On Tue, Jul 21, 2009 at 12:42 AM, Dan Allen <span dir="ltr"><<a href="mailto:dan.j.allen@gmail.com">dan.j.allen@gmail.com</a>></span> wrote:<br><div class="gmail_quote"><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
One of the questions that is often raised when discussing Java EE integration (JSR-299 and EJB) is how to get a reference to a container-managed resource from within a JSF listener (e.g., EJB session bean, BeanManager, EntityManager). While Java EE certainly provides mechanisms to lookup up a resource, such as through JNDI, I think we need to restate the question at hand. Why is it that JSF listeners don't support Java EE resource injection like managed beans. Requiring this functionality in a Java EE environment would go a long way towards making JSF extensions (such as Seam or ADF) portable and generally make the effort of integration w/ container-managed resources easier.<br>
<br>With that said, I would like to propose for the next rev of the JSF specification that listeners, in addition to managed beans, support container injection and life-cycle callbacks when JSF is run in a Java EE environment (the rule for servlet containers would parallel that of managed beans today).<br>
<br>Listeners include:<br><br>PhaseListener<br>SystemEventListener<br>BehaviorListener? (not sure)</blockquote><div><br>So the easiest way to do this would be to accept an expression any time a listener is declared, correct? This is possible today with the <f:view> tag for PhaseListeners, but not in faces-config.xml. In the other cases, we do have support for expressions. <br>
</div><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"><br><br>-Dan<br clear="all"><font color="#888888"><br>-- <br>Dan Allen<br>Senior Software Engineer, Red Hat | Author of Seam in Action<br>
Registered Linux User #231597<br>
<br><a href="http://mojavelinux.com" target="_blank">http://mojavelinuxcom</a><br><a href="http://mojavelinux.com/seaminaction" target="_blank">http://mojavelinux.com/seaminaction</a><br><a href="http://in.relationto/Bloggers/Dan" target="_blank">http://in.relation.to/Bloggers/Dan</a><br>
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