Examples of org.odmg.Implementation.newTransaction()

org.odmg.Implementation.newTransaction()
Create a Transaction object and associate it with the current thread. @return The newly created Transaction instance. @see org.odmg.Transaction

    protected void updateExistingArticles() throws Exception
    {
        Implementation odmg = OJB.getInstance();
        Database db = odmg.newDatabase();
        db.open(databaseName, Database.OPEN_READ_WRITE);
        Transaction tx = odmg.newTransaction();
        long start = System.currentTimeMillis();
        tx.begin();
        // update all objects
        for (int i = 0; i < articleCount; i++)
        {

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        try
        {
            createData(db, odmg);


            // 3. Get a list of some articles
            Transaction tx = odmg.newTransaction();
            tx.begin();


            OQLQuery query = odmg.newOQLQuery();
            String sql = "select aPerson.firstname, aPerson.lastname from " + org.apache.ojb.broker.Person.class.getName();
            query.create(sql);

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    public void testCreateWithUpdate() throws ODMGException
    {
        Implementation odmg = OJB.getInstance();
        Database db = odmg.newDatabase();
        db.open(databaseName, Database.OPEN_READ_WRITE);
        Transaction tx = odmg.newTransaction();
        long currentTime = System.currentTimeMillis();


        BidirectionalAssociationObjectA a = new BidirectionalAssociationObjectA();
        a.setPk("A" + currentTime);
        BidirectionalAssociationObjectB b = new BidirectionalAssociationObjectB();

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    public void NOTWORKINGtestCreateWithoutUpdate() throws ODMGException
    {
        Implementation odmg = OJB.getInstance();
        Database db = odmg.newDatabase();
        db.open(databaseName, Database.OPEN_READ_WRITE);
        Transaction tx = odmg.newTransaction();
        long currentTime = System.currentTimeMillis();
        BidirectionalAssociationObjectA a = new BidirectionalAssociationObjectA();
        a.setPk("A" + currentTime);
        BidirectionalAssociationObjectB b = new BidirectionalAssociationObjectB();
        b.setPk("B" + currentTime);

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        Database db = odmg.newDatabase();
        db.open(databaseName, Database.OPEN_READ_WRITE);
        OQLQuery query = odmg.newOQLQuery();
        int i = 0;
        query.create("select bidirectionalAssociationObjectA from " + BidirectionalAssociationObjectA.class.getName());
        Transaction tx = odmg.newTransaction();
        tx.begin();
        ManageableCollection all = (ManageableCollection) query.execute();
        java.util.Iterator it = all.ojbIterator();
        BidirectionalAssociationObjectA temp = null;
        while (it.hasNext())

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        Database db = odmg.newDatabase();
        db.open(databaseName, Database.OPEN_READ_WRITE);
        OQLQuery query = odmg.newOQLQuery();
        int i = 0;
        query.create("select bidirectionalAssociationObjectB from " + BidirectionalAssociationObjectB.class.getName());
        Transaction tx = odmg.newTransaction();
        tx.begin();
        ManageableCollection all = (ManageableCollection) query.execute();
        java.util.Iterator it = all.ojbIterator();
        BidirectionalAssociationObjectB temp = null;
        while (it.hasNext())

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        Implementation odmg = OJB.getInstance();
        Database db = odmg.newDatabase();
        db.open(databaseName, Database.OPEN_READ_WRITE);
        OQLQuery query = odmg.newOQLQuery();
        query.create("select bidirectionalAssociationObjectA from " + BidirectionalAssociationObjectA.class.getName());
        Transaction tx = odmg.newTransaction();
        tx.begin();
        ManageableCollection all = (ManageableCollection) query.execute();
        java.util.Iterator it = all.ojbIterator();


        while (it.hasNext())

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        Implementation odmg = OJB.getInstance();
        Database db = odmg.newDatabase();
        db.open(databaseName, Database.OPEN_READ_WRITE);
        OQLQuery query = odmg.newOQLQuery();
        query.create("select bidirectionalAssociationObjectB from " + BidirectionalAssociationObjectB.class.getName());
        Transaction tx = odmg.newTransaction();
        tx.begin();
        ManageableCollection all = (ManageableCollection) query.execute();
        java.util.Iterator it = all.ojbIterator();


        while (it.hasNext())

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        {
            PerformanceArticle art2 = createArticle(1001);
            Implementation ojb = OJB.getInstance();
            Database db = ojb.newDatabase();
            db.open(databaseName, Database.OPEN_READ_WRITE);
            Transaction tx = ojb.newTransaction();
            tx.begin();
            tx.lock(art2, Transaction.WRITE);
            tx.commit();


            tx.begin();

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        Database db = odmg.newDatabase();
        //open database
        db.open(databaseName, Database.OPEN_READ_WRITE);




        Transaction tx = odmg.newTransaction();
        tx.begin();
        DMap map = odmg.newDMap();
        PersistenceBroker broker = ((HasBroker) tx).getBroker();
        String name = null;
        try

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