import static ch.lambdaj.Lambda.having;
import static ch.lambdaj.Lambda.on;
import static ch.lambdaj.collection.LambdaCollections.with;
import static org.hamcrest.core.IsEqual.equalTo;

import java.util.Arrays;
import java.util.List;


public class Derp {

	public static class Person {

		Person() {
			
		}
		
		Person(int a) {
			dob.year = a;
		}
		
		DOB dob = new DOB();
		
		public DOB getDob() {
			return dob;
		}

		public void setDob(DOB dob) {
			this.dob = dob;
		}		
		
	}
	
	public static class DOB {
		private int year;

		public int getYear() {
			return year;
		}

		public void setYear(int year) {
			this.year = year;
		}
		
		
	}
	
	public static void main(String[] args) {
		List<Person> people = Arrays.asList(new Person(1985), new Person(1988), new Person(1985));

		
		List<Person> ppl1985 = with(people).retain(
				having(on(Person.class).getDob().getYear(), equalTo(1985)));
		
		for(Person p : ppl1985) {
			System.out.println(p+" = "+p.getDob().getYear());
		}
		
		System.out.println("derp");
		
		for(Person p : people) {
			System.out.println(p+" = "+p.getDob().getYear());
		}
	}
}