Examples of org.odmg.Database.open()

org.odmg.Database.open()
Open the named database with the specified access mode. Attempts to open a database when it has already been opened will result in the throwing of the exception DatabaseOpenException. A DatabaseNotFoundException is thrown if the database does not exist. Some implementations may throw additional exceptions that are also derived from ODMGException. @param name The name of the database. @param accessMode The access mode, which should be one of the static fields:OPEN_READ_ONLY, OPEN_READ_WRITE, or OPEN_EXCLUSIVE. @exception ODMGException The database could not be opened.

        Implementation odmg = OJB.getInstance();
        Database db = odmg.newDatabase();
        //open database
        try
        {
            db.open(databaseName, Database.OPEN_READ_WRITE);
        }
        catch (ODMGException ex)
        {
            fail("ODMGException: " + ex.getMessage());
        }

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        Implementation odmg = OJB.getInstance();
        Database db = odmg.newDatabase();
        //open database
        try
        {
            db.open(databaseName, Database.OPEN_READ_WRITE);
        }
        catch (ODMGException ex)
        {
            fail("ODMGException: " + ex.getMessage());
        }

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        Implementation odmg = OJB.getInstance();
        Database db = odmg.newDatabase();
        //open database
        try
        {
            db.open(databaseName, Database.OPEN_READ_WRITE);
        }
        catch (ODMGException ex)
        {
            fail("ODMGException: " + ex.getMessage());
        }

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        if ((whichTest & 2) == 2)
        {
            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();

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        protected void deleteArticles() throws Exception
        {
            long start = System.currentTimeMillis();
            Database db = odmg.newDatabase();
            db.open(databaseName, Database.OPEN_READ_WRITE);
            Transaction tx = odmg.newTransaction();
            tx.begin();
            for (int i = 0; i < arr.length; i++)
            {
                db.deletePersistent(arr[i]);

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        protected void insertNewArticles() throws Exception
        {
            long start = System.currentTimeMillis();
            Database db = odmg.newDatabase();
            db.open(databaseName, Database.OPEN_READ_WRITE);
            Transaction tx = odmg.newTransaction();
            tx.begin();
            for (int i = 0; i < arr.length; i++)
            {
                tx.lock(arr[i], Transaction.WRITE);

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        {
            long start = System.currentTimeMillis();
            int artId = arr[0].articleId;


            Database db = odmg.newDatabase();
            db.open(databaseName, Database.OPEN_READ_WRITE);
// for better performance we could read without a tx
//            Transaction tx = ojb.newTransaction();
//            tx.begin();
            OQLQuery query = odmg.newOQLQuery();
            String sql = "select allArticles from " + PerformanceArticle.class.getName() +

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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();
        DMap map = odmg.newDMap();

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        Implementation odmg = OJB.getInstance();
        Database db = odmg.newDatabase();
        //open database
        try
        {
            db.open(databaseName, Database.OPEN_READ_WRITE);
        }
        catch (ODMGException ex)
        {
            fail("ODMGException: " + ex.getMessage());
        }

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        Implementation odmg = OJB.getInstance();
        Database db = odmg.newDatabase();
        //open database
        try
        {
            db.open(databaseName, Database.OPEN_READ_WRITE);
        }
        catch (ODMGException ex)
        {
            fail("ODMGException: " + ex.getMessage());
        }

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