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https://issues.apache.org/jira/browse/ARROW-1047?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16225608#comment-16225608
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ASF GitHub Bot commented on ARROW-1047:
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icexelloss commented on issue #1259: ARROW-1047: [Java] Add Generic Reader
Interface for Stream Format
URL: https://github.com/apache/arrow/pull/1259#issuecomment-340558357
> I'm not sure, all of the current messages are geared towards vectors so it
makes sense to keep it there. Are you thinking of possible messages in the
future that might not be vector related?
I think this is fine for now.
Longer term, I kind of think we can improve the current package hierarchy
where all API is under the name space `org.apache.arrow.vector`. A hierarchy
similar to C++ might make more sense - `o.a.a.vector` `o.a.a.ipc` and etc. But
no need to do it here I think.
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> [Java] Add generalized stream writer and reader interfaces that are decoupled
> from IO / message framing
> -------------------------------------------------------------------------------------------------------
>
> Key: ARROW-1047
> URL: https://issues.apache.org/jira/browse/ARROW-1047
> Project: Apache Arrow
> Issue Type: New Feature
> Components: Java - Vectors
> Reporter: Wes McKinney
> Assignee: Bryan Cutler
> Labels: pull-request-available
>
> cc [~julienledem] [~elahrvivaz] [~nongli]
> The ArrowWriter
> https://github.com/apache/arrow/blob/master/java/vector/src/main/java/org/apache/arrow/vector/file/ArrowWriter.java
> accepts a WriteableByteChannel where the stream is written
> It would be useful to be able to support other kinds of message framing and
> transport, like GRPC or HTTP. So rather than writing a complete Arrow stream
> as a single contiguous byte stream, the component messages (schema,
> dictionaries, and record batches) would be framed as separate messages in the
> underlying protocol.
> So if we were using ProtocolBuffers and gRPC as the underlying transport for
> the stream, we could encapsulate components of an Arrow stream in objects
> like:
> {code:language=protobuf}
> message ArrowMessagePB {
> required bytes serialized_data;
> }
> {code}
> If the transport supports zero copy, that is obviously better than
> serializing then parsing a protocol buffer.
> We should do this work in C++ as well to support more flexible stream
> transport.
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