Binding Component to Backing Bean Property

[mikeeprice]

I tried to bind a component to a backing bean property

<h:form>
<h:panelGrid id="panelGrid_01" binding="#{conceptManager.letterPanelGrid}"/>
</h:form>

and ran into this problem.

"You can't bind to a CONVERSATION scoped backing component because the conversation context is not available in the RESTORE VIEW phase."

So I changed the scope to Session

@Stateful
@Name("conceptManager")
@Scope(ScopeType.SESSION)
public class ConceptManagerAction implements ConceptManager, Serializable{

and still had the same problem.

java.lang.IllegalStateException: No conversation context active org.jboss.seam.ScopeType.getContext(ScopeType.java:126) org.jboss.seam.Component.outjectAttribute(Component.java:1665)
...
com.sun.facelets.el.TagValueExpression.setValue(TagValueExpression.java:93) com.sun.faces.lifecycle.RestoreViewPhase.doPerComponentActions(RestoreViewPhase.java:244)

Is it possible that I could write a PhaseListener that runs before RestoreView and makes the necessary context avaiable so that resolving the binding expression during RestoreView will work? If not then would the closest alternative be creating a custom component that will create the kind of PanelGrid I would like to have?

Thanks Mike Price

[matt.drees]

That doesn't look like quite the same problem; it looks (from the stacktrace) like you have an @Out(scope=Conversation) somewhere. Try setting it to required=false; IIRC, that will prevent the IllegalStateException from being thrown when the context isn't available.

[matt.drees]

Also, you might want to consider binding to an event-scoped component, not a session-scoped one. It's what the docs recommend, anyway.

[mikeeprice]

I have a session bean that basically contains the logic for a crud app so I had put the property that I was using for the component binding in that bean. Based on your comments I created a separate stateless bean scoped EVENT and put the bind-to property in there and now it works fine.

Thank You for your help.