仅适用于SaveOrUpdate和Merge的NHibernate级联约定

Question

我想为NHiberate配置一个约定，允许对SaveOrUpdate和Merge进行级联，但不允许删除。 我找不到如何做到这一点，因为Cascade.SaveOrUpdate（）或Cascade.Merge（）返回void。并且调用一种方法取消了先例。

以下是我的试验：

1）级联将用于SaveUpdate：

 public class CascadeAllConvention : IHasOneConvention, IHasManyConvention, IReferenceConvention
    {
        public void Apply(IOneToOneInstance instance)
        {
            instance.Cascade.Merge();
            instance.Cascade.SaveUpdate();
        }

        public void Apply(IOneToManyCollectionInstance instance)
        {
            instance.Cascade.Merge();
            instance.Cascade.SaveUpdate();

        }

        public void Apply(IManyToOneInstance instance)
        {
            instance.Cascade.Merge();
            instance.Cascade.SaveUpdate();
        }
    }

2）级联将用于合并：

 public class CascadeAllConvention : IHasOneConvention, IHasManyConvention, IReferenceConvention
    {
        public void Apply(IOneToOneInstance instance)
        {
            instance.Cascade.SaveUpdate();
            instance.Cascade.Merge();
        }

        public void Apply(IOneToManyCollectionInstance instance)
        {
            instance.Cascade.SaveUpdate();
            instance.Cascade.Merge();

        }

        public void Apply(IManyToOneInstance instance)
        {
            instance.Cascade.SaveUpdate();
            instance.Cascade.Merge();
        }
    }

3）级联将被停用：

 public class CascadeAllConvention : IHasOneConvention, IHasManyConvention, IReferenceConvention
    {
        public void Apply(IOneToOneInstance instance)
        {
            instance.Cascade.All();
            instance.Cascade.Not.Delete();
        }

        public void Apply(IOneToManyCollectionInstance instance)
        {
            instance.Cascade.All();
            instance.Cascade.Not.Delete();

        }

        public void Apply(IManyToOneInstance instance)
        {
            instance.Cascade.All();
            instance.Cascade.Not.Delete();
        }
    }