You are viewing a plain text version of this content. The canonical link for it is here.

Posted to commits@beam.apache.org by "Chuan Yu Foo (JIRA)" <ji...@apache.org> on 2018/02/23 00:05:00 UTC

[jira] [Created] (BEAM-3736) Add SetUp() and TearDown() for CombineFns

Chuan Yu Foo created BEAM-3736:
----------------------------------

             Summary: Add SetUp() and TearDown() for CombineFns
                 Key: BEAM-3736
                 URL: https://issues.apache.org/jira/browse/BEAM-3736
             Project: Beam
          Issue Type: Improvement
          Components: sdk-py-core
            Reporter: Chuan Yu Foo
            Assignee: Ahmet Altay


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).



--
This message was sent by Atlassian JIRA
(v7.6.3#76005)