Gachi - "ORM" for Google App Engine

I've been working on a framework for Google App Engine, the Java version.

Gachi as I've named it, is a tiny framework where I've taken some ideas from QI4J and hence domain driven development for storing entities (POJO's) in the Google App Engine Datastore using the low-level API.

This is one of my testcases:

   @Test
   public void testCreateWishlistAndAddRecipient() {
       UnitOfWork uow = new GAEUnitOfWork();

       Date created = new Date();

       Wishlist wishlist = uow.newEntity(Wishlist.class);
       wishlist.title().set("Wishlist for christmas 2009");
       wishlist.comment().set("No soft presents");
       wishlist.created().set(created);

       uow.complete();

       uow = new GAEUnitOfWork();
       wishlist = uow.get(wishlist.getEntityReference());
       assertEquals("Wishlist for christmas 2009", wishlist.title().get());
       assertEquals("No soft presents", wishlist.comment().get());
       assertEquals(created, wishlist.created().get());

       Recipient recipient1 = uow.newEntity(wishlist, Recipient.class);
       recipient1.name().set("Test Person #1");
       recipient1.email().set(new Email("testperson1@email.com"));

       Recipient recipient2 = uow.newEntity(wishlist, Recipient.class);
       recipient2.name().set("Test Person #2");
       recipient2.email().set(new Email("testperson2@email.com"));

       wishlist.recipients().add(recipient1);
       wishlist.recipients().add(recipient2);

       uow.complete();

       uow = new GAEUnitOfWork();
       wishlist = uow.get(wishlist.getEntityReference());
       ManyAssociation recipients = wishlist.recipients();
       assertEquals(2, recipients.getCount());
       assertEquals("Test Person #1", recipients.get(0).name().get());
       assertEquals("testperson1@email.com", recipients.get(0).email().get().getEmail());
       assertEquals("Test Person #2", recipients.get(1).name().get());
       assertEquals("testperson2@email.com", recipients.get(1).email().get().getEmail());
   }

... more to come