// SQLQueriesToFileWriter out = new SQLQueriesToFileWriter("/tmp/data");
// TrivialSQLWriter out = new TrivialSQLWriter();
// AdvancedSQLWriter out = new AdvancedSQLWriter(conn);
NoOpWriter out = new NoOpWriter();
SubjectAggregator aggregator = new SubjectAggregator(types, out);
FrenchSettlementHandler handler = new FrenchSettlementHandler(conn);
aggregator.addSpecificTypeHandler("dbonto:Settlement", handler);