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https://issues.apache.org/jira/browse/FLINK-1525?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14537696#comment-14537696
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ASF GitHub Bot commented on FLINK-1525:
---------------------------------------
Github user rmetzger commented on the pull request:
https://github.com/apache/flink/pull/664#issuecomment-100805130
In Hadoop, the `UserConfig` would probably be a `Configuration` object with
key/value pairs.
In Flink, we are trying to get rid of these untyped maps.
Instead, I would recommend users to use a simple java class, like
```java
public static class MyConfig extends UserConfig {
public long someLongValue;
public int someInt;
// this is optional
public Map<String, String> toMap() { return null; }
}
```
It can be used in a similar way to a Configuration object, but the compiler
is able to check the types.
The `ParameterUtil` is implementing the UserConfig interface to expose the
configuration values through the Flink program & in the web interface.
> Provide utils to pass -D parameters to UDFs
> --------------------------------------------
>
> Key: FLINK-1525
> URL: https://issues.apache.org/jira/browse/FLINK-1525
> Project: Flink
> Issue Type: Improvement
> Components: flink-contrib
> Reporter: Robert Metzger
> Labels: starter
>
> Hadoop users are used to setting job configuration through "-D" on the
> command line.
> Right now, Flink users have to manually parse command line arguments and pass
> them to the methods.
> It would be nice to provide a standard args parser with is taking care of
> such stuff.
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