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https://issues.apache.org/jira/browse/ARROW-1361?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16153738#comment-16153738
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Jacques Nadeau commented on ARROW-1361:
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On the Field change, I haven't spent that much time looking at it. Definitely
could be disruptive so I'm not going that route.
I like the getType() method and prefer that over many differently named methods.
> [Java] Add minor type param accessors to NullableValueVectors
> -------------------------------------------------------------
>
> Key: ARROW-1361
> URL: https://issues.apache.org/jira/browse/ARROW-1361
> Project: Apache Arrow
> Issue Type: Improvement
> Components: Java - Vectors
> Reporter: Bryan Cutler
> Assignee: Bryan Cutler
>
> A {{NullableValueVector}} creates private copies of each param in the minor
> type, but does not have any way public api to access them. So if given a
> {{NullableValueVector}} you would have to use the {{Field}} and cast to the
> correct type. For example, with a {{NullableTimeStampMicroTZVector}} and
> trying to get the timezone:
> {noformat}
> if field.getType.isInstanceOf[ArrowType.Timestamp] &&
> field.getType.asInstanceOf[ArrowType.Timestamp].getTimezone
> {noformat}
> It would be more convenient to have direct accessors for these type params.
> Also, it is possible to do some minor refactoring because
> {{NullableValueVectors}} does not use these type params, so there is no need
> to store them. They already exist in the inner vector object and the Field
> type.
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