[cdi-dev] [JBoss JIRA] Created: (CDI-148) Conversation Scope should be as available as Request Scope (Ubuquitous), and not tied to JSF

Lincoln Baxter III (JIRA) jira-events at lists.jboss.org
Fri Aug 5 11:47:32 EDT 2011

Conversation Scope should be as available as Request Scope (Ubuquitous), and not tied to JSF

                 Key: CDI-148
                 URL: https://issues.jboss.org/browse/CDI-148
             Project: CDI Specification Issues
          Issue Type: Bug
          Components: Contexts
    Affects Versions: 1.0
            Reporter: Lincoln Baxter III

In CDI 1.0, the Conversation Scope has extremely limited availability. It is accessible from *after* RESTORE_VIEW phase in JSF, to the end of the Response, but this is extremely limiting, and in fact does not even address all use-cases within JSF. 

For instance:
 * User has custom PhaseListener for *Before* RESTORE_VIEW phase, or user has custom PhaseListener that invokes before ConversationPhaseListener.
 * In said PhaseListener, user attempts to access a ConversationScoped bean.
 * ContextNotActiveException results, even though there may be a valid CID in the Request URL

Example 2:
 * User attempts to access ConversationScope outside of the JSF lifecycle (Via EL in a Servlet or ServletFilter, for instance.)
 * ContextNotActiveException results, this just doesn't work!

There is no reason why the ConversationScope should be any less available than the RequestScope, since both depend on the same underlying context objects. (Request, Session, etc)

ConversationScope should be ubiquitous in the Servlet Container Request/Response lifecycle. This will greatly improve ability to use CDI in view/web frameworks other than JSF.

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