public void testMasterUpdate() throws PersistenceException {
Complex fullname = new Complex("First", "Person");
// 1. load master object, add a new dependent object and commit
_db.begin();
TestLazyPerson loadPerson = (TestLazyEmployee) _db.load(TestLazyEmployee.class, fullname);
TestLazyAddress address = new TestLazyAddress();
address.setId(201);
address.setStreet("Halfpipe 1");
address.setCity("Skater Heaven");
address.setPerson(loadPerson);
loadPerson.getAddress().add(address);
_db.commit();
// 2. reuse master and commit. if we get a DuplicateIdentityException,
// the dependent object (id=201) was created twice.
_db.begin();
_db.update(loadPerson);
try {
_db.commit();
} catch (TransactionAbortedException e) {
if (e.getException() instanceof DuplicateIdentityException) {
stream.println("Error: The dependent object Address was just duplicated");
fail("The dependent object Address was just duplicated");
} else {
throw e;
}
}
// No DuplicateIdentityException means, that just one instance of Address (id=201)
// was created in the database. That's what we want to have.
}
public void testDepends() throws Exception {
Database db = null;
MasterObjectNoKeyGen master = new MasterObjectNoKeyGen();
master.setId(100);
master.setDescrip("This is the descrip.");
db = _category.getDatabase();
db.begin();
db.create(master);
db.commit();
assertTrue(master.getId() != 0);
assertEquals(100, master.getId());
// THIS Part Works!
db.begin();
DependentObjectNoKeyGen depends = new DependentObjectNoKeyGen();
depends.setId(101);
depends.setDescrip("Description");
master.setDepends(depends);
db.update(master);
db.commit();
assertTrue(master.getId() != 0);
assertEquals(100, master.getId());
int masterId = master.getId();
db.begin();
master = (MasterObjectNoKeyGen) db.load(MasterObjectNoKeyGen.class, new Integer(masterId));
assertNotNull(master.getDepends());
master.setDepends(null);
db.commit();
db.begin();
master = (MasterObjectNoKeyGen) db.load(MasterObjectNoKeyGen.class, new Integer(masterId));
assertNull(master.getDepends());
db.commit();
// THIS part doesn't!
db.begin();
master = (MasterObjectNoKeyGen) db.load(MasterObjectNoKeyGen.class, new Integer(masterId));
depends = new DependentObjectNoKeyGen();
depends.setId(102);
depends.setDescrip("Description");
master.setDepends(depends);
db.commit();
db.begin();
master = (MasterObjectNoKeyGen) db.load(MasterObjectNoKeyGen.class, new Integer(masterId));
assertNotNull(master.getDepends());
db.commit();
db.begin();
master = (MasterObjectNoKeyGen) db.load(MasterObjectNoKeyGen.class, new Integer(masterId));
assertNotNull(master);
db.remove(master);
db.commit();
}
public void runTest() throws PersistenceException {
TimeStampableObject object;
CallbacksInvoked cbi = new CallbacksInvoked();
cbi.allow(CallbacksInvoked.CREATING);
cbi.allow(CallbacksInvoked.USING);
cbi.allow(CallbacksInvoked.CREATED);
cbi.allow(CallbacksInvoked.STORING);
cbi.allow(CallbacksInvoked.RELEASING);
_i._callbacksInvoked.init();
_db.begin();
object = new TimeStampableObject();
LOG.debug("Creating new object: " + object);
_db.create(object);
_db.commit();
if (!cbi.equals(_i._callbacksInvoked)) {
LOG.error("Callbacks were not properly invoked: " + cbi + " != " + _i._callbacksInvoked);
fail("Callbacks were not properly invoked: " + cbi + " != " + _i._callbacksInvoked);
}
cbi.init();
cbi.allow(CallbacksInvoked.USING);
cbi.allow(CallbacksInvoked.LOADED);
cbi.allow(CallbacksInvoked.STORING);
cbi.allow(CallbacksInvoked.RELEASING);
cbi.allow(CallbacksInvoked.INSTANTIATE);
_i._callbacksInvoked.init();
_db.begin();
object =
(TimeStampableObject)
_db.load(TimeStampableObject.class, new Integer(TimeStampableObject.DEFAULT_ID));
object.setValue1("Alan");
_db.commit();
if (!cbi.equals(_i._callbacksInvoked)) {
LOG.error("Callbacks were not properly invoked: " + cbi + " != " + _i._callbacksInvoked);
fail("Callbacks were not properly invoked: " + cbi + " != " + _i._callbacksInvoked);
}
cbi.init();
cbi.allow(CallbacksInvoked.USING);
cbi.allow(CallbacksInvoked.UPDATED);
cbi.allow(CallbacksInvoked.STORING);
cbi.allow(CallbacksInvoked.RELEASING);
_i._callbacksInvoked.init();
object.setValue2("long transaction new value");
_db.begin();
_db.update(object);
_db.commit();
if (!cbi.equals(_i._callbacksInvoked)) {
LOG.error("Callbacks were not properly invoked: " + cbi + " != " + _i._callbacksInvoked);
fail("Callbacks were not properly invoked: " + cbi + " != " + _i._callbacksInvoked);
}
cbi.init();
cbi.allow(CallbacksInvoked.USING);
cbi.allow(CallbacksInvoked.LOADED);
cbi.allow(CallbacksInvoked.REMOVING);
cbi.allow(CallbacksInvoked.REMOVED);
cbi.allow(CallbacksInvoked.RELEASING);
cbi.allow(CallbacksInvoked.INSTANTIATE);
_i._callbacksInvoked.init();
_db.begin();
object =
(TimeStampableObject)
_db.load(TimeStampableObject.class, new Integer(TimeStampableObject.DEFAULT_ID));
_db.remove(object);
_db.commit();
if (!cbi.equals(_i._callbacksInvoked)) {
LOG.error("Callbacks were not properly invoked: " + cbi + " != " + _i._callbacksInvoked);
fail("Callbacks were not properly invoked: " + cbi + " != " + _i._callbacksInvoked);
}
}
public void testLongTransaction() throws Exception {
Product product = null;
ProductGroup group;
QueryResults results;
Database db = getJDOManager(DBNAME, MAPPING).getDatabase();
db.begin();
LOG.info("Begin transaction to remove Product objects");
// Look up the products and if found delete them from the database
OQLQuery productOql =
db.getOQLQuery("SELECT p FROM " + Product.class.getName() + " p WHERE p.id = $1");
for (int i = 4; i < 10; ++i) {
productOql.bind(i);
results = productOql.execute();
while (results.hasMore()) {
product = (Product) results.next();
LOG.debug("Deleting existing product: " + product);
db.remove(product);
}
}
LOG.info("End transaction to remove Product objects");
db.commit();
db.begin();
LOG.info("Begin transaction: one-to-one, one-to-many, and dependent relations");
// If no such group exists in the database, create a new object and persist it
OQLQuery groupOql =
db.getOQLQuery("SELECT g FROM " + ProductGroup.class.getName() + " g WHERE id = $1");
groupOql.bind(3);
results = groupOql.execute();
if (!results.hasMore()) {
group = new ProductGroup();
group.setId(3);
group.setName("a group");
db.create(group);
LOG.debug("Creating new group: " + group);
} else {
group = (ProductGroup) results.next();
LOG.debug("Query result: " + group);
}
// If no such product exists in the database, create a new object and persist it
// Note: product uses group, so group object has to be created first, but can
// be persisted later
productOql.bind(4);
results = productOql.execute();
if (!results.hasMore()) {
product = new Product();
product.setId(4);
product.setName("product4");
product.setPrice(200);
product.setGroup(group);
LOG.debug("Creating new product: " + product);
db.create(product);
} else {
LOG.debug("Query result: " + results.next());
}
LOG.info("End transaction: one-to-one, one-to-many and dependent relations");
db.commit();
db.begin();
LOG.info("Begin transaction: one-to-one and dependent relations");
group = (ProductGroup) db.load(ProductGroup.class, new Integer(3));
// If no such products with ids 5-8 exist, create new objects and persist them
for (int i = 5; i < 10; ++i) {
int j = i + 1;
productOql.bind(j);
results = productOql.execute();
if (!results.hasMore()) {
product = new Product();
product.setId(i);
product.setName("product" + product.getId());
product.setPrice(300);
product.setGroup(group);
LOG.debug("Creating new product: " + product);
db.create(product);
} else {
LOG.debug("Query result: " + results.next());
}
}
LOG.info("End transaction: one-to-one and dependent relations");
db.commit();
product.setPrice(333);
LOG.info("Updated Product price: " + product);
db.begin();
LOG.info("Begin transaction: long transaction");
// Don't forget to implement TimeStampable for the long transaction!!!
db.update(product);
LOG.info("End transaction: long transaction");
db.commit();
db.close();
LOG.info("Test complete");
}
