Last week I got a question on exporting a property graph to flat files in Python. Turns out that JPype can cause a bit of headache with "no matching overloads found."
An easy solution is as follows:
JClass("oracle.pg.common.OraclePropertyGraphUtilsBase").exportFlatFiles(opg, "/tmp/g.opv", "/tmp/g.ove", False)
This solution is very cool in the sense that it works with any of the three supported property graph backend databases: Oracle Database 220.127.116.11, Oracle NoSQL Database, and Apache HBase.