Yo, I'm Pierre, a french student, currently working on a cross-runtime project and would like to use the apache arrow Plasma Store. The project would get data in a Python runtime, store it in the plasma store, and some job in a Java runtime would then process the data asynchronously.
I'm having trouble with the Java part of this, as the Python implementation is very well documented. I managed to read and write byte arrays into the plasma store from my Java runtime, but I could not quite figure out how to process more complex objects. For instance, i'd like to dump a Pandas dataframe into the plasma store from the Python runtime, and read it in Java. I struggle with the metadata of the object put in the plasma store. I tried setting up a VectorSchemaRoot, with a predefined Schema in Java, but could not figure out how to write it to the plasma store, or to read from the plasma store into a VectorSchemaRoot. Would you be able to help me out with this? A small code sample of how it should be used in Java would help a lot. Best, Pierre Averous
