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Posted to issues@commons.apache.org by "Gilles (JIRA)" <ji...@apache.org> on 2012/07/23 00:57:34 UTC

[jira] [Commented] (MATH-610) [patch] objects that use compareTo should have equals as well

    [ https://issues.apache.org/jira/browse/MATH-610?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13420358#comment-13420358 ] 

Gilles commented on MATH-610:
-----------------------------

The patch won't apply anymore; we would need an updated version. But let's answer to your question first...

                
> [patch] objects that use compareTo should have equals as well
> -------------------------------------------------------------
>
>                 Key: MATH-610
>                 URL: https://issues.apache.org/jira/browse/MATH-610
>             Project: Commons Math
>          Issue Type: Improvement
>            Reporter: Dave Brosius
>            Priority: Trivial
>             Fix For: 3.1
>
>         Attachments: equals.diff
>
>
> NaturalRanking implements compareTo. Code that implements compareTo should also implement equals, and those that implement equals should implement hashCode. This patch does this.

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