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https://issues.apache.org/jira/browse/FLINK-2692?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14961848#comment-14961848
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Aljoscha Krettek commented on FLINK-2692:
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If it is only used in tests, I would think so.
> Untangle CsvInputFormat into PojoTypeCsvInputFormat and
> TupleTypeCsvInputFormat
> --------------------------------------------------------------------------------
>
> Key: FLINK-2692
> URL: https://issues.apache.org/jira/browse/FLINK-2692
> Project: Flink
> Issue Type: Improvement
> Reporter: Till Rohrmann
> Assignee: Chesnay Schepler
> Priority: Minor
>
> The {{CsvInputFormat}} currently allows to return values as a {{Tuple}} or a
> {{Pojo}} type. As a consequence, the processing logic, which has to work for
> both types, is overly complex. For example, the {{CsvInputFormat}} contains
> fields which are only used when a Pojo is returned. Moreover, the pojo field
> information are constructed by calling setter methods which have to be called
> in a very specific order, otherwise they fail. E.g. one first has to call
> {{setFieldTypes}} before calling {{setOrderOfPOJOFields}}, otherwise the
> number of fields might be different. Furthermore, some of the methods can
> only be called if the return type is a {{Pojo}} type, because they expect
> that a {{PojoTypeInfo}} is present.
> I think the {{CsvInputFormat}} should be refactored to make the code more
> easily maintainable. I propose to split it up into a
> {{PojoTypeCsvInputFormat}} and a {{TupleTypeCsvInputFormat}} which take all
> the required information via their constructors instead of using the
> {{setFields}} and {{setOrderOfPOJOFields}} approach.
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