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https://issues.apache.org/jira/browse/ARROW-7494?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17264471#comment-17264471
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Jacques Nadeau commented on ARROW-7494:
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Yes, this should still be done. It's a remnant of the old coupling with Netty
that should be corrected.
> [Java] Remove reader index and writer index from ArrowBuf
> ---------------------------------------------------------
>
> Key: ARROW-7494
> URL: https://issues.apache.org/jira/browse/ARROW-7494
> Project: Apache Arrow
> Issue Type: Task
> Components: Java
> Reporter: Jacques Nadeau
> Assignee: Ji Liu
> Priority: Critical
> Labels: pull-request-available
> Fix For: 4.0.0
>
> Time Spent: 2h 20m
> Remaining Estimate: 0h
>
> Reader and writer index and functionality doesn't belong on a chunk of memory
> and is due to inheritance from ByteBuf. As part of removing ByteBuf
> inheritance, we should also remove reader and writer indexes from ArrowBuf
> functionality. It wastes heap memory for rare utility. In general, a slice
> can be used instead of a reader/writer index pattern.
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