Best way to create/set validity bitmap buffer in Java

[Li Jin]

Hi,

I am working on a function where I want to create an arrow record batch
from Spark dataset. I am curious what's the best way to create validity
bitmap buffer for a field?

I found BitVector which has a mutator
<https://github.com/apache/arrow/blob/master/java/vector/src/main/java/org/apache/arrow/vector/BitVector.java#L425>
that
seems to do the thing I want, I am wondering should I:

(1) create a BitVector
(2) set the value in the BitVector using the mutator
(3) pass the ArrowBuf from the BitVector
<https://github.com/apache/arrow/blob/45ed7e7a36fb2a69de468c41132b6b3bbd270c92/java/vector/src/main/java/org/apache/arrow/vector/BaseDataValueVector.java#L116>
to
the record batch?

Thanks,
Li