Can you add onto an Action dynamically?

I want to be able to add to my Mappings Action dynamically, so that when I run a particular integration test I can export the mappings to an xml file.

So I have the following setup for my Mappings:

private static Action<MappingConfiguration> _mappings;

public static Action<MappingConfiguration> Mappings 
{ 
    get { return _mappings ?? (_mappings = CreateFluentMappings()); } 
}

private static Action<MappingConfiguration> CreateFluentMappings()
{
    return m => m.FluentMappings.AddFromAssemblyOf<UserMapping>();
}

and when I build my session I do this:

return Fluently.Configure()
           .Database(
                MsSqlConfiguration.MsSql2008
                    .ConnectionString(c => c.FromAppSetting("connstring"))
                    .ProxyFactoryFactory<ProxyFactoryFactory>()
                    .ShowSql()
            )
            .Mappings(Mappings);

and I have a test I'm trying to build that will export the xml file:

[Test]
public void SessionFactory_WhenGetting_CanOutputToXml()
{
    //arrange
    var mappings = SessionFactoryBuilder.Mappings;

    //act
    //I want to add an extra line to the action here to tell it to Export to XML
    //??????
    mappings(m => m.FluentMappings.ExportTo(@"c:\Mappings\myMappings.xml"));

    //assert
    Assert.That(File.Exists(@"c:\Mappings\myMappings.xml"), Is.True);
}

My problem is in my act part of my test, I don't know what syntax to use to append an additional piece of code into the action.

Is this possible or do I have to create a completely new action?

ansaurus

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Can you add onto an Action dynamically?

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