[jira] [Commented] (COLLECTIONS-430) Create static factory methods for concrete data structure impls in the corresponding Utils classes

["Thomas Neidhart (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/COLLECTIONS-430?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13558232#comment-13558232 ] 

Thomas Neidhart commented on COLLECTIONS-430:
---------------------------------------------

Java 7 allows to omit the type parameter when creating the actual implementation:

{noformat}
  BidiMap<String, String> map = new DualHashBidiMap<>();
{noformat}

So for Java 7+ this may not be needed, but it would still be a nice addition for projects which can not update the source level soon.
                
> Create static factory methods for concrete data structure impls in the corresponding Utils classes
> --------------------------------------------------------------------------------------------------
>
>                 Key: COLLECTIONS-430
>                 URL: https://issues.apache.org/jira/browse/COLLECTIONS-430
>             Project: Commons Collections
>          Issue Type: Improvement
>    Affects Versions: 4.0
>            Reporter: Thomas Neidhart
>
> It is quite tedious to write code like this:
> {noformat}
>   BidiMap<String, String> map = new DualHashBidiMap<String, String>();
> {noformat}
> a more convenient way would be to take advantage from type inference like this:
> {noformat}
>   BidiMap<String, String> map = MapUtils.newHashBidiMap();
> {noformat}
> This would apply basically for all data structures that are available in CC atm.

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