Hello!

I would like to pass NHibernate domain models in and out an ASP.NET WebService.

How do I for instance marshall collections :?:

Should I do something in order to prevent excessive unnecessary database work :?:

Is there some kind of documentation documenting this, I suppose, ordinary situation :?:


Best regards,

Henrik Dahl

To pass domain model in and out an ASP.NET WebService, you just need to put the [Serializable] attribute.

I don't see any NHibernate-related problem with this...

Why should I actually apply the [Serializable] attribute? Isn't the [Serializable] attribute only meant for enabling binary serialization where we here talk about serialization using XmlSerializer during the process of marhsalling in/out the WebService?

I must say that I actually have a problem with marshalling a list. As far as I understand my domain model should use the type "IList". The problem just is, that this leads to deserialization as XmlElement(s) instead of instances of the class the objects in the list were at the client side. Do you know if there is some special issue regarding marshalling IList properties?


A meta question:
I may see you've moved my request to the ASP.NET sub forum. ASP.NET may be either a WebForms or a WebService (or an explicit handler if you do more imperative programming). In the overview of forums on the main forum page it's emphasized "Web Form" for the ASP.NET. I obviously assumed this means that the particular sub forum is only meant for Web Forms.

Best regards,

Henrik Dahl

I'm the one who wrote those descriptions and I'm not familiar with ASP.NET world, so I'll reword this forum description if you can provide a better one. I think it's best to keep all ASP.NET-related topics in one forum, there aren't going to be a lot of them anyway.

It's impossible to pass Domain Model. Domain objects are difficult related and it's impossible to serialize it to XML (see <many-to-one> for ex.).
Other way - use XmlIgnore, but it's wrong architecture (IMHO).

Application server for my app implemented using WSE 2.0 and I am using Data Transfer Objects for passing data between tiers. You can reed about it here: www.martinfowler.com. (or search for "Patterns of enterprise application architecture" in ed2k)

DTO deploying on client and server. To make it Domain model independent you must make Assemblers which only copying properties from domain objects to DTO properties.

Best regards.