Either JNI or pure Java compute is ok for me, and agreed that specific use-cases and designs are needed before starting.
A pure Java compute is easy to use for java developers I think and the algorithm module is a good start (thanks Liya Fan), if we finally decide this way, I can help if needed. Thanks, Ji Liu ------------------------------------------------------------------ From:Micah Kornfield <emkornfi...@gmail.com> Send Time:2019年11月26日(星期二) 13:02 To:dev <dev@arrow.apache.org> Subject:Re: Java API for Arrow Compute +1 to Liya Fan said. Before starting on the endeavor it would be nice to have concrete use-cases and what we think the end-state is, and some light-weight design upfront. It seems like in the Java world there are already a lot of analysis tools, and it isn't clear to me how a "compute" layer would fit into the ecosystem. There was some discussion around this on the mailing list recently [1]. As a personal preference, I would prefer trying to integrate with the C++ code base via JNI (as Wes mentioned) then build yet another set of computation components unless there were very clear goals of what a Java version would be looking to accomplish. However, if there are enough volunteers willing to support a pure Java compute, then it might be worthwhile. Thanks, Micah [1] https://lists.apache.org/thread.html/4b2776353bbc0d74369af19b6897cd9d47caf13fb8fd38c96f2cd32e@%3Cdev.arrow.apache.org%3E On Mon, Nov 25, 2019 at 6:07 PM Fan Liya <liya.fa...@gmail.com> wrote: > Hi Yuan, > > Currently, we have some APIs in the algorithm module of the Java project. > If you have more requirements, maybe you can describe your > requirements/scenarios, and start a discussion in the mailing list. > > Best, > Liya Fan > > > On Mon, Nov 25, 2019 at 11:17 PM Wes McKinney <wesmck...@gmail.com> wrote: > > > There is a little bit of compute work happening in Java now, but like > > any part of the project it depends on whether volunteers want to do > > the work. > > > > Since there is some JNI interfaces to C++ available already (for > > example to Gandiva), making increased use of C++ in Java via JNI may > > be one approach to exposing more compute functionality in Java. Some > > developers may wish to create native Java implementations of some > > things, though > > > > On Mon, Nov 25, 2019 at 8:47 AM ZHOU Yuan <dunk...@gmail.com> wrote: > > > > > > Hi Arrow developers, > > > > > > The compute APIs(neat!) seems now available in c++, python and rust, is > > > there any plan/work on adding the Java API? > > > > > > Cheers, -yuan > > >
