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Posted to github@arrow.apache.org by GitBox <gi...@apache.org> on 2022/06/24 06:17:05 UTC
[GitHub] [arrow] lfygh opened a new issue, #13431: when use setBytes(), ArrowBuf.nioBuffer() is empty,but writeBytes(byte[]) can work.
lfygh opened a new issue, #13431:
URL: https://github.com/apache/arrow/issues/13431
what is the diff ArrowBuf#writeBytes(byte[]) vs ArrowBuf#setBytes(long, byte[]), if i use setBytes(), ArrowBuf.nioBuffer() is empty,but writeBytes(byte[]) can work. this is a bug or i miss sth?
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[GitHub] [arrow] lfygh closed issue #13431: when use setBytes(), ArrowBuf.nioBuffer() is empty,but writeBytes(byte[]) can work.
Posted by GitBox <gi...@apache.org>.
lfygh closed issue #13431: when use setBytes(), ArrowBuf.nioBuffer() is empty,but writeBytes(byte[]) can work.
URL: https://github.com/apache/arrow/issues/13431
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[GitHub] [arrow] lidavidm commented on issue #13431: when use setBytes(), ArrowBuf.nioBuffer() is empty,but writeBytes(byte[]) can work.
Posted by GitBox <gi...@apache.org>.
lidavidm commented on issue #13431:
URL: https://github.com/apache/arrow/issues/13431#issuecomment-1165553813
setBytes doesn't update writerIndex, but writeBytes does, and the length of the nioBuffer is defined as `writerIndex - readerIndex`. So if you use setBytes, the length of the buffer is still 0. The docstring could be clarified, but this sounds like intentional behavior to me.
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