Examples of com.db4o.query.Query.execute()

com.db4o.query.Query.execute()
executes the {@link Query}. @return {@link ObjectSet} - the result of the {@link Query}.


        storage = this.controller.getStorage();
        Query query = getContainer().query();
        query.constrain(BaseEntry.class);
        query.descend("id").constrain(e.getId());
        ObjectSet resultSet = query.execute();
        assertEquals(1, resultSet.size());
        BaseEntry storedEntry = (BaseEntry) resultSet.next();
        assertEquals("1", storedEntry.getVersionId());


        ServerBaseFeed bFeed = new ServerBaseFeed();

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        container.close();
        container = getContainer();
        Query query = container.query();
        query.constrain(BaseEntry.class);
        query.descend("id").constrain(e.getId());
        ObjectSet resultSet = query.execute();
        assertEquals(0, resultSet.size());


        // #### test version matching
        ServerBaseEntry eVersion = createServerBaseEntry();
        storage.storeEntry(eVersion);

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        container.close();
        container = getContainer();
        query = container.query();
        query.constrain(BaseEntry.class);
        query.descend("id").constrain(e1.getId());
        resultSet = query.execute();
        assertEquals(0, resultSet.size());


        // ############ test concurrency


        // ############ test concurrency

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        storage.updateEntry(e2);
        ObjectContainer container = getContainer();
        Query query = container.query();
        query.constrain(BaseEntry.class);
        query.descend("id").constrain(e.getId());
        ObjectSet resultSet = query.execute();
        assertEquals(1, resultSet.size());
        BaseEntry result = (BaseEntry) resultSet.next();
        assertEquals("new", result.getTitle().getPlainText());
        assertEquals("2", result.getVersionId());

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        storage.storeAccount(account);
        ObjectContainer container = getContainer();
        Query q = container.query();
        q.constrain(GDataAccount.class);
        q.descend("name").constrain(account.getName());
        ObjectSet set = q.execute();
        assertEquals(1, set.size());
        assertEquals(account.getPassword(), ((GDataAccount) set.next())
                .getPassword());
        try {
            storage.storeAccount(account);

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        storage.storeAccount(account);
        ObjectContainer container = getContainer();
        Query q = container.query();
        q.constrain(GDataAccount.class);
        q.descend("name").constrain(account.getName());
        ObjectSet set = q.execute();
        assertEquals(1, set.size());
        assertEquals(account.getPassword(), ((GDataAccount) set.next())
                .getPassword());
        account = new GDataAccount();
        account.setName("simon");

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        container.close();
        container = getContainer();
        q = container.query();
        q.constrain(GDataAccount.class);
        q.descend("name").constrain(account.getName());
        set = q.execute();
        assertEquals(1, set.size());
        assertEquals(account.getPassword(), ((GDataAccount) set.next())
                .getPassword());
        container.close();
    }

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        storage.storeAccount(account);
        ObjectContainer container = getContainer();
        Query q = container.query();
        q.constrain(GDataAccount.class);
        q.descend("name").constrain(account.getName());
        ObjectSet set = q.execute();
        assertEquals(1, set.size());


        storage.deleteAccount(account.getName());
        container.close();
        container = getContainer();

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        container.close();
        container = getContainer();
        q = container.query();
        q.constrain(GDataAccount.class);
        q.descend("name").constrain(account.getName());
        set = q.execute();
        assertEquals(0, set.size());
        try {
            storage.deleteAccount("notstored");
            fail("account not stored");
        } catch (Exception e) {

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        container = getContainer();
        Query query = container.query();
        query.constrain(ServerBaseFeed.class);
        query.descend("feed").descend("id").constrain(FEEDID);
        ObjectSet set = query.execute();
        assertEquals(1, set.size());


        assertEquals(feed.getId(), ((ServerBaseFeed) set.next()).getId());
        container.close();

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