public void testQueryLaptops() throws Exception {
Database database = _category.getDatabase();
database.begin();
OQLQuery query =
database.getOQLQuery("select l from " + Laptop.class.getName() + " as l order by l.id");
QueryResults results = query.execute();
if (results.hasMore()) {
int counter = 1;
Laptop laptop = null;
while (results.hasMore()) {
laptop = (Laptop) results.next();
assertNotNull(laptop);
assertEquals(counter, laptop.getId());
counter += 1;
}
} else {
fail("Query does not return any Laptop instances.");
}
database.commit();
database.close();
}
public static void testClone(int size) throws CloneNotSupportedException {
long start = System.currentTimeMillis();
Laptop t = new Laptop();
for (int i = 0; i < size; i++) {
Laptop temp = (Laptop) t.clone();
}
long end = System.currentTimeMillis();
System.out.println("clone的方式创建耗时：" + (end - start));
}
public void testCreateAndLoadLaptop() throws Exception {
Database database = _category.getDatabase();
database.begin();
ProductDetail detail = new ProductDetail();
detail.setId(10);
detail.setCategory("category 10");
detail.setLocation("location 10");
database.create(detail);
database.commit();
database.begin();
Laptop laptop = new Laptop();
laptop.setId(10);
laptop.setName("laptop 10");
laptop.setCpu("centrino");
laptop.setResolution("1600");
laptop.setWeight(2750);
laptop.setDetail((ProductDetail) database.load(ProductDetail.class, new Integer(10)));
database.create(laptop);
Owner owner = new Owner();
owner.setId(new Integer(10));
owner.setName("owner 10");
owner.setProduct(laptop);
database.commit();
database.begin();
laptop = (Laptop) database.load(Laptop.class, new Integer(10));
database.commit();
assertNotNull(laptop);
assertEquals("ctf.jdo.tc9x.Laptop", laptop.getClass().getName());
assertEquals(10, laptop.getId());
assertEquals("laptop 10", laptop.getName());
database.begin();
database.remove(database.load(Laptop.class, new Integer(10)));
database.remove(database.load(ProductDetail.class, new Integer(10)));
database.commit();
database.begin();
try {
laptop = (Laptop) database.load(Laptop.class, new Integer(10));
fail("Laptop with id 10 still exists.");
} catch (ObjectNotFoundException e) {
assertEquals(
"The object of type ctf.jdo.tc9x.Laptop with identity <10(10)> "
+ "was not found in persistent storage",
e.getMessage());
}
database.commit();
database.close();
}
public void testLoadLaptop() throws Exception {
Database database = _category.getDatabase();
database.begin();
Laptop laptop = (Laptop) database.load(Laptop.class, new Integer(1));
database.commit();
assertNotNull(laptop);
assertEquals("ctf.jdo.tc9x.Laptop", laptop.getClass().getName());
assertEquals(1, laptop.getId());
assertEquals("laptop 1", laptop.getName());
database.close();
}
public void testCreateAndLoadComputer() throws Exception {
Database database = _category.getDatabase();
database.begin();
Order order = new Order();
order.setId(12);
order.setName("order 12");
database.create(order);
database.commit();
database.begin();
ProductDetail detail = new ProductDetail();
detail.setId(12);
detail.setCategory("category 12");
detail.setLocation("location 12");
database.create(detail);
database.commit();
database.begin();
Laptop laptop = new Laptop();
laptop.setId(12);
laptop.setName("laptop 12");
laptop.setCpu("centrino");
laptop.setResolution("1600");
laptop.setWeight(2450);
laptop.setDetail((ProductDetail) database.load(ProductDetail.class, new Integer(12)));
database.create(laptop);
Collection orders = new LinkedList();
orders.add(database.load(Order.class, new Integer(12)));
laptop.setOrders(orders);
database.commit();
database.begin();
Computer computer = (Computer) database.load(Computer.class, new Integer(12));
database.commit();
assertNotNull(computer);
assertEquals("ctf.jdo.tc9x.Laptop", computer.getClass().getName());
assertEquals(12, computer.getId());
assertEquals("laptop 12", computer.getName());
database.begin();
computer = (Computer) database.load(Computer.class, new Integer(12));
database.remove(computer);
database.remove(database.load(ProductDetail.class, new Integer(12)));
database.remove(database.load(Order.class, new Integer(12)));
database.commit();
database.close();
}
