Thanks to Uwe! The Python step from C++ would have been next. You hit it!
Perfect shortcut.
Jacques, i am new here but i am gladly willing to help and learn. if you could
give me a hint for an outline and content of the blog post and where/how to
file it. Will read #3191 next.
greetings & thanks,
Hans
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Am 17.07.19, 17:14, Jacques Nadeau <jacq...@apache.org> schrieb:
Java > C++ has been available for a long time, I believe. With ARROW-3191,
we now have a good story as well for C++ > Java.
Reference management is the key thing you have to think about. Now that we
have the ReferenceManager interface in Java, you can decide how this works
between the two layers.
A blog post by someone on this would be great. If others don't get to this,
I'll see if I can.
On Wed, Jul 17, 2019 at 5:42 AM Uwe L. Korn <uw...@xhochy.com> wrote:
> Hello Hans,
>
> we sadly have no code for the C++<->Java interaction but a good example is
> the Python<->Java interaction code in
> https://github.com/apache/arrow/blob/master/python/pyarrow/jvm.py . This
> call Java from Python using the jpype1 module and then uses the memory
> pointers in the Java objects to construct pyarrow objects out of it.
>
> Cheers
> Uwe
>
> On Wed, Jul 17, 2019, at 2:38 PM, hans-joachim.bo...@web.de wrote:
> > In my application I need to share Arrow buffers allocated in Java with
> > C++ in the same process.
> > Is there already some code in Arrow to pass the native address from
> > Java to C++ or do I have to do my own JNI call?
> > I do not want to go via the Plasma sockets and did not find any hint in
> > docs and Jira.
> >
> > Can anybody point me to the right place or confirm that this is to be
> done ?
> >
> > Thanks,
> > Hans.
> >
>
