R – Alternatives for NHibernate mappings

fluent-nhibernatenhibernatenhibernate-mapping

Are there any good alternative to NHibernate's xml mappings?

I have seen Fluent. All I look for is high maintainability.

UPDATE : I would like to know the performance issues related with using fluent because I guess it is going to create xml mappings from the class (which can be time consuming – my guess)

Thanks

Best Answer

Fluent, but then again I would say that.

There's a minor performance impact by using it, but it's got nothing to do with XML generation*. NHibernate has a start-up time of it's own, and fluent only adds a fraction onto that; it's not even worth thinking about unless you're throwing around thousands of mappings (and more specifically, assemblies).

* Fluent's performance impact is actually from calling Assembly.GetTypes() to find any mappings in your assemblies.

Related Solutions

C# – Programming to interfaces while mapping with Fluent NHibernate

I realise this is a diversion, and not an answer to your question (although I think mookid has got that covered).

You should really evaluate whether interfaces on your domain entities are actually providing anything of worth; it's rare to find a situation where you actually need to do this.

For example: How is relying on IMessage any less coupled than relying on Message, when they both (almost) undoubtedly share identical signatures? You shouldn't need to mock an entity, because it's rare that it has enough behavior to require being mocked.

.net – Mapping enum with fluent nhibernate

The following apparently no longer works https://stackoverflow.com/a/503327/189412

How about just doing this:

public AgencyMap() {
    Id(o => o.Id);
    Map(o => o.AccountHolderName);
    Map(o => o.AccountType).CustomType<AccountType>();
}

The custom type handles everything :)

Best Answer

Related Solutions

C# – Programming to interfaces while mapping with Fluent NHibernate

.net – Mapping enum with fluent nhibernate

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