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From "Matt Benson (JIRA)" <j...@apache.org>
Subject [jira] Commented: (LANG-588) Create a basic Pair<L, R> class
Date Mon, 08 Feb 2010 21:55:27 GMT

    [ https://issues.apache.org/jira/browse/LANG-588?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12831145#action_12831145
] 

Matt Benson commented on LANG-588:
----------------------------------

Actually I'm now having second thoughts about how much call there is for iterating Pairs ;)
, and if there is there's a fairly quick way to do it already:
{code}
Pair<Integer, Double> pair = pairOf(10, 100d);
List<? extends Number> l = Arrays.asList(pair.left, pair.right);
{code}

So in this case, we could drop the iteration issue, calculate hashCode always, and be done?

> Create a basic Pair<L, R> class
> -------------------------------
>
>                 Key: LANG-588
>                 URL: https://issues.apache.org/jira/browse/LANG-588
>             Project: Commons Lang
>          Issue Type: New Feature
>          Components: lang.*
>            Reporter: Matt Benson
>             Fix For: 3.0
>
>         Attachments: MatchedPair.java, MatchedPairTest.java, Pair.java, PairTest.java
>
>
> [lang] is the perfect place to provide a basic typed Pair class.  I have written such
a class for my employer (who hasn't?) but can/will rewrite blind to avoid IP issues.  I think
it's also nice to go ahead and extend this to MatchedPair<T> extends Pair<T, T>
as well.

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