[jira] [Closed] (BEAM-1804) expose values in CoGbkResult as Iterable

["Xu Mingmin (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/BEAM-1804?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Xu Mingmin closed BEAM-1804.
----------------------------
       Resolution: Not A Problem
    Fix Version/s: Not applicable

> expose values in CoGbkResult as Iterable<?>
> -------------------------------------------
>
>                 Key: BEAM-1804
>                 URL: https://issues.apache.org/jira/browse/BEAM-1804
>             Project: Beam
>          Issue Type: Improvement
>          Components: sdk-java-core
>            Reporter: Xu Mingmin
>            Assignee: Xu Mingmin
>             Fix For: Not applicable
>
>
> The joined result of {{CoGroupByKey}} is stored in {{List<Iterable<?>> valueMap}} of {{CoGbkResult}}.
> Now it's exposed as a singleton value with methods {{<V> V getOnly(TupleTag<V> tag)}}. This function throws exception if there're more than one records for given tag. 
> Would like to add a new method {{Iterator<V> getIterator(TupleTag<V> tag)}}, to cover the case with multiple-row. 



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