<?xml version="1.0" encoding="utf-8" ?>
<hibernate-mapping xmlns="urn:nhibernate-mapping-2.2"
                   assembly="Pharm.Core"
                   namespace="Pharm.Core.Domain">
  <class name="PrepBrand, Pharm.Core" table='Prep_brand'>
    <id name="Id" unsaved-value="0" type="int">
      <column name="id" not-null="true"/>
      <generator class="native"/>
    </id>
    <property name="Name">
      <column name="Name" not-null="true" />
    </property>
  </class>
</hibernate-mapping>

[Test]
public void TestRepo()
{
            var brand = new PrepBrand {Id = 41, Name = "Test"};
            var t = new List<DicDomain> {brand};
            using (var repo = new DicDomainRepository())
                repo.SaveAll(t);
}
public void SaveAll(List<DicDomain> dicDomains)
{
         using (ITransaction tx = NHibernateSession.BeginTransaction())
         {
                    foreach (DicDomain price in dicDomains)
                        NHibernateSession.SaveOrUpdate(price);
                    tx.Commit();
         }
 }