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From "Fabian Lange (JIRA)" <>
Subject [jira] Closed: (LANG-485) StringUtils/WordUtils camelize - underscore functionality
Date Thu, 09 Apr 2009 08:55:12 GMT


Fabian Lange closed LANG-485.

    Resolution: Fixed

Thanks Henry, I didnt realize the capabilities of the split by character type. (partly because
I have 2.2 in my project)
However I think the javadoc or naming could be better. If I find a better way to explain the
splitByCharacterTypeCamelCase(), i will open a new ticket.

> StringUtils/WordUtils camelize -  underscore functionality
> ----------------------------------------------------------
>                 Key: LANG-485
>                 URL:
>             Project: Commons Lang
>          Issue Type: New Feature
>            Reporter: Fabian Lange
> I recently came across a problem which I expected to be solved already by StringUtils
or Word Utils.
> Some input like "MY_TINY_PROPERTY" needed to be converted to a bean name "myTinyProperty".
> The code I wrote for that (far from perfect) looks like this:
> private String toCamelCase(String value, boolean startWithLowerCase) {
> 	String[] strings = StringUtils.split(value.toLowerCase(), "_");
> 	for (int i = startWithLowerCase ? 1 : 0; i < strings.length; i++){
> 		strings[i] = StringUtils.capitalize(strings[i]);
> 	}
> 	return StringUtils.join(strings);
> }
> The way back would be a bit more complicated.
> If there is consensus that such a function could be useful, I am willing to create a
patch. However I can see reasons for not creating such a functionality (especially with the
way back) because requirements might differ. What is the commons approach here. Implement
something for the 80% case?

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