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https://issues.apache.org/jira/browse/ARROW-1816?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16269661#comment-16269661
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ASF GitHub Bot commented on ARROW-1816:
---------------------------------------

BryanCutler commented on a change in pull request #1330: ARROW-1816: [Java] 
Resolve new vector classes structure for timestamp, date and maybe interval 
URL: https://github.com/apache/arrow/pull/1330#discussion_r153652065
 
 

 ##########
 File path: 
java/vector/src/main/codegen/templates/AbstractPromotableFieldWriter.java
 ##########
 @@ -42,6 +43,8 @@
    * @param type the type of the values we want to write
    * @return the corresponding field writer
    */
+  abstract protected FieldWriter getWriter(ArrowType type);
+
   abstract protected FieldWriter getWriter(MinorType type);
 
 Review comment:
   Is is possible to just have `getWriter(ArrowType)`?  Having 2 methods so 
similar is a little confusing.. This is because you need a writer for a 
specific time unit now?

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> [Java] Resolve new vector classes structure for timestamp, date and maybe 
> interval
> ----------------------------------------------------------------------------------
>
>                 Key: ARROW-1816
>                 URL: https://issues.apache.org/jira/browse/ARROW-1816
>             Project: Apache Arrow
>          Issue Type: Sub-task
>            Reporter: Li Jin
>            Assignee: Li Jin
>              Labels: pull-request-available
>             Fix For: 0.8.0
>
>
> Personally I think having 8 vector classes for timestamps is not great. This 
> is discussed at some point during the PR:
> https://github.com/apache/arrow/pull/1203#discussion_r145241388



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