customer2 = root.getDataObject("CUSTOMER[2]");
assertEquals(3, customer1.getInt("ID"));
assertEquals(4, customer2.getInt("ID"));
// First page again
root = pager.previous();
customer1 = root.getDataObject("CUSTOMER[1]");
customer2 = root.getDataObject("CUSTOMER[2]");
assertEquals(1, customer1.getInt("ID"));
assertEquals(2, customer2.getInt("ID"));