Fluent NHibernate AutoMapping

mapping.cs

        static void TreatConfiguration(NHibernate.Cfg.Configuration configuration)
        {

            var update = new SchemaUpdate(configuration);
            update.Execute(false, true);

        }

        private void Configure()
        {
            var mappings = AutoMap.AssemblyOf<Person>()
                .Where(x => x == typeof (Person))
                .Conventions.Add
                (
                    ConventionBuilder.Id.Always(x=>x.GeneratedBy.GuidComb()),
                    ConventionBuilder.HasMany.Always(x => x.Cascade.AllDeleteOrphan()),
                    //Table.Is(o => Inflector.Pluralize(o.EntityType.Name)),
                    PrimaryKey.Name.Is(o => "Id"),
                    ForeignKey.EndsWith("Id"),
                    DefaultCascade.All()
                );
            var sessionFactory = Fluently.Configure().Database(MsSqlConfiguration.MsSql2008.ConnectionString("server=localhost;database=nh_selecttree;user=sa;password=sql1234"))
                   .Mappings(val => val.AutoMappings.Add(mappings))
                  .ExposeConfiguration(TreatConfiguration)
                  .BuildSessionFactory();
            return sessionFactory;
        }
        
        
      public class Person
      {
          private readonly Iesi.Collections.Generic.ISet<Person> _persons = new Iesi.Collections.Generic.HashedSet<Person>();
  
          public virtual IEnumerable<Person> Persons
          {
              get { return _persons; }
          }
  
          public virtual Guid ID { get; set; }
          public virtual string Name { get; set; }
      }