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https://issues.apache.org/jira/browse/FLINK-13668?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Konstantin Knauf updated FLINK-13668:
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Labels: pull-request-available (was: pull-request-available stale-major)
Removed "stale-critical|major|minor" label in line with
https://issues.apache.org/jira/browse/FLINK-22429.
> Add abstract classes for three typical scenarios of (Flat)Mapper.
> -----------------------------------------------------------------
>
> Key: FLINK-13668
> URL: https://issues.apache.org/jira/browse/FLINK-13668
> Project: Flink
> Issue Type: Sub-task
> Components: Library / Machine Learning
> Reporter: Xu Yang
> Priority: Major
> Labels: pull-request-available
> Time Spent: 10m
> Remaining Estimate: 0h
>
> _FlatMapper transforms one Row type data into zero_, _one_, _or more Row type
> result data_, _and Mapper transforms one Row type data into one Row type
> result data. For most of practical_ *scenarios*, *the outputs are single
> column. Using these extend classes*, *we can be more focus on the algorithm
> development.*
> * *Add SISOFlatMapper for the Single Input column and Single Output column
> scenario.*
> * *Add SISOMapper for the Single Input column and Single Output column
> scenario.*
> * *Add MISOMapper for the Multi Input column and Single Output column
> scenario.*
> * *Add Param definition for SISOFlatMapper*
> * *Add Param definition for SISOMapper*
> * *Add Param definition for MISOMapper*
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