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From "Henri Yandell (JIRA)" <>
Subject [jira] Commented: (LANG-358) ObjectUtils.coalesce
Date Thu, 13 Aug 2009 09:01:14 GMT


Henri Yandell commented on LANG-358:

Ponders coalesce vs 'firstNotNull'. 

Interesting that the first doc I found on SQL coalesce uses firstNotNull as the label:

> ObjectUtils.coalesce
> --------------------
>                 Key: LANG-358
>                 URL:
>             Project: Commons Lang
>          Issue Type: New Feature
>            Reporter: Jörg Gottschling
>            Priority: Minor
>             Fix For: 3.0
>         Attachments:,
> I like to see the coalesce-function from SQL implemented in ObjectUtils. Something like
> <T> T ObjectUtils.coalesce(T... t)
> The first object, which is not null will be returned. This would replace all the defaultValue/defaultString/...
methods, with al flexibler and shorter method. It will also reuse an existing name.
> I think it's simple. Perhaps there should be overloading methods with fixed parameter
sizes. Following the jdk this seems to a little faster:
> <T> T ObjectUtils.coalesce(T t1, T t2)
> <T> T ObjectUtils.coalesce(T t1, T t2, T t3)
> ...
> I would provide it, including tests, if you like.

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