On 15 May 2014 14:21, Gary Gregory <garydgreg...@gmail.com> wrote:
> On Wed, May 14, 2014 at 3:19 PM, sebb <seb...@gmail.com> wrote:
>
>> On 13 May 2014 16:53, Benedikt Ritter <brit...@apache.org> wrote:
>> > Hi,
>> >
>> >
>> > 2014-05-13 12:06 GMT+02:00 sebb <seb...@gmail.com>:
>> >
>> >> At present, validate() is not invoked until the format is used. This
>> >> means that invalid arguments are not detected at the point they are
>> >> provided.
>> >>
>> >> It would be possible to run validate as part of the withArgument()
>> >> methods. This would allow earlier detection, and avoid the issue that
>> >> currently some incorrect arguments may generate ISE rather than IAE.
>> >>
>> >> I think the only possible user problem is that escape must be set
>> >> before using Quote.NONE as the policy, but this could be documented.
>> >> Otherwise AFAICT the arguments can be set in any order.
>> >>
>> >
>> > Validating the format when it is constructed rather then when it is used
>> is
>> > a good idea. But I think the only way to do this in a usable way is to
>> use
>> > the builder pattern. There are several field that depend on each other
>> > during the validation. We don't want end up having user to look up the
>> > validate code in order to be able to create formats...
>>
>> I agree it would be better to use the builder pattern, but I lost that
>> argument.
>>
>> I think it should still be possible to validate each argument
>> separately, even though they do depend on each other.
>>
>> However, it would prevent some subsequent changes to formats unless
>> they were done in the correct order.
>> e.g. if one wanted to swap the escape and delimiter characters that
>> would be a bit tricky.
>> But I don't see the need to support all possible sequences of updates
>> to formats, so long as a format can easily be fully configured
>> initially.
>>
>
> Would it make sense to provide an API that sets all aspects of settings
> that are interdependent?
>
> setEscapeAndDelimiter(esc, delim);

The delimiter and escape character must not match most other items.
The method would need to set just about everything ...

> ?
>
> Gary
>
>>
>> > Benedikt
>> >
>> >
>> >>
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>> >>
>> >>
>> >
>> >
>> > --
>> > http://people.apache.org/~britter/
>> > http://www.systemoutprintln.de/
>> > http://twitter.com/BenediktRitter
>> > http://github.com/britter
>>
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>>
>
>
> --
> E-Mail: garydgreg...@gmail.com | ggreg...@apache.org
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