As the title says, is it possible to get hands on the XML representation of a fluent nhibernate mapping? And if it is, can this be used directly with Hibernate for Java?
There's a section in the Fluent NHibernate wiki covering the export of the xml mapping. Section at the bottom headed 'Exporting hbm.xml mappings'
Have not tried it but don't see any reason why the mapping file shouldn't work in Hibernate with minimal modification
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I would need to use idbag in fluent mappings. Is it supported in fluentnhibernet?
They seemed to just have ignored it. I cannot find anything in their documentation.
There is a similar question which proposes the use of XML
It doesn't appear in the Fluent mapping
It doesn't appear it the Current NHibernate Features Not Supported In Fluent
In Entity Framework it is possible to combine fluent configuration with attribute-based configuration.
As in NHibernate both configuration approaches are different projects I guess they're not combineable, however, maybe I'm misunderstood.
Is it possible to combine both approaches in NHibernate or not?
No, you have to choose what type of configuration (or mapping) you want to do. Fluent NHibernate, Xml, Attributies. You do not need to create your configuration in a separated project, but it is a good pratice to keep the single responsability for each part of your code. I really recommend you mapping using the fluent NHibernate.
This article show each type of mapping:
http://www.davesquared.net/2008/09/nhibernate-mappings-using-xml.html
I want to use Fluent NHibernate with NHibernate. But I want to find out whether Fluent NHibernate support all mappings from NHbernate. Or is it better to stick with NHibernate?
Fluent NHibernate supports automappings, standard nhibernate xml mappings (hbm) and of course Fluent style mappings. You can mix and match any of those mappings with Fluent NHibernate.
Fluent does not support the new mapping by code style introduced in version 3.2 (they're really different animals) of NHibernate but I'm not sure that this is really an issue. Personally I would recommend using Fluent at this point because there is far more documentation and the user base is larger than mapping by code.
Fluent NHibernate is fairly easy to use and definitely has it's advantages over xml style (hbm) mappings. You can read about this more on the Fluent Wiki
just FYI; I tried using standard hbm.xml for mapping "many-to-any" which is currently not supported by fluent nhibernate;
tried both Configuration.AddXmlFile and HbmMappings
both still failed with error message saying invalid properties "many to any"
Is it possible to use NHibernate XML mapping files instead of Fluent NHibernate in S#arp Architecture framework?
Yes you can. Take a look at the Northwind sample app's NHibernate.config (the commented mapping element and the related comments)
I'm looking for a NHibernate Mapping generator which could generate a mapping file (hbm) and SQL Script from a C# class. I've found generators for the other way around, but not for this case.
Can you guys point me to nice generator?
Thanks a lot!
With Fluent NHiberate you can do without mapping files. In the instances where the automapping doesn't work, you can override.
This post discusses schema generation
Fluent Nhibernate Schema Generation
The newest, fastest and most extensible way to configure NHibernate is ConfORM.
You don't need to generate xml files (although you can do so if you want). It's an order of magnitude faster than Fluent NHibernate and, overall, less work.
For some examples, read Fabio Maulo's posts.