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https://issues.apache.org/jira/browse/CSV-68?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13231899#comment-13231899
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Emmanuel Bourg commented on CSV-68:
-----------------------------------
I suggest to remove the validation completely. No other CSV API do that, and
the protection it provides is useless. Then the concept of an "invalid" format
disappears and there is no need to create a builder.
> 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, CSVFormat2.java, CVSFormat2Main.java
>
>
> 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).
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