OK, so I had a great idea today. If we can successfully implement this as a portable extension, it should form the foundation of a lot of stuff we implement in Seam3 (for example, Drools, JMS and JPA integration). Take a look at this: http://www.seamframework.org/Weld/PortableExtensionsPackage#H-GenericBeans Would someone please look into exactly how hard this is to implement on the CDI 1.0 SPI? I think it's possible, though we might end up with some annoying limitations. I think this can *really* clean up the configuration of things like persistence contexts, JMS sessions, Drools rule bases, etc. Now, instead of several entries in an XML file, the user just writes a single producer field declaration. It also dramatically simplifies the implementation of this kind of PE. -- Gavin King gavin.king(a)gmail.com http://in.relation.to/Bloggers/Gavin http://hibernate.org http://seamframework.org