Examples of org.odmg.OQLQuery.execute()

org.odmg.OQLQuery.execute()
Execute the query. After executing a query, the parameter list is reset. Some implementations may throw additional exceptions that are also derived from ODMGException. @return The object that represents the result of the query.The returned data, whatever its OQL type, is encapsulated into an object. For instance, when OQL returns an integer, the result is put into an Integer object. When OQL returns a collection (literal or object), the result is always a Java collection object of the same kind (for instance, a DList). @exception QueryException An exception has occurred while executing the query.

        tx.begin();
        tx.getBroker().clearCache();
        query = odmg.newOQLQuery();
        query.create(queryGat);
        query.bind(gat.getGatId());
        result = (Collection) query.execute();
        assertEquals("Wrong number of objects found", 1, result.size());
        fetchedGat = (Gatherer) result.iterator().next();
        colC = fetchedGat.getCollectiblesC();
        assertEquals("Wrong number of CollectiblesA found in Gatherer", 2, colC.size());
        tx.commit();

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        OQLQuery query = odmg.newOQLQuery();
        query.create(queryStr);
        Integer gatId = gat.getGatId();
        assertNotNull(gatId);
        query.bind(gatId);
        Collection result = (Collection) query.execute();
        tx.commit();
        assertEquals("Wrong number of objects found", 1, result.size());
        Gatherer fetchedGat = (Gatherer) result.iterator().next();


        List colsA = fetchedGat.getCollectiblesA();

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        tx.begin();
        query = odmg.newOQLQuery();
        query.create("select allCollectibleA from " + CollectibleA.class.getName() +
                " where name like $1");
        query.bind(prefix + "%");
        result = (Collection) query.execute();
        assertEquals("Wrong number of objects found", 2, result.size());
        tx.commit();


        // check if the gatherer now contains a CollectibleBase list
        // reduced by the deleted

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        // reduced by the deleted
        tx.begin();
        query = odmg.newOQLQuery();
        query.create(queryStr);
        query.bind(gatId);
        result = (Collection) query.execute();
        assertEquals("Wrong number of objects found", 1, result.size());
        fetchedGat = (Gatherer) result.iterator().next();
        colsA = fetchedGat.getCollectiblesA();
        assertEquals("Wrong number of CollectiblesA found in Gatherer", 2, colsA.size());
        tx.commit();

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        OQLQuery query = odmg.newOQLQuery();
        query.create(queryStr);
        Integer gatId = gat.getGatId();
        assertNotNull(gatId);
        query.bind(gatId);
        Collection result = (Collection) query.execute();


        assertEquals("Wrong number of objects found", 1, result.size());
        Gatherer fetchedGat = (Gatherer) result.iterator().next();
        //*************************************
        tx.lock(fetchedGat, Transaction.WRITE);

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        query = odmg.newOQLQuery();
        query.create(queryStr);
        gatId = gat.getGatId();
        assertNotNull(gatId);
        query.bind(gatId);
        result = (Collection) query.execute();
        tx.commit();
        assertEquals("Wrong number of objects found", 1, result.size());
        fetchedGat = (Gatherer) result.iterator().next();


        assertNotNull(fetchedGat.getCollectiblesA());

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        OQLQuery query = odmg.newOQLQuery();
        query.create(queryStr);
        Integer gatId = gat.getGatId();
        assertNotNull(gatId);
        query.bind(gatId);
        Collection result = (Collection) query.execute();
        tx.commit();


        assertEquals("Wrong number of objects found", 1, result.size());
        Gatherer fetchedGat = (Gatherer) result.iterator().next();
        assertNotNull(fetchedGat.getCollectiblesA());

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        query = odmg.newOQLQuery();
        query.create(queryStr);
        gatId = gat.getGatId();
        assertNotNull(gatId);
        query.bind(gatId);
        result = (Collection) query.execute();
        tx.commit();
        assertEquals("Wrong number of objects found", 1, result.size());
        fetchedGat = (Gatherer) result.iterator().next();


        assertNotNull(fetchedGat.getCollectiblesA());

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        tx.begin();
        ((TransactionExt)tx).getBroker().clearCache();
        OQLQuery query = odmg.newOQLQuery();
        query.create(queryStr);
        query.bind(name);
        Collection result = (Collection) query.execute();
        assertNotNull(result);
        assertEquals(2, result.size());


        for (Iterator iterator = result.iterator(); iterator.hasNext();)
        {

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        tx.begin();
        ((TransactionExt)tx).getBroker().clearCache();
        query = odmg.newOQLQuery();
        query.create(queryStr);
        query.bind(name);
        result = (Collection) query.execute();
        assertNotNull(result);
        assertEquals(2, result.size());


        // we don't want that Gatherer does some cascade delete
        tx.setCascadingDelete(Gatherer.class, false);

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