tisonkun opened a new issue, #465:
URL: https://github.com/apache/arrow-java/issues/465
### Describe the enhancement requested
I'm writing a convertor method to convert a base64 encoded byte array into
Arrow batches and returns it to the user.
```java
public List<Table> readArrowBatches(String rows, BufferAllocator
allocator) {
final List<Table> batches = new ArrayList<>();
final byte[] data = Base64.getDecoder().decode(rows);
final ByteArrayInputStream stream = new ByteArrayInputStream(data);
try (final ArrowStreamReader reader = new ArrowStreamReader(stream,
allocator)) {
while (reader.loadNextBatch()) {
batches.add(new Table(reader.getVectorSchemaRoot()));
}
} catch (IOException e) {
throw new UncheckedIOException(e);
}
return batches;
}
```
Since `ArrowStreamReader` replace the batch referred by
`getVectorSchemaRoot` in each iteration, I have to do a deepcopy of
VectorSchemaRoot every time.
Currently, I use Table's method as a workaround, but wonder if
`VectorSchemaRoot` deserves a `copy` method, or I implement such a typically
use case in a wrong way.
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