Convert a List to a Map using Orika

SO.java

import java.util.ArrayList;
import java.util.List;
import java.util.Map;

import ma.glasnost.orika.MapperFactory;
import ma.glasnost.orika.impl.ConfigurableMapper;

public class SO1 {

    /**
     * @param args
     */
    public static void main(String[] args) {

        ConfigurableMapper mapper = new ConfigurableMapper() {

            @Override
            protected void configure(MapperFactory factory) {

                factory.classMap(Source.class, Destination.class)
                        .field("pairs{theKey}", "values{key}")
                        .field("pairs{theValue}", "values{value}")
                        .byDefault()
                        .register();
            }

        };

        Source source = new Source().add("age", "20").add("name", "Lucas");

        System.out.println(mapper.map(source, Destination.class));

    }

    public static class Pair {
        public String theKey;
        public String theValue;
    }

    public static class Source {
        public List<Pair> pairs = new ArrayList<SO1.Pair>();

        public Source add(String key, String value) {
            final Pair e = new Pair();
            e.theKey = key;
            e.theValue = value;
            pairs.add(e);
            return this;

        }
    }

    public static class Destination {
        public Map<String, String> values;

        @Override
        public String toString() {
            return "Destination [values=" + values + "]";
        }

    }

}