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From "Edwin Tellman (JIRA)" <j...@apache.org>
Subject [jira] Updated: (COLLECTIONS-243) generic versions of some more classes
Date Tue, 13 Mar 2007 14:24:09 GMT

     [ https://issues.apache.org/jira/browse/COLLECTIONS-243?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Edwin Tellman updated COLLECTIONS-243:
--------------------------------------

    Description: 
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


  was:
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.




I updated the description to list the changed collection classes, as suggested.


> generic versions of some more classes
> -------------------------------------
>
>                 Key: COLLECTIONS-243
>                 URL: https://issues.apache.org/jira/browse/COLLECTIONS-243
>             Project: Commons Collections
>          Issue Type: Improvement
>          Components: Collection
>    Affects Versions: Generics
>         Environment: OS X
>            Reporter: Edwin Tellman
>            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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