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From "Gary Gregory (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CSV-120) CSVFormat#withHeader doesn't work with CSVPrinter
Date Mon, 09 Jun 2014 22:23:02 GMT

    [ https://issues.apache.org/jira/browse/CSV-120?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14025851#comment-14025851
] 

Gary Gregory commented on CSV-120:
----------------------------------

Sounds like a good idea. Done:

{noformat}
commit -m "<action issue="CSV-120" type="add" dev="ggregory" due-to="Sergei Lebedev">CSVFormat#withHeader
doesn't work with CSVPrinter</action>" C:/vcs/svn/apache/commons/trunks-proper/csv/src/main/java/org/apache/commons/csv/CSVFormat.java
C:/vcs/svn/apache/commons/trunks-proper/csv/src/main/java/org/apache/commons/csv/CSVPrinter.java
C:/vcs/svn/apache/commons/trunks-proper/csv/src/test/java/org/apache/commons/csv/CSVPrinterTest.java
C:/vcs/svn/apache/commons/trunks-proper/csv/src/changes/changes.xml
    Sending        C:/vcs/svn/apache/commons/trunks-proper/csv/src/changes/changes.xml
    Sending        C:/vcs/svn/apache/commons/trunks-proper/csv/src/main/java/org/apache/commons/csv/CSVFormat.java
    Sending        C:/vcs/svn/apache/commons/trunks-proper/csv/src/main/java/org/apache/commons/csv/CSVPrinter.java
    Sending        C:/vcs/svn/apache/commons/trunks-proper/csv/src/test/java/org/apache/commons/csv/CSVPrinterTest.java
    Transmitting file data ...
    Committed revision 1601517.
{noformat}

> CSVFormat#withHeader doesn't work with CSVPrinter
> -------------------------------------------------
>
>                 Key: CSV-120
>                 URL: https://issues.apache.org/jira/browse/CSV-120
>             Project: Commons CSV
>          Issue Type: Bug
>            Reporter: Sergei Lebedev
>            Priority: Minor
>             Fix For: 1.0
>
>
> In the current version [CSVFormat#withHeader|https://commons.apache.org/proper/commons-csv/apidocs/org/apache/commons/csv/CSVFormat.html#withHeader(java.lang.String...)]
is only used by CSVParser. It would be nice if CSVPrinter also supported it. Ideally, the
following line of code
> {code:java}
> CSVPrinter csvPrinter
>   = CSVFormat.TDF
>     .withHeader("x")
>     .print(Files.newBufferedWriter(Paths.get("data.csv")));
> csvPrinter.printRecord(42);
> csvPrinter.close();
> {code}
> should produce
> {code}
> x
> 42
> {code}
> If you're alright with the idea of automatically inserting headers, I can attach a patch.



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