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

        lookedUp.remove(2);
        lookedUp.remove(1);
        tx.commit();


        // check if deletion was successful
        tx = odmg.newTransaction();
        tx.begin();
        ((HasBroker) odmg.currentTransaction()).getBroker().clearCache();
        lookedUp = (DList) db.lookup(name);
        tx.commit();

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        // get facade instance
        Implementation odmg = OJB.getInstance();
        Database db = odmg.newDatabase();
        //open database
        db.open(databaseName, Database.OPEN_READ_WRITE);
        Transaction tx = odmg.newTransaction();


        tx.begin();
        DList list = odmg.newDList();
        db.bind(list, name);
        tx.commit();

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        tx.begin();
        DList list = odmg.newDList();
        db.bind(list, name);
        tx.commit();


        tx = odmg.newTransaction();
        tx.begin();
        for (int i = 0; i < 5; i++)
        {
            DListObject a = createObject(name);
            list.add(a);

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            assertNotNull(a);
            //System.out.print(a.getArticleId() + ", ");
        }




        tx = odmg.newTransaction();
        tx.begin();
        ((TransactionImpl) tx).getBroker().clearCache();
        DList lookedUp = (DList) db.lookup(name);
        // System.out.println("lookup list: " + lookedUp);
        assertNotNull("database lookup does not find DList", lookedUp);

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        // get facade instance
        Implementation odmg = OJB.getInstance();
        Database db = odmg.newDatabase();
        //open database
        db.open(databaseName, Database.OPEN_READ_WRITE);
        Transaction tx = odmg.newTransaction();
        tx.begin();
        DBag bag1 = odmg.newDBag();
        DBag bag2 = odmg.newDBag();
        DListObject a, b, c, d, e;
        a = createObject(name);

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        // get facade instance
        Implementation odmg = OJB.getInstance();
        Database db = odmg.newDatabase();
        //open database
        db.open(databaseName, Database.OPEN_READ_WRITE);
        Transaction tx = odmg.newTransaction();
        tx.begin();


        DListObject a, b, c, d, e;
        a = createObject(name);
        b = createObject(name);

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        db.bind(set1, set_1);
        db.bind(set2, set_2);
        tx.commit();


        // low lookup both sets
        tx = odmg.newTransaction();
        tx.begin();
        ((HasBroker) tx).getBroker().clearCache();
        DSet set1a = (DSet) db.lookup(set_1);
        DSet set2a = (DSet) db.lookup(set_2);

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    protected void deleteArticles() 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();
        for (int i = 0; i < articleCount; i++)
        {
            db.deletePersistent(arr[i]);

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    protected void insertNewArticles() 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();
        for (int i = 0; i < articleCount; i++)
        {
            db.makePersistent(arr[i]);

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    {
        Implementation odmg = OJB.getInstance();
        Database db = odmg.newDatabase();
        long start = System.currentTimeMillis();
        db.open(databaseName, Database.OPEN_READ_ONLY);
        Transaction tx = odmg.newTransaction();
        tx.begin();
        for (int i = 0; i < articleCount; i++)
        {
            OQLQuery query = odmg.newOQLQuery();
            String sql = "select allArticles from " + PerformanceArticle.class.getName() + " where articleId=" + i;

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