[jira] [Work logged] (LANG-1639) Find enum using a predicate

["ASF GitHub Bot (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/LANG-1639?focusedWorklogId=534163&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-534163 ]

ASF GitHub Bot logged work on LANG-1639:
----------------------------------------

                Author: ASF GitHub Bot
            Created on: 11/Jan/21 09:22
            Start Date: 11/Jan/21 09:22
    Worklog Time Spent: 10m 
      Work Description: bonii-xx opened a new pull request #696:
URL: https://github.com/apache/commons-lang/pull/696


    Adds a method to obtain a matching enum value based on a predicate. Quite useful when mapping values to enums.
   
   I used Optional as the return type since it allows the removal of a default value without removing any functionality, the caller has to handle the returned value if it's not found.


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Issue Time Tracking
-------------------

            Worklog Id:     (was: 534163)
    Remaining Estimate: 0h
            Time Spent: 10m

> Find enum using a predicate
> ---------------------------
>
>                 Key: LANG-1639
>                 URL: https://issues.apache.org/jira/browse/LANG-1639
>             Project: Commons Lang
>          Issue Type: New Feature
>          Components: lang.enums.*
>            Reporter: Bernhard Bonigl
>            Priority: Major
>             Fix For: 3.12
>
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> `EnumUtils` supports finding an enum based on its name. However in my experience it's often required to find an enum mapped by another value related to the enum. To use a very simple example: Mapping a string input to an enum, where the string does not match the enum name.
> I propose adding a `getEnumByPredicate` method, that returns the first found enum value matching a given predicate. Could also be expanded to return a list of all matching values.



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