Tables is a simple utility for reading and writing tabular data (a set of rows with a fixed number of named columns with consistent types per column), particularly CSV files. This is not intended to be production grade. If you are loading a large number of files or manipulating very large data sets, you would be better off using spark or some other tool. I just use this to make simple utility classes to generate dummy data in various formats.
import static com.metatrope.tables.Sources.*
Etl.source(fromCsv(...)).sink(asJson()).convert(System.out);
This is a hobby project and a work in progress. It is not intended to be production grade.