我正在迁移这样的应用程序:

Vehicle v = null;
using (ISession session = MyNHibernateSession())
{
    v = Vehicle.FindById(1);
}

using (ISession session = MyNHibernateSession())
{
    // somwwhere into these4 lines Vehicle comes Finded
    DoSomething();
    DoSomething2();
    DoSomething3();
    DoSomething4();
    DoSomething5();
    DoSomething6();

    // if i do this i get an error "another object with the same id etc etc etc
    session.Update(v);
}

我不会做这样的事情:
    session.EvictAllByType(typeof(Vehicle));

可能吗?如何?,
谢谢

最佳答案

这个问题可能很老,但是我在这里寻找如何做的时候就结束了。所以这就是我最终做的方式:

    public static void EvictAll<T>(this ISession session, Predicate<T> predicate = null)
    {
        if (predicate == null)
            predicate = x => true;
        foreach (var entity in session.CachedEntities<T>().Where(predicate.Invoke).ToArray())
            session.Evict(entity);
    }

    public static IEnumerable<T> CachedEntities<T>(this ISession session)
    {
        var sessionImplementation = session.GetSessionImplementation();
        var entities = sessionImplementation.PersistenceContext.EntityEntries.Keys.OfType<T>();
        return entities;
    }

09-29 19:50
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