[
https://issues.apache.org/jira/browse/LANG-588?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12833242#action_12833242
]
Gary Gregory commented on LANG-588:
-----------------------------------
In the Smalltalk world, this was called an Association with a key and value, so
in Java we could have Association<K,V>.
If you really care about providing immutable assocs, then you can a mutable and
immutable interface.
I too have written and re-written many versions of this class through time.
This is really a public version of what the JRE provides in the MapEntry class
of course. I usually end up with Maps of Associations.
> 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: 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.
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
