[jira] [Updated] (BEAM-106) Native support for conditional iteration

["Luke Cwik (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/BEAM-106?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Luke Cwik updated BEAM-106:
---------------------------
    Assignee: James Malone  (was: Luke Cwik)

> Native support for conditional iteration
> ----------------------------------------
>
>                 Key: BEAM-106
>                 URL: https://issues.apache.org/jira/browse/BEAM-106
>             Project: Beam
>          Issue Type: New Feature
>          Components: sdk-ideas
>            Reporter: Luke Cwik
>            Assignee: James Malone
>
> Ported from: https://github.com/GoogleCloudPlatform/DataflowJavaSDK/issues/50
> There are a variety of use cases which would benefit from native support for conditional iteration.
> For instance, http://stackoverflow.com/questions/31654421/conditional-iterations-in-google-cloud-dataflow/31659923?noredirect=1#comment51264604_31659923 asks about being able to write a loop like the following:
> PCollection data  = ...
> while(needsMoreWork(data)) {
>   data = doAStep(data)
> }
> If there are specific use cases please let us know the details. In the future we will use this issue to post progress updates.



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