BACKING BEAN issue with af:showpanelcontrol - little Urgent!!

Question

Hello,
I need to create a af:showonepanel control that has four panels. This af:showpanel control uses af:showdetailitem to display details. The requirement is to programmatically disclose or undisclose the navigation between panels as soon as a mouse hover event takes place.
In Order to achieve this, I have done following three things.
1) Created a managed bean
2) Wrote following java class
package Ruchir.CoexsysStart.coexsys.classes.jsps;
import oracle.adf.view.faces.component.core.layout.*;
import oracle.adf.view.faces.component.*;
public class ShowApanel {
private CoreShowDetail detail;
public ShowApanel() {
public String setSight(CoreShowDetail detail) {
detail.setDisclosed(!detail.isDisclosed());
3)Bind the component to the corresponding bean property using an EL expression
as the value for the binding attribute, as shown in this code snippet:
<af:showonepanel binding="#(#Ruchir.Start.sys.classes.jsps.ShowApanel.Setsight()">
At this stage, I tested the navigation of the af:showonepanel but it is not working as expected at all. I am not sure what I am doing wrong. I am new to Java and through trial and error approach I came up with above mentioned solution. Please indicate my mistakes where exactly it is failing.
Thank you so much for your time and efforts on this posting.
-Ruchir

Answer 1

Reposting above message to bring it front. This is a critical path item for me. So hoping the sooner I get feedback the luckier I will be :)
Thanks,
Ruchir