Using Seam components remotely...

[bkyrlach]

I was recently tasked with separating the service layer of my seam application with the presentation layer. My first thought was to use the ability of EJB's to have a remote interface, and implement my own Variable Resolver which would allow me to look up Seam components from the Java Naming Directory and return them to the presentation layer.

This, however, results in the following exception...

Caused by: java.lang.IllegalStateException: Attempted to invoke a Seam component outside the context of a web application
 at org.jboss.seam.contexts.Lifecycle.getServletContext(Lifecycle.java:404)
 at org.jboss.seam.contexts.Lifecycle.beginApplication(Lifecycle.java:89)
 at org.jboss.seam.Seam.componentForName(Seam.java:211)
 at org.jboss.seam.intercept.SessionBeanInterceptor.postConstruct(SessionBeanInterceptor.java:101)
 at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
 at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
...

Is what I'm attempting to do even possible? Is there another route that more experienced Seam developers would take? Any input would be greatly appreciated.

[bkyrlach]

Let me clarify.

What I'm trying to do is have a server with my EJB's/Seam Components deployed in a standalone jar, and then be able to access these EJB's/Seam Components from a war(s) deployed on other server(s).

Basically, the idea of having my Seam components as a web service that anyone could develop a web application for.

[gavin.king]

It is possible, but you need to deploy the Seam components that are to be called remotely in an EAR with a WAR and a full Seam config, even if you don't have any JSF pages on that box.

[bkyrlach]

Woot! Thanks Gavin, I'll try that out right away.

[billdurrell]

I have been asked to do the same thing. Please let me know how you make out in this post .