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From "Max Michels (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (FLINK-1486) Add a string to the print method to identify output
Date Fri, 06 Feb 2015 13:24:34 GMT

     [ https://issues.apache.org/jira/browse/FLINK-1486?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Max Michels reassigned FLINK-1486:
----------------------------------

    Assignee: Max Michels

> Add a string to the print method to identify output
> ---------------------------------------------------
>
>                 Key: FLINK-1486
>                 URL: https://issues.apache.org/jira/browse/FLINK-1486
>             Project: Flink
>          Issue Type: Improvement
>          Components: Local Runtime
>            Reporter: Max Michels
>            Assignee: Max Michels
>            Priority: Minor
>              Labels: usability
>
> The output of the {{print}} method of {[DataSet}} is mainly used for debug purposes.
Currently, it is difficult to identify the output.
> I would suggest to add another {{print(String str)}} method which allows the user to
supply a String to identify the output. This could be a prefix before the actual output or
a format string (which might be an overkill).
> {code}
> DataSet data = env.fromElements(1,2,3,4,5);
> {code}
> For example, {{data.print("MyDataSet: ")}} would output print
> {noformat}
> MyDataSet: 1
> MyDataSet: 2
> ...
> {noformat}



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