Examples of org.odmg.Transaction.commit()

org.odmg.Transaction.commit()
Commit and close the transaction. Calling commit commits to the database all persistent object modifications within the transaction and releases any locks held by the transaction. A persistent object modification is an update of any field of an existing persistent object, or an update or creation of a new named object in the database. If a persistent object modification results in a reference from an existing persistent object to a transient object, the transient object is moved to the database, and all references to it updated accordingly. Note that the act of moving a transient object to the database may create still more persistent references to transient objects, so its referents must be examined and moved as well. This process continues until the database contains no references to transient objects, a condition that is guaranteed as part of transaction commit. Committing a transaction does not remove from memory transient objects created during the transaction

        assertEquals(
                "children's names are equal",
                Arrays.asList(getFirstNames(returnedChildren)),
                Arrays.asList(getFirstNames(children)));
        // System.out.println(Arrays.asList(getFirstNames(returnedChildren)));
        tx.commit();


        /*
         delete father then children
         fk-constraints?
         */

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         */
        tx.begin();
        database.deletePersistent(returnedFather.getChildren()[0]);
        database.deletePersistent(returnedFather.getChildren()[1]);
        database.deletePersistent(returnedFather);
        tx.commit();


        qry = odmg.newOQLQuery();
        qry.create("select a from " + PersonImpl.class.getName() + " where firstname=$1");
        qry.bind(firstnameFather);
        result = (Collection) qry.execute();

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        persistentStoreObjects(database, getNewODMGZoos("testResultsAfterTransaction", 5));
        persistentStoreObjects(database, getNewProjects("testResultsAfterTransaction", 3));
        //store more
        storeObjects(tx, getNewODMGZoos("testResultsAfterTransaction", 5));
        storeObjects(tx, getNewProjects("testResultsAfterTransaction", 2));
        tx.commit();


        int odmgZoosAfter = getDBObjectCountWithNewPB(ODMGZoo.class);
        int projectsAfter = getDBObjectCountWithNewPB(Project.class);
        int odmgZoosAfterOQL = getDBObjectCountViaOqlQueryUseNewTransaction(odmg, ODMGZoo.class);
        int projectsAfterOQL = getDBObjectCountViaOqlQueryUseNewTransaction(odmg, Project.class);

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        persistentStoreObjects(database, getNewODMGZoos("testResultsAfterTransaction", 5));
        persistentStoreObjects(database, getNewProjects("testResultsAfterTransaction", 3));
        //store more
        storeObjects(tx, getNewODMGZoos("testResultsAfterTransaction", 5));
        storeObjects(tx, getNewProjects("testResultsAfterTransaction", 2));
        tx.commit();


        odmgZoosAfter = getDBObjectCountWithNewPB(ODMGZoo.class);
        projectsAfter = getDBObjectCountWithNewPB(Project.class);
        odmgZoosAfterOQL = getDBObjectCountViaOqlQueryUseNewTransaction(odmg, ODMGZoo.class);
        projectsAfterOQL = getDBObjectCountViaOqlQueryUseNewTransaction(odmg, Project.class);

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        persistentStoreObjects(database, getNewODMGZoos("testResultsAfterTransactionWithClearedCache", 5));
        persistentStoreObjects(database, getNewProjects("testResultsAfterTransactionWithClearedCache", 3));
        //store more
        storeObjects(tx, getNewODMGZoos("testResultsAfterTransactionWithClearedCache", 5));
        storeObjects(tx, getNewProjects("testResultsAfterTransactionWithClearedCache", 2));
        tx.commit();


        //###### hack we clear cache of PB ########
        PersistenceBroker tmp = PersistenceBrokerFactory.defaultPersistenceBroker();
        tmp.clearCache();
        tmp.close();

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        persistentStoreObjects(database, getNewODMGZoos("testResultsAfterTransactionWithClearedCache", 5));
        persistentStoreObjects(database, getNewProjects("testResultsAfterTransactionWithClearedCache", 3));
        //store more
        storeObjects(tx, getNewODMGZoos("testResultsAfterTransactionWithClearedCache", 5));
        storeObjects(tx, getNewProjects("testResultsAfterTransactionWithClearedCache", 2));
        tx.commit();


        //###### hack we clear cache of PB ########
        tmp = PersistenceBrokerFactory.defaultPersistenceBroker();
        tmp.clearCache();
        tmp.close();

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        Transaction tx = odmg.newTransaction();
        tx.begin();
        OQLQuery query = odmg.newOQLQuery();
        query.create("select allProjects from " + target.getName());
        List list = (List) query.execute();
        tx.commit();
        return list.size();
    }


    protected int getDBObjectCountViaOqlQuery(Implementation odmg, Class target) throws Exception
    {

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                database.deletePersistent(obj);
            }
        }
        finally
        {
            tx.commit();
        }
    }


    // user described test case
    public void testDuplicateLocking() throws Exception

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        tx.begin();
        ro = new RollbackObjectOne();
        ro.setName("test_step_1");
        tx.lock(ro, Transaction.WRITE);
        tx.lock(ro, Transaction.WRITE);
        tx.commit();


        tx.begin();
        tx.lock(ro, Transaction.WRITE);
        tx.lock(ro, Transaction.WRITE);
        ro.setName("test_step_2");

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        tx.begin();
        tx.lock(ro, Transaction.WRITE);
        tx.lock(ro, Transaction.WRITE);
        ro.setName("test_step_2");
        tx.commit();


        tx.begin();
        tx.lock(ro, Transaction.WRITE);
        ro.setName("test_step_3");
        tx.lock(ro, Transaction.WRITE);

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