[ARROW-5970] [Java] Provide pointer to Arrow buffer

• Type: New Feature
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.15.0
• Component/s: Java
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/22378
• Assignee: Liya Fan
• Reporter: Liya Fan
• Created: 17/Jul/19 12:14
• Updated: 11/Jan/23 07:43
• Resolved: 24/Jul/19 13:50

Description

Introduce pointer to a memory region within an ArrowBuf.

This pointer will be used as the basis for calculating the hash code within a vector, and equality determination.

This data structure can be considered as a "universal value holder".

Issue Links

• links to: GitHub Pull Request #4897