Are there any Prism “Post-build” Event or method while using MEF?

Question

I have 4+ imported properties in a class and some code that needs at least 4 properties to execute

Are there any PRISM or MEF events that would help instead of putting notify on each setter and then checking for nulls ?

Answer 1

You can have your class implement the IPartImportsSatisfiedNotification interface. Then the OnImportsSatisfied method will be called once all the imports have been satisfied. Put your "post-build" code in this method.

This way you know all your parts have been imported and that it is safe to use them.

Answer 2

You can use an Aspect Orientated Programming language, such as Spec#, see http://specsharp.codeplex.com/

This will allow you to place an attribute on the class, and spec# will add the notify property changed as a post build event.