IndexBacking.java

@ManagedBean(name = "backing_index")
@ViewScoped
public class IndexBacking implements Serializable {

  private static final long serialVersionUID = 1L;

	@EJB
	private EntityBeanRemote entityBean;

	@EJB
	private RevisionBeanRemote revisionBean;

	private Employee employee;

	public void add() {

		employee = new Employee();
		employee.setName("Tseveen");

		EmploymentRevision employment1 = new EmploymentRevision();
		employment1.setSalary(1000D);
		employment1.setEffectiveDate(DateUtils.toDate(2013, 1, 10));
		employee.getEmployment().getRevisions().add(employment1);

		EmploymentRevision employment2 = new EmploymentRevision();
		employment2.setSalary(2000D);
		employment2.setEffectiveDate(DateUtils.toDate(2013, 3, 10));
		employee.getEmployment().getRevisions().add(employment2);

		employee = entityBean.save(employee);
	}

	public void testRevisions() {

		EmploymentRevision employment1 = revisionBean.getRevision(
				employee.getEmployment(), DateUtils.toDate(2012, 10, 10));

		EmploymentRevision employment2 = revisionBean.getRevision(
				employee.getEmployment(), DateUtils.toDate(2013, 2, 10));

		EmploymentRevision employment3 = revisionBean.getRevision(
				employee.getEmployment(), DateUtils.toDate(2013, 4, 10));

		System.out.println(employment1.getSalary());
		System.out.println(employment2.getSalary());
		System.out.println(employment3.getSalary());
	}
}