从NHibernate二级缓存中删除对象

<cache name="Person" 
       region="MyRegion" 
       usage="read-write" 
       />

ISession session = SessionFactory.OpenSession();

Person person = (Person)session.Get("Person", 1);

session.Evict("Person", person.Id);

session.Close();

ISession session = SessionFactory.OpenSession();

IList<Person> persons = session.QueryOver<Person>().List();

session.EvictCollection("Person");

session.Close();

ISession session = SessionFactory.OpenSession();

IList<Person> persons = session.QueryOver<Person>().List();

foreach (Person person in persons)
{
    session.Delete(person);
}

session.Flush();

session.Close();