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From "Henri Yandell (JIRA)" <j...@apache.org>
Subject [jira] Closed: (LANG-513) Better EnumUtils
Date Wed, 08 Jul 2009 06:46:14 GMT

     [ https://issues.apache.org/jira/browse/LANG-513?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Henri Yandell closed LANG-513.
------------------------------

    Resolution: Fixed

Thanks for the patch Ivan. Applied.

svn ci -m "Applying Ivan Bilenjkij's patch from LANG-513, improving the generics of the getEnumMap
method" src

Sending        src/java/org/apache/commons/lang/EnumUtils.java
Sending        src/test/org/apache/commons/lang/EnumUtilsTest.java
Transmitting file data ..
Committed revision 792051.

> Better EnumUtils
> ----------------
>
>                 Key: LANG-513
>                 URL: https://issues.apache.org/jira/browse/LANG-513
>             Project: Commons Lang
>          Issue Type: Improvement
>    Affects Versions: 3.0
>            Reporter: Ivan Bilenjkij
>             Fix For: 3.0
>
>         Attachments: EnumUtils.patch, EnumUtilsTest.patch
>
>
> Parametrize the getEnumMap() method with <E extends Enum<E>>.  This narrows
down the argument so that non-enums and {{null}} are rejected at compile time. Also, at its
current state the EnumUtils should never be instantiated. 
> {code:title=EnumUtils.java} public static Map<String, Enum<?>> getEnumMap(Class
enumClass) {code}
> changes to:
> {code:title=EnumUtils.java} public static <E extends Enum<E>> Map<String,
Enum<E>> getEnumMap(Class<E> enumClass) {code}

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