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https://issues.apache.org/jira/browse/SQOOP-1811?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14229139#comment-14229139
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Veena Basavaraj commented on SQOOP-1811:
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The method is final means it cannot be overriden, The custom IDF has to call 
the setSqoopCSVString metthod.

So this means when the getSqoopCSVString is called, the text is already in the 
format it needs to be.

I even gave you the code example above, see the second line in setData method 
of a custom class.

> IDF API changes
> ---------------
>
>                 Key: SQOOP-1811
>                 URL: https://issues.apache.org/jira/browse/SQOOP-1811
>             Project: Sqoop
>          Issue Type: Sub-task
>          Components: sqoop2-framework
>            Reporter: Veena Basavaraj
>             Fix For: 1.99.5
>
>
> 1. update the java docs for IDF apis.
> 2.  Make the getTextData final and call it getCSV and setCSV, so it is 
> obvious that we want to enforce CSV format
>  the following code can move to the base class IntermediateDataFormat and 
> made final, so there is no way to override this and we can enforce all to 
> return String instead of generic T
> {code}
> // hold the string in IDF base class
>  private final String text.
>  
>   public final String getCSVTextData() {
>     return text;
>   }
>  
>   public final void setCSVTextData(String text) {
>     this.text = text;
>   }
> {code}
> There is code in CSVIDF implementation that has the rules for CSV parsing 
> that can be pulled out into CSV Utils so that the connectors can use
> The T in CSV happens to String, which is just a coincidence, If I write a new 
> IDF implementation T can be a custom object that could encapsulate the whole 
> row.
> Third, getData and setData can have custom implementation so they can be 
> overriden to return the generic type T



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