Derik Whittaker

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Notes from upgrading from StructureMap 2.4.9 to StructureMap 2.5.0

Tonight I updated the Dimecasts codebase from the 2.4.9 version of StructureMap to 2.5.0 and ran into few scenarios where some 'hefty' changes were required.  I thought I would share the 2 major areas that needed change.

Adding named concrete instances for a given interface:

Was

AddInstanceOf<IAddin>().UsingConcreteType<DotNetKicksAddin>().WithName("DotNetKicks");

Is

ForRequestedType().AddInstances( x =>
                                    {
                                        x.OfConcreteType().WithName( "DotNetKicks" );
                                        x.OfConcreteType().WithName( "DZone" );
                                        x.OfConcreteType().WithName( "Digg" );
                                        x.OfConcreteType().WithName( "ShareThis" );
                                    }
                );

 

Registering Registry's at application startup:

Was

StructureMapConfiguration.AddRegistry( new IoCWebRegistration() );

Is

ObjectFactory.Initialize( scanner =>
	{ 
		scanner.AddRegistry( new IoCWebRegistration() );
		scanner.AddRegistry( new IoCDomainRegistration() );
		scanner.AddRegistry( new IoCRepositoryRegistration() );} 
	);


 Till next time,

[----- Remember to check out DimeCasts.Net -----]


Posted 10-21-2008 8:52 PM by Derik Whittaker
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Comments

Steven Harman wrote re: Notes from upgrading from StructureMap 2.4.9 to StructureMap 2.5.0
on 10-21-2008 10:49 PM

Curious,

Why register the registries explicitly as opposed to just scanning for them?

Derik Whittaker wrote re: Notes from upgrading from StructureMap 2.4.9 to StructureMap 2.5.0
on 10-22-2008 6:12 AM

@Steve,

The main reason I do not use the 'scan' feature is because I would rather register everything explicitly.  If all things are equal I always lean towards making code more explicit rather then less.

Also, In the eyes of many there is already enough 'black magic' in IoC containers and having the framework 'just find' registries would be considered 'magic'.  -- Not saying that I believe this is magic, but some do.

With all that being said, you do have a valid point.  I could simply tell SM to scan and be done with it.  That is a valid option.

Nick berardi wrote re: Notes from upgrading from StructureMap 2.4.9 to StructureMap 2.5.0
on 10-22-2008 8:19 AM

Is there any reason they made the interface more verbose?  Or was that you making more explicit code, like you were explaining to Steve?

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