Examples of org.apache.ojb.odmg.shared.Article

org.apache.ojb.odmg.shared.Article
Simple Article class is not derived from any base class nor does it implement any Interface, but still it can be made persistent by the PersistenceBroker. Has a lot of private members to be mapped to rdbms columns, but only few business methods

        //bind object to name
        tx.begin();


        // get new DList instance
        DList dlist = odmg.newDList();
        Article a1 = createArticle();
        Article a2 = createArticle();
        Article a3 = createArticle();
        dlist.add(a1);
        dlist.add(a2);
        dlist.add(a3);
        database.bind(dlist, bindingName);
        // lookup the named object - DList
        List value = (List) database.lookup(bindingName);
        assertNotNull("Could not lookup object for binding name: "+bindingName, value);
        tx.commit();


        try
        {
            tx.begin();
            database.bind(dlist, bindingName);
            tx.commit();
            fail("We expected a ObjectNameNotUniqueException, but was not thrown");
        }
        catch (ObjectNameNotUniqueException ex)
        {
            // we wait for this exception
            assertTrue(true);
            tx.abort();
        }


        try
        {
            tx.begin();
            tx.getBroker().clearCache();
            database.bind(dlist, bindingName);
            tx.commit();
            fail("We expected a ObjectNameNotUniqueException, but was not thrown");
        }
        catch (ObjectNameNotUniqueException ex)
        {
            // we wait for this exception
            assertTrue(true);
            tx.abort();
        }


        tx.begin();
        List result = (List) database.lookup(bindingName);
        assertNotNull(result);
        assertEquals(3, result.size());
        Article newA1 = (Article) result.get(0);
        assertNotNull(newA1);
        assertEquals(a1.getArticleName(), newA1.getArticleName());
        tx.commit();


        tx.begin();
        // we want to completely remove the named object
        // the persisted DList with all DList entries,

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    {
        String bindingName = "testBindPersistentCapableObject_" + System.currentTimeMillis();
        TransactionImpl tx = (TransactionImpl) odmg.newTransaction();
        //bind object to name
        tx.begin();
        Article example = createArticle();
        database.bind(example, bindingName);
        Article value = (Article) database.lookup(bindingName);
        assertTrue("Could not lookup object for binding name: "+bindingName, value != null);
        tx.commit();


        try
        {

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    public void testDoubleBindInOneTx() throws Exception
    {
        String bindingName = "testDoubleBindInOneTx_" + System.currentTimeMillis();


        Article article = createArticle();
        Article foundArticle = null;


        Transaction tx = odmg.newTransaction();
        tx.begin();
        database.bind(article, bindingName);

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        String bindingName = "testLookup_" + System.currentTimeMillis();
        // clear named roots.
        TransactionImpl tx = (TransactionImpl) odmg.newTransaction();
        //bind object to name
        tx.begin();
        Article example = createArticle();
        database.makePersistent(example);
        tx.commit();


        tx.begin();
        database.bind(example, bindingName);
        tx.commit();


        // TestThreadsNLocks look up
        Article lookedUp1 = null;
        tx = (TransactionImpl) odmg.newTransaction();
        tx.begin();
        // lookup by name binding
        lookedUp1 = (Article) database.lookup(bindingName);
        tx.commit();

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        String name = "testUnBind_" + System.currentTimeMillis();


        Transaction tx = odmg.newTransaction();
        //bind object to name
        tx.begin();
        Article example = createArticle();
        database.makePersistent(example);
        tx.commit();


        // 1. perform binding
        tx.begin();
        try
        {
            database.bind(example, name);
            tx.commit();
        }
        catch (ObjectNameNotUniqueException ex)
        {
            tx.abort();
            fail(ex.getMessage());
        }


        // 2. perform unbind
        tx = odmg.newTransaction();
        tx.begin();
        try
        {
            database.unbind(name);
            tx.commit();
        }
        catch (ObjectNameNotFoundException ex)
        {
            tx.abort();
            fail("name " + name + "should be known");
        }


        // 3. check if name is really unknown now
        tx = odmg.newTransaction();
        tx.begin();
        try
        {
            Article value = (Article) database.lookup(name);
            assertNotNull("Should not find unbind name '" + name+"'", value);
            fail("name " + name + " should not be known after unbind");
        }
        catch (ObjectNameNotFoundException ex)
        {

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        {
            tx.begin();


            ProductGroup pg = new ProductGroup();
            pg.setName("PG A");
            Article example = new Article();
            example.setProductGroup(pg);
            pg.addArticle(example);
            db.makePersistent(pg);


            // modify Object after persist call is allowed
            example.setStock(333);
            example.addToStock(47);
            example.addToStock(7);
            example.addToStock(4);


            //System.out.println("now commit all changes...");
            tx.commit();
        }
        catch (Exception ex)

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            OQLQuery query = odmg.newOQLQuery();
            query.create("select anArticle from " + Article.class.getName() + " where articleId = 60");
            List results = (List) query.execute();


            Article a = (Article) results.get(0);


            // cross check with PersistenceBroker lookup
            // 1. get OID
            Article example = new Article();
            example.setArticleId(60);
            Identity oid = new Identity(example, ((TransactionImpl) tx).getBroker());
            // 2. lookup object by OID
            PersistenceBroker broker = ((TransactionImpl) tx).getBroker();
            broker.clearCache();
            Article b = (Article) broker.getObjectByIdentity(oid);


            assertEquals("should be same object", a, b);


            //System.out.println("now commit all changes...");
            tx.commit();

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            // look it up again
            List newResults = (List) db.lookup(name);


            assertEquals(originalSize, newResults.size());
            Article art = (Article) newResults.get(0);
            assertNotNull(art);
//            OJB.getLogger().info(results);


            tx.commit();

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            query.create("select anArticle from " + Article.class.getName() + " where articleId = $678");
            query.bind(new Integer(30));


            List results = (List) query.execute();


            Article a = (Article) results.get(0);


            //crosscheck with PersistenceBroker lookup
            // 1. get OID
            Article example = new Article();
            example.setArticleId(30);
            Identity oid = new Identity(example, ((TransactionImpl) tx).getBroker());


            // 2. lookup object by OID
            PersistenceBroker broker = ((TransactionImpl) tx).getBroker();
            broker.clearCache();
            Article b = (Article) broker.getObjectByIdentity(oid);


            assertEquals("should be same object", a, b);


            //System.out.println("now commit all changes...");
            tx.commit();

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            // retrieve an Article
            OQLQuery query = odmg.newOQLQuery();
            query.create("select anArticle from " + Article.class.getName() + " where articleId = $678");
            query.bind(new Integer(30));
            List results = (List) query.execute();
            Article a = (Article) results.get(0);


            // manipulate metadata
            broker = ((TransactionImpl) tx).getBroker();
            cld = broker.getClassDescriptor(Article.class);
            tablename = cld.getFullTableName();
            cld.setTableName("ELVIS");
            broker.getDescriptorRepository().setClassDescriptor(cld);


            //broker will crash as metadata is corrupt
            a.addToStock(5);
            tx.commit();
            fail("Can commit tx with corrupt metadata");
        }
        catch (Throwable t)
        {

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