NHibernate组件映射:操作数类型冲突:bigint与时间不兼容

Question

我正在编写一个通过代码使用 NHibernate 映射的应用程序。当我将 TimeSpan 映射为实体的属性时，TimeSpan 已正确映射。

但是，如果我将 TimeSpan 放在组件映射(值对象)中，我会得到一个异常">操作数类型冲突：bigint 与时间不兼容" - 即使我确保使用 TimeSpan 映射映射 TimeSpan。

以下代码将正确保存时间跨度(例如'1753-01-01T08：00：00')

public class MyEntity
{
public virtual int Id { get; protected set; }
public virtual ISet<AnotherEntity> OtherEntities { get; protected set; }
}
public class AnotherEntity
{
public virtual int Id { get; protected set; }
public virtual TimeSpan MyTimeSpan { get; protected set; }
}
public class MyEntityMap : ClassMapping<MyEntity>
{
public MyEntityMap()
{
Table("MyEntityTable");
Id(x => x.Id, map =>
{
map.Column("Id");
});
Set(x => x.OtherEntities, c =>
{
c.Table("OtherEntityTable");
c.Inverse(true);
c.Key(k => k.Column("MyEntityId"));
}, r => r.OneToMany(m =>
{
m.NotFound(NotFoundMode.Exception);
m.Class(typeof(AnotherEntity));
}));
}
}
public class AnotherEntityMap : ClassMapping<AnotherEntity>
{
public AnotherEntityMap()
{
Table("AnotherEntityTable");
Id(x => x.Id, map =>
{
map.Column("AnotherEntityId");
});
Property(x => x.MyTimeSpan, m => m.Type<TimeAsTimeSpanType>());
}
}

但是，以下代码将尝试将 TimeSpan 另存为 int(例如 2880000000000)并引发异常。(同样，当它尝试冻结嵌套值对象时，会引发异常。

public class MyEntity
{
public virtual int Id { get; protected set; }
public virtual MyValueObject MyValueObject { get; protected set; }
}
public class MyValueObject
{
public virtual ISet<NestedValueObject> NestedValueObjects { get; protected set; }
}
public class NestedValueObject
{
public virtual TimeSpan MyTimeSpan { get; protected set; }
}
public class MyEntityMap : ClassMapping<MyEntity>
{
public MyEntityMap()
{
Table("MyEntityTable");
Id(x => x.Id, map =>
{
map.Column("Id");
});
Component(x => x.MyValueObject, c =>
{
c.Set(x => x.NestedValueObjects, map =>
{
map.Table("NestedValueObjects");
map.Key(k => k.Column("MyEntityId"));
}, r => r.Component(n =>
{
n.Property(x => x.MyTimeSpan, m => m.Type<TimeAsTimeSpanType>());
}));
});
}
}

映射是否有错误？还是通过代码进行 NHibernate 映射存在错误？

Answer 1

我假设这是通过代码进行 NHibernate 映射的错误，并引发了一个错误 NH-4038。