Request parameters are null in seperate requests - any workarounds?

[poschd]

Hi!

I have a problem when using @RequestParameter and RichFaces, specifically <rich:paint2D>. I pass a Seam component to <rich:paint2D> in order to have my image painted, but this JavaBean depends on a request parameter. It works perfectly fine to inject its value using @RequestParameter outside <rich:paint2D>, but in the other case it always returns a null value.

I found out this happens because the browser requests external resource contents in a seperate request - without having any request parameters passed. I have spent hours and hours to find a nice solution on this issue, but I failed.

How can I workaround this problem?

I thought it might be possible to inject type from the PAGE context, but seperate requests have actually seperate PAGE contexts, don't they?

Best Regards,
Daniel

<rich:paint2D id="facelayoutImg" alt="Facelayout" format="png"
        paint="#{facelayout.paint}" width="1082" height="616" data="#{someData}" />

@Name("facelayout")
@Scope(ScopeType.PAGE)
public class FacelayoutPainterBean implements Serializable {
        @RequestParameter
        private String type;

        // ...

        @Create
        public void init() {
                // do something with 'type'
        }

        public void paint(Graphics2D g2d, Object obj) {
                // ...
        }

        // ...
}