[jira] [Resolved] (STORM-2072) Add map, flatMap with different outputs (T->V) in Trident

["Jungtaek Lim (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/STORM-2072?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jungtaek Lim resolved STORM-2072.
---------------------------------
       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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