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Posted to issues@commons.apache.org by "Matt Benson (JIRA)" <ji...@apache.org> on 2009/09/11 19:32:57 UTC
[jira] Resolved: (COLLECTIONS-243) Generic versions of Predicated,
Syncronized and Unmodifiable classes
[ https://issues.apache.org/jira/browse/COLLECTIONS-243?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Matt Benson resolved COLLECTIONS-243.
-------------------------------------
Resolution: Fixed
Opened COLLECTIONS-333 to track the Transformed issue; the other classes are generic at least as of svn rev 738956.
> Generic versions of Predicated, Syncronized and Unmodifiable classes
> --------------------------------------------------------------------
>
> Key: COLLECTIONS-243
> URL: https://issues.apache.org/jira/browse/COLLECTIONS-243
> Project: Commons Collections
> Issue Type: Improvement
> Components: Bag, Collection, List, Set
> Affects Versions: Generics
> Environment: OS X
> Reporter: Edwin Tellman
> Assignee: Stephen Kestle
> Priority: Minor
> Fix For: Generics
>
> Attachments: collections_06_03_11.patch
>
>
> I added generics to some more classes and fixed some compilation problems.
> The generic version of Transformer required the input and output types to be identical. This seemed to me to reduce the usefulness of transformed collections, as transforming one type into another seems like it would be a fairly common operation. I'm not sure how to fix this, however, as it also doesn't seem feasible to have a generic TransformedCollection with different input and output types that implements Collection<E>. Anyway, this patch de-generifies TransformedCollection, which also fixes some compilation problems. Please disregard this change if you disagree and have a better solution.
> The modified collection classes are:
> Bags: PredicatedSortedBag, AbstractBagDecorator, SynchronizedBag, UnmodifiableSortedBag, SynchronizedSortedBag, PredicatedBag
> Lists: PredicatedList, SynchronizedList
> Sets: PredicatedSortedSet, SynchronizedSortedSet, PredicatedSet, UnmodifiableSortedSet, SynchronizedSet
> Miscellaneous: PredicatedBuffer
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