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https://issues.apache.org/jira/browse/FLINK-12881?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Robert Metzger updated FLINK-12881:
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Component/s: Library / Machine Learning
> Add more functionalities for ML Params and ParamInfo class
> ----------------------------------------------------------
>
> Key: FLINK-12881
> URL: https://issues.apache.org/jira/browse/FLINK-12881
> Project: Flink
> Issue Type: Sub-task
> Components: Library / Machine Learning
> Reporter: Xu Yang
> Assignee: Xu Yang
> Priority: Major
> Labels: pull-request-available
> Time Spent: 10m
> Remaining Estimate: 0h
>
> 1. change Params$get to support aliases
> * support aliases
> * if the Params contains the specific parameter and alias, but has more than
> one value or
> * if the Params doesn't contains the specific parameter, while the ParamInfo
> is optional but has no default value, it will throw exception
> * when isOptional is true, contain(ParamInfo) is true, it will return the
> value found in Params, whether the value is null or not. when isOptional is
> true, contain(ParamInfo) is false: hasDefaultValue is true, it will return
> defaultValue. hasDefaultValue is false, it will throw exception. developer
> should use contain to check that Params has ParamInfo or not.
> 2. add size, clear, isEmpty, contains, fromJson in Params
> 3. fix ParamInfo, PipelineStage to adapt new Params
> * assert null in alias
> * use Params$loadJson in PipelineStage
> 4. add test cases about aliases
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