[jboss-user] [JBoss Seam] - Re: Injection woes

I really have gone through the Seam Reference, but the @Unwrap and @Factory methods still confuse me. I'm just not clear on what they do. I think that @Factory is just an initializer method so that the first time an instance variable is accessed and is null, if there is a @Factory method it will be called. (is that right?) @Unwrap baffles me, though. The description in the reference implies that if I have an @Unwrap method in a BlogService component named "blog", then whenever I reference "blog" I'm actually getting an instance of a Blog instead (I'm using an example from the tutorial). In a later example, the @Unwrap method returns a list of BlogEntity objects, which is even stranger. Tell me if I have this right: the "component manager pattern" is being used in the Blog example as a way to magically initialize data without explicitly doing so. So, if I reference the component "blog", the BlogServer actually fetches the "real" component from the database and that is what is returned. Similarly with the search: rather than the client getting a reference to the SearchService, it's actually getting a reference to the search results List. Hmm, I think I just answered all of my questions about that. In my original example, I think I will edit those classes that are within my project to make them Seam objects (@Name) and just move on with my life, and those outside of my project I may just subclass since they're not entity beans. Or maybe I'll give up on my quest for the @Singleton annotation (which I still say would be really useful) and just use MyClass.getInstance().whatever(). I was mostly trying to see whether the injection hammer would be a good tool for banging the singleton nail (which turned out to be a staple and was just mangled). However, the @Unwrap annotation is pretty slick! Somehow I passed right over it on my initial pass through the tutorial. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3965493#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...