BP_ExtractorFactory.java

public final class ExtractorFactory<B> {

    public ExtractorFactory<B> factory(Supplier<B> factory) { /* ... */ }

    public <T> ExtractorFactory<B> add(
        BiConsumer<B, T> setter,
        BiFunction<ResultSet, Integer, T> getter, 
        Integer index) { /* ... */ }

    public Extractor<B> getExtractor() { /* ... */ }
}