ArgumentOutOfRangeException：索引超出范围

每当我使用时，我都会收到这个奇怪的 ArgumentOutOfRangeException PersitenceSpecification 类用于验证具有 对值对象的引用。

    public class CatalogItem : DomainEntity
    {
        internal virtual Manufacturer Manufacturer { get; private
set; }
        internal virtual String Name { get; private set; }

        protected CatalogItem()
        {}

        public CatalogItem(String name, String manufacturer)
        {
            Name = name;
            Manufacturer = new Manufacturer(manufacturer);
        }
    }

    public class CatalogItemMapping : ClassMap<CatalogItem>
    {
        public CatalogItemMapping()
        {
            Id(catalogItem => catalogItem.Id);

            Component<Manufacturer>(category => category.Manufacturer,
                                    m => m.Map(manufacturer =>
manufacturer.Name));

            Map(catalogItem => catalogItem.Name);
            Map(Reveal.Property<CatalogItem>("Price"));
        }
    }

    [TestFixture]
    public class When_verifying_the_class_mapping_of_a_catalog_item
        : NHibernateSpecification
    {
        [Test]
        public void Then_a_catalog_object_should_be_persistable()
        {
            new PersistenceSpecification<CatalogItem>(Session)
                .VerifyTheMappings();
        }
    }

    [TestFixture]
    public class NHibernateSpecification
        : Specification
    {
        protected ISession Session { get; private set; }

        protected override void Establish_context()
        {
            var configuration = new SQLiteConfiguration()
                .InMemory()
                .ShowSql()
                .ToProperties();

            var sessionSource = new SessionSource(configuration, new
RetailerPersistenceModel());
            Session = sessionSource.CreateSession();

            sessionSource.BuildSchema(Session);
            ProvideInitialData(Session);

            Session.Flush();
            Session.Clear();
        }

        protected override void Dispose_context()
        {
            Session.Dispose();
            Session = null;
        }

        protected virtual void ProvideInitialData(ISession session)
        {}
    }

这是我收到的错误：

测试用例 'Then_a_catalog_object_should_be_persistable' 未执行： System.ArgumentOutOfRangeException： 指数超出范围。必须是 非负且小于 集合。参数名称：索引 在 System.ThrowHelper.ThrowArgumentOutOfRangeException （ExceptionArgument 参数， 异常资源（ExceptionResource） 在 System.ThrowHelper.ThrowArgumentOutOfRangeException() 在 System.Collections.Generic.List1.get_Item(Int32 index) at System.Data.SQLite.SQLiteParameterCollection.GetParameter(Int32 index) at System.Data.Common.DbParameterCollection.System.Collections.IList.get_Item (Int32 index) at NHibernate.Type.GuidType.Set(IDbCommand cmd, Object value, Int32 index) at NHibernate.Type.NullableType.NullSafeSet(IDbCommand cmd, Object value, Int32 index) at NHibernate.Type.NullableType.NullSafeSet(IDbCommand st, Object value, Int32 index, ISessionImplementor session) at NHibernate.Persister.Entity.AbstractEntityPersister.Dehydrate (Object id, Object[] fields, Object rowId, Boolean[] includeProperty, Boolean[][] includeColumns, Int32 table, IDbCommand statement, ISessionImplementor session, Int32 index) at NHibernate.Persister.Entity.AbstractEntityPersister.Insert(Object id, Object[] fields, Boolean[] notNull, Int32 j, SqlCommandInfo sql, Object obj, ISessionImplementor session) at NHibernate.Persister.Entity.AbstractEntityPersister.Insert(Object id, Object[] fields, Object obj, ISessionImplementor session) at NHibernate.Action.EntityInsertAction.Execute() at NHibernate.Engine.ActionQueue.Execute(IExecutable executable) at NHibernate.Engine.ActionQueue.ExecuteActions(IList list) at NHibernate.Engine.ActionQueue.ExecuteActions() at NHibernate.Event.Default.AbstractFlushingEventListener.PerformExecutions (IEventSource session) at NHibernate.Event.Default.DefaultFlushEventListener.OnFlush (FlushEvent event) at NHibernate.Impl.SessionImpl.Flush() at NHibernate.Transaction.AdoTransaction.Commit() d:\Builds\FluentNH\src\FluentNHibernate\Testing \PersistenceSpecification.cs(127,0): at FluentNHibernate.Testing.PersistenceSpecification1.事务保存 （对象属性值） d:\Builds\FluentNH\src\FluentNHibernate\Testing \持久性规范.cs(105,0): 在 FluentNHibernate.Testing.PersistenceSpecification`1.VerifyTheMappings () C:\Source\SupplyChain\Tests\Retailer.IntegrationTests\Mappings \CatalogItemMappingSpecifications.cs(14,0)： 在 SupplyChain.Retailer.IntegrationTests.Mappings.When_verifying_the_class_mapping_of_a_catalog_item.Then_a_catalog_object_should_be_persistable ()

很抱歉这篇文章很长，但这让我忙了好几天 现在几个小时。这可能不是 FNH 造成的，因为我发现了这张 JIRA 票证 NH 本身提到了类似的事情：

http://forum.hibernate.org/viewtopic.php?p=2395409 http://forum.hibernate.org/viewtopic.php?p=2395409

我仍然希望我的代码中做错了什么:-)。任何 想法？

提前致谢

我找到了这个问题的解决方案，这是我自己的结果 首先是愚蠢。一旦我明白了，一切就都清楚了 从流畅的 NH 映射生成 hbm 文件。

<class name="CatalogItem" table="`CatalogItem`" xmlns="urn:nhibernate-
mapping-2.2" optimistic-lock="version">
    ...

    <property name="Name" length="100" type="String">
      <column name="Name" />
    </property>

    ...

    <component name="Manufacturer" insert="false" update="true">
      <property name="Name" length="100" type="String">
        <column name="Name" />
      </property>
    </component>
  </class>

请注意，Name 属性的列和 制造商组件都映射到同一列。这就是为什么 这导致了 ArgumentOutOfRangeException，因为有 参数多于列名。我解决了这个问题 明确指定组件映射的列名称：

组件（catalogItem => CatalogItem.Manufacturer， m => m.Map(制造商 => 制造商.名称, “制造商”））;

又一个教训。