public void testCheckCacheAfterRollback() throws Exception {
RollbackObjectOne ro = null;
RollbackObjectOne ro_2 = null;
String name = "testCheckCacheAfterRollback_" + System.currentTimeMillis();
Transaction tx = odmg.newTransaction();
tx.begin();
ro = new RollbackObjectOne();
ro.setName(name);
tx.lock(ro, Transaction.WRITE);
ro_2 = new RollbackObjectOne();
ro_2.setName(name);
tx.lock(ro_2, Transaction.WRITE);
tx.commit();
tx = odmg.newTransaction();
tx.begin();
OQLQuery query = odmg.newOQLQuery();
query.create("select all from " + RollbackObjectOne.class.getName() + " where name like $1");
query.bind(name);
List list = (List) query.execute();
tx.commit();
assertEquals(2, list.size());
tx = odmg.newTransaction();
tx.begin();
tx.lock(ro, Transaction.WRITE);
ro = new RollbackObjectOne();
ro.setDescription(name);
tx.lock(ro_2, Transaction.WRITE);
ro_2 = new RollbackObjectOne();
ro_2.setDescription(name);
tx.abort();
tx = odmg.newTransaction();
tx.begin();
query = odmg.newOQLQuery();
query.create("select all from " + RollbackObjectOne.class.getName() + " where name like $1");
query.bind(name);
list = (List) query.execute();
tx.commit();
assertEquals(2, list.size());
assertNull(((RollbackObjectOne) list.get(0)).getDescription());
assertNull(((RollbackObjectOne) list.get(1)).getDescription());
// after tx another tx should be able to lock these objects
TransactionImpl tx2 = (TransactionImpl) odmg.newTransaction();
tx2.begin();
try {
Iterator it = list.iterator();
while (it.hasNext()) {
Object o = it.next();
tx2.lock(o, Transaction.WRITE);
}
} finally {
tx2.abort();
}
}
/**
* Tests behavior within transactions. If i store 5 odmgZoos within a transaction and after that
* within the same transaction i do query 'select all odmgZoos' the number of odmgZoos returned
* should be oldNumber+5 when using checkpoint. thma: this testcase seems to fail for some strange
* problems with the testbed data the thrown error is unrelated to the things covered in the
* testcase. arminw: should be fixed
*/
public void testResultsWhileTransactionWithCheckpoint() throws Exception {
// if(ojbSkipKnownIssueProblem()) return;
int odmgZoosBefore = getDBObjectCountWithNewPB(ODMGZoo.class);
int projectsBefore = getDBObjectCountWithNewPB(ODMGGourmet.class);
TransactionExt tx = (TransactionExt) odmg.newTransaction();
tx.begin();
List zoos = new ArrayList(getNewODMGZoos("testResultsWhileTransactionWithCheckpoint", 5));
List projects = new ArrayList(getNewProjects("testResultsWhileTransactionWithCheckpoint", 3));
// store some objects
storeObjects(tx, zoos);
storeObjects(tx, projects);
// checkpoint, should bring objects to DB but shouldn't commit
tx.checkpoint();
// Do a queries within a transaction
int odmgZoosWhile = getDBObjectCountViaOqlQuery(odmg, ODMGZoo.class);
int projectsWhile = getDBObjectCountViaOqlQuery(odmg, ODMGGourmet.class);
int odmgZoosWhilePB = 0;
int projectsWhilePB = 0;
odmgZoosWhilePB = getDBObjectCount(tx.getBroker(), ODMGZoo.class);
projectsWhilePB = getDBObjectCount(tx.getBroker(), ODMGGourmet.class);
// store more
List zoos2 = new ArrayList(getNewODMGZoos("testResultsWhileTransactionWithCheckpoint", 5));
List projects2 = new ArrayList(getNewProjects("testResultsWhileTransactionWithCheckpoint", 2));
storeObjects(tx, zoos2);
storeObjects(tx, projects2);
zoos.addAll(zoos2);
projects.addAll(projects2);
// checkpoint, should bring objects to DB but shouldn't commit
tx.checkpoint();
// after checkpoint another tx should NOT be able to lock these objects
TransactionImpl tx2 = (TransactionImpl) odmg.newTransaction();
tx2.begin();
try {
Iterator it = zoos.iterator();
while (it.hasNext()) {
Object o = it.next();
tx2.lock(o, Transaction.WRITE);
}
it = projects.iterator();
while (it.hasNext()) {
Object o = it.next();
tx2.lock(o, Transaction.WRITE);
}
fail("After checkpoint all locks should be still exist for objects");
} catch (LockNotGrantedException e) {
// expected
assertTrue(true);
} finally {
tx2.abort();
}
// reassign tx
tx.join();
// more queries
int odmgZoosWhile2 = getDBObjectCountViaOqlQuery(odmg, ODMGZoo.class);
int projectsWhile2 = getDBObjectCountViaOqlQuery(odmg, ODMGGourmet.class);
int odmgZoosWhilePB2 = 0;
int projectsWhilePB2 = 0;
odmgZoosWhilePB2 = getDBObjectCount(tx.getBroker(), ODMGZoo.class);
projectsWhilePB2 = getDBObjectCount(tx.getBroker(), ODMGGourmet.class);
tx.commit();
int odmgZoosAfter = getDBObjectCountWithNewPB(ODMGZoo.class);
int projectsAfter = getDBObjectCountWithNewPB(ODMGGourmet.class);
int odmgZoosAfterOQL = getDBObjectCountViaOqlQueryUseNewTransaction(odmg, ODMGZoo.class);
int projectsAfterOQL = getDBObjectCountViaOqlQueryUseNewTransaction(odmg, ODMGGourmet.class);
assertEquals(
"Wrong number of odmgZoos found after commit", (odmgZoosBefore + 10), odmgZoosAfter);
assertEquals(
"Wrong number of projects found after commit", (projectsBefore + 5), projectsAfter);
assertEquals(
"Wrong number of odmgZoos found after commit", (odmgZoosBefore + 10), odmgZoosAfterOQL);
assertEquals(
"Wrong number of projects found after commit", (projectsBefore + 5), projectsAfterOQL);
/*
Here we test if we can see our changes while the transaction runs. IMO it must be
possible to see all changes made in a transaction.
*/
assertEquals(
"Wrong number of odmgZoos found while transaction", (odmgZoosBefore + 5), odmgZoosWhilePB);
assertEquals(
"Wrong number of projects found while transaction", (projectsBefore + 3), projectsWhilePB);
assertEquals(
"Wrong number of odmgZoos found while transaction",
(odmgZoosBefore + 10),
odmgZoosWhilePB2);
assertEquals(
"Wrong number of projects found while transaction", (projectsBefore + 5), projectsWhilePB2);
assertEquals(
"Wrong number of odmgZoos found while transaction", (odmgZoosBefore + 5), odmgZoosWhile);
assertEquals(
"Wrong number of projects found while transaction", (projectsBefore + 3), projectsWhile);
assertEquals(
"Wrong number of odmgZoos found while transaction", (odmgZoosBefore + 10), odmgZoosWhile2);
assertEquals(
"Wrong number of projects found while transaction", (projectsBefore + 5), projectsWhile2);
// after tx another tx should be able to lock these objects
tx2 = (TransactionImpl) odmg.newTransaction();
tx2.begin();
try {
Iterator it = zoos.iterator();
while (it.hasNext()) {
Object o = it.next();
tx2.lock(o, Transaction.WRITE);
}
it = projects.iterator();
while (it.hasNext()) {
Object o = it.next();
tx2.lock(o, Transaction.WRITE);
}
} finally {
tx2.abort();
}
}