commons-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Sebb (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CSV-68) Use Builder pattern for CSVFormat
Date Fri, 16 Mar 2012 17:51:43 GMT

    [ https://issues.apache.org/jira/browse/CSV-68?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13231440#comment-13231440
] 

Sebb commented on CSV-68:
-------------------------

How about:

{code}
CSVFormat.withDelimiter(';').withEncapsulator('"').go();
{code}

It's one character shorter than your example.
                
> Use Builder pattern for CSVFormat
> ---------------------------------
>
>                 Key: CSV-68
>                 URL: https://issues.apache.org/jira/browse/CSV-68
>             Project: Commons CSV
>          Issue Type: Improvement
>            Reporter: Sebb
>         Attachments: CSV-68.patch
>
>
> Using a builder pattern to create CSVFormat instances would allow the settings to be
validated at creation time and would eliminate the need to keep creating new CSVFormat instances
whilst still allowing the class to be immutable.
> A possible API is as follows:
> {code}
> CSVFormat DEFAULT = CSVFormat.init(',') // delimiter is required
>         .withEncapsulator('"')
>         .withLeadingSpacesIgnored(true)
>         .withTrailingSpacesIgnored(true)
>         .withEmptyLinesIgnored(true)
>         .withLineSeparator("\r\n") // optional, as it would be the default
>         .build();
> CSVFormat format = CSVFormat.init(CSVFormat.DEFAULT) // alternatively start with pre-defined
format
>         .withSurroundingSpacesIgnored(false)
>         .build();
> {code}
> Compare this with the current syntax:
> {code}
> // internal syntax; not easy to determine what all the parameters do
> CSVFormat DEFAULT1 = new CSVFormat(',', '"', DISABLED, DISABLED, true, true, false, true,
CRLF);
> // external syntax
> CSVFormat format = CSVFormat.DEFAULT.withSurroundingSpacesIgnored(false);
> {code}
> As a proof of concept I've written skeleton code which compiles (but needs completing).

--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira

        

Mime
View raw message