combining).
> Right now, to initialise this state, for each of the methods, I check if the
> state has already been initialised, and if not, I initialise it. It would be
> nice if CombineFn provided a SetUp() method that is called once to initialise
> this state (and a corresponding TearDown() method to clean up this state if
> necessary).
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