[jira] Commented: (LANG-532) Consider code in Collections

["Henri Yandell (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/LANG-532?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12789715#action_12789715 ] 

Henri Yandell commented on LANG-532:
------------------------------------

I also think the Comparators themselves are interesting to Lang. Specifically:

  NullComparator
  ReverseComparator
  ComparableComparator (which we now have a private copy of)
  ComparatorChain
  FixedOrderComparator

Basically all but BooleanComparator (which I think is useless and should be deleted) and TransformerComparator.

ComparatorUtils itself is mostly factory methods for these objects - I'm not sure we particularly need them. Also includes a min(Object,Object,Comparator) method which isn't too useful (basically null protection on the Comparator, with the 'odd' behaviour that it uses a ComparableComparator (even if not Comparable by the look of it).

We also have LANG-483 wanting to add a ComparisonUtils class.

> Consider code in Collections
> ----------------------------
>
>                 Key: LANG-532
>                 URL: https://issues.apache.org/jira/browse/LANG-532
>             Project: Commons Lang
>          Issue Type: Task
>            Reporter: Henri Yandell
>             Fix For: 3.0
>
>
> If and only if Collections be considered dead for 4.x and beyond, then consider if there is any code that wants to be scavenged to live in Lang 3.x.
> Basic rules:
> * No implementations of Collections.
> * If a successor of Collections defined, then not something it has.
> Basically potential additions to java.util.Collections I suspect.

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