Aw: Re: Human-readable version of Arrow Schema

2020-05-07 Thread hans-joachim . bothe
Hi Chris, nice work. I am actually doing the same thing from the Python side and got a similar result. Only differences are - marking the JSON structure as a "schema" - using factory function names as "datatype" (see https://arrow.apache.org/docs/python/api/datatypes.html) - adding metadata

Aw: Re: [Discuss] C++ filenames: hyphens or underscores?

2019-08-07 Thread hans-joachim . bothe
Hi, I struggled long time if underscore or hyphen is better. The result was a mess, using both - never sure which one i actually used in a certain case. Today i am consistently using underscore in variable names and hyphens in file names. - No more trial and error. - Compliant to Linux naming,

Aw: Re: Sharing Java Arrow Buffer with C++ in same process

2019-07-17 Thread hans-joachim . bothe
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 & than

Sharing Java Arrow Buffer with C++ in same process

2019-07-17 Thread hans-joachim . bothe
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 Jir