[ARROW-5290] [Java] Provide a flag to enable/disable null-checking in vectors' get methods

• Type: New Feature
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.14.0
• Component/s: Java
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/21757
• Assignee: Liya Fan
• Reporter: Liya Fan
• Created: 09/May/19 08:16
• Updated: 11/Jan/23 07:39
• Resolved: 13/May/19 13:16

Description

For vector classes, the get method first checks if the value at the given index is null. If it is not null, the method goes ahead to retrieve the value.
For some scenarios, the first check is redundant, because the application code has already checked the null, before calling the get method. This redundant check may have non-trivial performance overheads.

So we add a flag to enable/disable the null checking, so the user can set the flag according to their own specific scenario.

Issue Links

• relates to: ARROW-5200 [Java] Provide light-weight arrow APIs
• links to: GitHub Pull Request #4288