interesting... I assumed that a default order (PK) would be used if no
other sort was applied. I will add sorting to the tests above and see
how that effects it.
On Oct 21, 9:23 pm, "Ayende Rahien" <[EMAIL PROTECTED]> wrote:
> Unless you specify order, the DB is free to choose whatever order it likes.Let
> us take this:
>
> select top 10 * from Foo
>
> The DB is free to return completely different result sets for this query if
> you execute it twice
>
> On Wed, Oct 22, 2008 at 3:16 AM, Jason Meckley <[EMAIL PROTECTED]>wrote:
>
>
>
> > I don't follow. What do you mean "orders may be indeterministic"?
>
> > On Oct 21, 5:02 pm, "Tuna Toksöz" <[EMAIL PROTECTED]> wrote:
> > > The orders may be indeterministic
>
> > > On Tue, Oct 21, 2008 at 11:58 PM, Jason Meckley <[EMAIL PROTECTED]
> > >wrote:
>
> > > > I'm having a difficult time understanding page, specifically
> > > > SetFirstResult() and SetMaxResults()
>
> > > > from what I read on different posts SetFirstResult is the zero-based
> > > > index of the record you want to start with. SetMaxResults is the
> > > > number of records you want to return.
>
> > > > if this is correct then why do tests:
> > > > Should_get_foos_21_through_30
> > > > Should_get_foos_31_through_40
> > > > fail?
>
> > > > //Foo has 1 property Id which is readonly. The id is assigned via
> > > > ctor.
>
> > > > namespace Paging.Spike.Core.Test
> > > > {
> > > > [TestFixture]
> > > > public class PagingWithNhibernateSpec
> > > > {
> > > > private ISessionFactory factory;
> > > > private Configuration cfg;
> > > > private ISession session;
> > > > private const int PAGE_SIZE = 10;
>
> > > > [TestFixtureSetUp]
> > > > public void TestFixtureSetup()
> > > > {
> > > > cfg = new Configuration().Configure();
> > > > factory = cfg.BuildSessionFactory();
> > > > }
>
> > > > [TestFixtureTearDown]
> > > > public void TestFixtureTeardown()
> > > > {
> > > > factory.Dispose();
> > > > }
>
> > > > [SetUp]
> > > > public void SetUp()
> > > > {
> > > > session = factory.OpenSession();
> > > > new SchemaExport(cfg).Execute(false, true, false, true,
> > > > session.Connection, null);
> > > > using(ITransaction transaction =
> > > > session.BeginTransaction())
> > > > {
> > > > for (int i = 1; i <= 100; i++)
> > > > session.Save(new Foo(i));
> > > > transaction.Commit();
> > > > }
> > > > }
>
> > > > [TearDown]
> > > > public void TearDown()
> > > > {
> > > > session.Dispose();
> > > > }
>
> > > > [Test]
> > > > public void Should_get_foos_01_through_10()
> > > > {
> > > > ValidateIdsStartingWithId(1,
> > > > GetResultsStartingAtIndex(0));
> > > > }
>
> > > > [Test]
> > > > public void Should_get_foos_11_through_20()
> > > > {
> > > > ValidateIdsStartingWithId(11,
> > > > GetResultsStartingAtIndex(10));
> > > > }
>
> > > > [Test]
> > > > public void Should_get_foos_21_through_30()
> > > > {
> > > > ValidateIdsStartingWithId(21,
> > > > GetResultsStartingAtIndex(20));
> > > > }
>
> > > > [Test]
> > > > public void Should_get_foos_31_through_40()
> > > > {
> > > > ValidateIdsStartingWithId(31,
> > > > GetResultsStartingAtIndex(30));
> > > > }
>
> > > > private IList<Foo> GetResultsStartingAtIndex(int firstResult)
> > > > {
> > > > return session
> > > > .CreateCriteria(typeof (Foo))
> > > > .SetFirstResult(firstResult)
> > > > .SetMaxResults(PAGE_SIZE)
> > > > .List<Foo>();
> > > > }
>
> > > > private static void ValidateIdsStartingWithId(int id,
> > > > ICollection<Foo> foos)
> > > > {
> > > > foreach (Foo foo in foos)
> > > > Console.WriteLine(foo);
>
> > > > Assert.AreEqual(PAGE_SIZE, foos.Count);
>
> > > > foreach (Foo foo in foos)
> > > > Assert.AreEqual(id++, foo.Id);
> > > > }
> > > > }
> > > > }
>
> > > --
> > > Tuna Toksöz
>
> > > Typos included to enhance the readers attention!
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