[jboss-user] [JBoss Seam] - null component check in the view -- how does it work?

[allonrauer]

in the dvd store example, i notice that some of the view 'code' checks for null component values (e.g., <f:subview rendered="#{currentUser == null}">).

however, it looks like the SeamVariableResolver automatically creates a component when resolving a name:
   public Object resolveVariable(FacesContext facesContext, String name) throws EvaluationException
   {
      name = name.replace('$', '.');
      
      log.debug("resolving name: " + name);
      Object component = Component.getInstance(name, true);
 
so how can the component value ever be null?

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