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https://issues.apache.org/jira/browse/STORM-2072?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jungtaek Lim resolved STORM-2072.
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Resolution: Fixed
Fix Version/s: 1.1.0
2.0.0
Merged into master and 1.x branch.
> Add map, flatMap with different outputs (T->V) in Trident
> ---------------------------------------------------------
>
> Key: STORM-2072
> URL: https://issues.apache.org/jira/browse/STORM-2072
> Project: Apache Storm
> Issue Type: Improvement
> Components: storm-core
> Reporter: Jungtaek Lim
> Assignee: Jungtaek Lim
> Fix For: 2.0.0, 1.1.0
>
> Time Spent: 1.5h
> Remaining Estimate: 0h
>
> In STORM-1505 we introduced map, flatMap, filter to Trident which are more
> familiar than what Trident originally had (users had to use each and project
> to do the similar thing).
> Current version of map and flatMap assume next output fields are same to
> current output fields, in other words, supporting only T -> T conversion. But
> in many situations we need to have T -> V conversion.
> This issue adds T -> V conversion (via method overloading) to both map and
> flatMap.
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