No, I don't think I've seen that pattern used in the wild.
If we wanted a singleton we could put it into
DefaultComparisonFormatter.
Thanks
Stefan
On 2015-02-21, Will Herrmann wrote:
> I'm not sure that I've ever seen that design pattern before; having a public
> static final variable of a concrete implementation within an interface.
> There's the benefit of being a singleton to be sure, but it just seems like
> an odd construct to me especially since core Java never uses it. If we want
> to go that route, I think I'd prefer a static method (c.f.
> java.lang.Charset.defaultCharset()). Then again, interfaces can't have
> implementations.
> Thanks,
> -Will Herrmann
> On Feb 19, 2015, at 5:54 AM, Stefan Bodewig <[email protected]> wrote:
>> On 2015-02-18, Will Herrmann wrote:
>>> I finally got a chance to make this change. I created a pull request for
>>> GitHub.
>> Many thanks.
>>> I'm still new to open source stuff, so let me know if I missed
>>> something about the procedure.
>> All is fine.
>> Harald's original ComparisonFormatter proposal had a static final
>> ComparisonFormatter field (DEFAULT, I think) which contained a
>> DefaultComparisonFormatter - ah, yes -
>> https://github.com/xmlunit/xmlunit/commit/e457399addf2db7d399e2d06d07064d3bee5ca03#diff-417caeda82b46db9f1bafca5765b3ff4R26
>> I later removed it because I thought only Diff would need it. With your
>> change maybe it is time to bring it back and use it from Difference and
>> Comparison as well?
>> Stefan
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