Java refactoring

DateTimeRange.java

public class DateTimeRange {
  private final DateTime start;
	private final DateTime end;

	public DateTimeRange(final DateTime start, final DateTime end) {
		this.start = start;
		this.end = end;
	}

	public DateTime getStart() {
		return this.start;
	}

	public DateTime getEnd() {
		return this.end;
	}

	public boolean include(final DateTime date) {
		return this.start.isBefore(date) && this.end.isAfter(date);
	}
}

Order.java

public class Order {
	private final DateTime date;
	private final int amount;

	public Order(final DateTime date, final int amount) {
		this.date = date;
		this.amount = amount;
	}

	public DateTime getDate() {
		return this.date;
	}

	public int getAmount() {
		return this.amount;
	}

	public boolean isInRange(final DateTimeRange range) {
		return range.include(this.date);
	}
}

OrderReport.java

public class OrderReport {
	private final Collection<Order> orders;
	private final DateTimeRange range;

	public OrderReport(final Collection<Order> orders, final DateTimeRange range) {
		this.orders = orders;
		this.range = range;
	}

	public int getTotal() {
		int sum = 0;
		for (final Order order : this.getApplicable()) {
			sum += order.getAmount();
		}
		return sum;
	}

	private Collection<Order> getApplicable() {
		final Collection<Order> applicable = new LinkedList<>();
		for (final Order order : this.orders) {
			if (order.isInRange(this.range)) {
				applicable.add(order);
			}
		}
		return applicable;
	}
}