[jira] [Commented] (ARROW-801) [JAVA] Provide direct access to underlying buffer memory addresses in consistent way without generating garbage or large amount indirections

["SIDDHARTH TEOTIA (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/ARROW-801?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16128129#comment-16128129 ] 

SIDDHARTH TEOTIA commented on ARROW-801:
----------------------------------------

PR: https://github.com/apache/arrow/pull/958

> [JAVA] Provide direct access to underlying buffer memory addresses in consistent way without generating garbage or large amount indirections
> --------------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: ARROW-801
>                 URL: https://issues.apache.org/jira/browse/ARROW-801
>             Project: Apache Arrow
>          Issue Type: Bug
>          Components: Java - Vectors
>            Reporter: Jacques Nadeau
>            Assignee: SIDDHARTH TEOTIA
>
> When working with Arrow vectors recently, we observed a situation where our time was dominated  by calls to getFieldBuffers() to be able to retrieve memory addresses (22s out of 26s total for a piece of code). We should provide a direct mechanism to access this data so we can avoid all the extra indirection and object creation. 
> A proposal:
> getBitAddress();
> getDataAddress();
> getOffsetAddress();
> These interfaces would be made available at the FieldVector interface and simply throw UnsupportedOperationException where not supported.
> Unsupported Operations: 
> data for list type
> offset for fixed width types
> data and offset for struct type
> data for union type



--
This message was sent by Atlassian JIRA
(v6.4.14#64029)