Currently, each fixed width vector has the setNull method. All these implementations are identical, so we move them to the base class. **Reporter**: [Liya Fan](https://issues.apache.org/jira/browse/ARROW-6209) / @liyafan82 **Assignee**: [Liya Fan](https://issues.apache.org/jira/browse/ARROW-6209) / @liyafan82 #### PRs and other links: - [GitHub Pull Request #5064](https://github.com/apache/arrow/pull/5064) <sub>**Note**: *This issue was originally created as [ARROW-6209](https://issues.apache.org/jira/browse/ARROW-6209). Please see the [migration documentation](https://github.com/apache/arrow/issues/14542) for further details.*</sub>
Currently, each fixed width vector has the setNull method. All these implementations are identical, so we move them to the base class.
Reporter: Liya Fan / @liyafan82
Assignee: Liya Fan / @liyafan82
PRs and other links:
Note: This issue was originally created as ARROW-6209. Please see the migration documentation for further details.