ConsumerSupplierExample

import lombok.Data;

import java.util.HashMap;
import java.util.Map;
import java.util.function.Consumer;
import java.util.function.Supplier;

public class ConsumerSupplierExample {

    public static void main(String[] args) {
        ConsumerSupplierExample cse = new ConsumerSupplierExample();
        cse.go();
    }

    public void go() {
        Map<Supplier<String>, Consumer<String>> mapper = new HashMap<>();

        DataObjectOne dt1 = new DataObjectOne();
        DataObjectTwo dt2 = new DataObjectTwo();

        dt1.setOne("one");
        dt1.setTwo("two");
        dt1.setThree("three");

        mapper.put(dt1::getOne, dt2::setFour);
        mapper.put(dt1::getTwo, dt2::setFive);
        mapper.put(dt1::getThree, dt2::setSix);

        mapper.forEach( ((stringSupplier, stringConsumer) -> stringConsumer.accept(stringSupplier.get())));

        System.out.println(dt2.toString());
    }

    @Data
    public static class DataObjectOne {
        private String one, two, three;
    }

    @Data
    public static class DataObjectTwo {
        private String four, five, six;
    }

}