On 20/04/10 02:03, Dan Allen wrote:I don't really see it as part of the API - the user never imports the class, never refers to it in any code. The one place where this might be relevant is the API Javadoc, which the user might possibly be using as their reference. I don't think that Javadoc is the right place for a user to be going though to understand how to use any particular library, especially in our case with the high standards we have for reference documentation.On Mon, Apr 19, 2010 at 11:50 AM, Pete Muir <pmuir@redhat.com> wrote:
Ok. I *think* I might get what you are talking about now - you are concerned because the interceptor has to go into the impl/ jar, not the API jar? And that therefore developers are going to forget that it is actually part of the public API? Or?
Because otherwise, I don't have a clue how putting something in this special intercept package can magically stop people refactoring... If I have
org.jboss.seam.intercept.ConversationBoundaryInterceptor
and someone renames it to
org.jboss.seam.intercept.ConversationEdgeInterceptor
it's just as broken for users...
That's a great point and now I see this so clearly. Interceptors must be considered part of the public API and a stable API is expected not to shift (for backwards compatibility reasons). It's public API because the develop must refer to the interceptors in beans.xml (according to spec, putting workarounds aside).
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If there is a refactoring, it must preserve backwards compatibility through delegation (Seam 2 did this to prevent similar breakage in configuration files).
So I guess the real issue at hand is...the consistent packaging of interceptors is really about making the <interceptors> element as simple as possible by making all the interceptors classes have the same number of package segments. That need may or may not be contrived. I haven't stood in the shoes of the developer yet being required to list out a bunch of interceptor classes.
-Dan
Dan Allen
Senior Software Engineer, Red Hat | Author of Seam in Action
Registered Linux User #231597
http://mojavelinux.com
http://mojavelinux.com/seaminaction
http://www.google.com/profiles/dan.j.allen
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