It does not give semantic immutability. Java final only freezes bindings, not meanings. https://lnkd.in/gG47-g27 Therefore, correctness must be enforced by the Registry/kernel invariant, not by Java ...
http://xbib.org/repository/org/xbib/elasticsearch/importer/elasticsearch-jdbc/2.3.4.0/elasticsearch-jdbc-2.3.4.0-dist.zip The JDBC importer comes with open source ...