[jira] [Updated] (ARROW-5726) [Java] Implement a common interface for int vectors

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

     [ https://issues.apache.org/jira/browse/ARROW-5726?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

ASF GitHub Bot updated ARROW-5726:
----------------------------------
    Labels: pull-request-available  (was: )

> [Java] Implement a common interface for int vectors
> ---------------------------------------------------
>
>                 Key: ARROW-5726
>                 URL: https://issues.apache.org/jira/browse/ARROW-5726
>             Project: Apache Arrow
>          Issue Type: New Feature
>          Components: Java
>            Reporter: Ji Liu
>            Assignee: Ji Liu
>            Priority: Minor
>              Labels: pull-request-available
>
> Now in _DictionaryEncoder#encode_ it use reflection to pull out the set method and then set values. 
> Set values by reflection is not efficient and code structure is not elegant such as
> _Method setter = null;_
> _for (Class<?> c : Arrays.asList(int.class, long.class)) {_
>  _try {_
>  _setter = indices.getClass().getMethod("setSafe", int.class, c);_
>  _break;_
>  _} catch (NoSuchMethodException e) {_
>  _// ignore_
>  _}_
> _}_
> Implement a common interface for int vectors to directly get set method and set values seems a good choice.



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