Ji Liu created ARROW-5207:
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Summary: [Java] add APIs to support vector
Key: ARROW-5207
URL: https://issues.apache.org/jira/browse/ARROW-5207
Project: Apache Arrow
Issue Type: Improvement
Components: Java
Reporter: Ji Liu
In some scenarios we hope that ValueVector could be reused to reduce creation
overhead. This is very common in shuffle stage, it's no need to create
ValueVector or realloc buffers every time, suppose that the recordCount of
ValueVector and capacity of its buffers is written in stream, when we
deserialize it, we can simply judge whether realloc is needed through
dataLength.
My proposal is that add APIs in ValueVector to process this logic, otherwise
users have to implement by themselves if they want to reuse which is not
user-friendly.
If you agree with this, I would like to take this ticket. Thanks
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