[ https://issues.jboss.org/browse/CDI-4?page=com.atlassian.jira.plugin.syst... ] Pete Muir commented on CDI-4: ----------------------------- "Let's go back to the Portland Pattern Repository or the GoF Design Patterns book and check the Observer/Observable pattern. The whole idea/mechanism is built based on the paradigma that all the involved parties know NOTHNING about each other. They don't. That's why I'm relying purely on qualifiers for ordering." A magic number based solution introduces tight coupling between observers and is non-type-safe. The approach proposed by Mike does introduce an (optional) level of coupling, but not as strong as magic numbers and is type safe. To interleave an observer in a magic number scheme I must know the magic number of *all* other observers I must come before. To interleave in Mike's scheme I simply need to know the qualifer they are using (which is itself reasonably decoupled from the observer method). In general this notion that a non-strongly-typed link between objects is gives looser coupling inherently is extremely flawed. -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira