[jboss-user] [JBoss Seam] - null component check in the view -- how does it work?
allonrauer
do-not-reply at jboss.com
Tue Aug 1 15:08:03 EDT 2006
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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