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https://issues.apache.org/jira/browse/LANG-1269?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Pascal Schumacher resolved LANG-1269.
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Resolution: Fixed
Assignee: Pascal Schumacher (was: Bruno P. Kinoshita)
Fix Version/s: 3.6
> Wrong name or result of StringUtils::getJaroWinklerDistance
> -----------------------------------------------------------
>
> Key: LANG-1269
> URL: https://issues.apache.org/jira/browse/LANG-1269
> Project: Commons Lang
> Issue Type: Bug
> Affects Versions: 3.3, 3.4
> Reporter: Jan Martin Keil
> Assignee: Pascal Schumacher
> Priority: Minor
> Fix For: 3.6
>
>
> The name of the method StringUtils::getJaroWinklerDistance is misleading.
> Currently for equal strings {{1}} is returned, for completely different
> strings {{0}} is returned. That is a measure of similarity, not of a
> distance. A distance must be {{0}} for equal strings. I read on the issues
> LANG-591 and LANG-944, that it was decided to have a similar name to
> StringUtils::getLevenshteinDistance, but that requires also the change of the
> methods result.
> Could you please (1) rename the method to
> StringUtils::getJaroWinklerSimilarity or (2) change the method to return {{1
> - currentResult}}?
> First option has the disadvantage to lose the similar naming of the similar
> methods, second option implies the risk to unnoticed introduce bugs in
> depending code. So I think it is preferable to use the first option.
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