Variants of Product Entity

    private void persistTransientBeanWithId() {
        // Get a non managed (Transient) product object - Having id set
        Product transientProductWithId = ProductMother.getBasicProduct();
        dao.update(transientProductWithId, "New Brand Name");
    }

    private void persistTransientBeanWithoutId() {
        // Get a non managed (Transient) product object - And reset ID to null
        // This will result in creation of product
        Product transientProductWithoutId = ProductMother.getBasicProduct();
        transientProductWithoutId.setId(null);
        dao.update(transientProductWithoutId, "New Brand Name");
    }

    private void persistPersistentBean() {
        // Will internally get a managed (Persistent) product object
        // This will have NO AFFECT on the object at all
        dao.update(1l, "New Brand Name");
    }