Latest Possible PagePhaseListener - Jdev 11.1.2.3

Question

Hello:
I have the following Use Case:
After the inital JSF page load, I need to programatically press a button on that page.  I attempted to create a PagePhaseListener detecting LifeCycle.PREPARE_RENDER_ID and using isInitialRender() then using UIViewRoot::findComponent("cb1"). See code at bottom.
The Button I want to press has id=cb1
But findComponent() is always comming back as null.
I think I have two different problems.
Problem 1 : I need to press the button after the page completes rendering. Is the PREPARE_RENDER_ID the latest possible point to attempt this?
Problem 2:  How do I detect the proper name of the button with all its naming containers.  I looked in FireBug and it seems the button name is:
pt1:r1:0:cb1  and I tried this but this still returns null.  Do facets matter regarding naming containers?
What am I doing wrong?
Thanks for the help.
public void afterPhase(PagePhaseEvent pagePhaseEvent) {
        if (pagePhaseEvent.getPhaseId() == Lifecycle.PREPARE_RENDER_ID) {
            if(AdfFacesContext.getCurrentInstance().isInitialRender()) {
                FacesContext fc = FacesContext.getCurrentInstance();
                UIViewRoot root = fc.getViewRoot();
                RichCommandButton b = (RichCommandButton) root.findComponent("cb1");
                // also tried "pt1:r1:0:cb1" but still returns null
                if (b == null){  ..... is always null

Answer 1

Hi,
you are on 11g R2 and thus you are on JSF 2. So you can use f:event added to a command button you want to press on load. This way as soon as the button renders you can invoke a managed bean method that then queues the button press (or. instead of pressing the button directly invoke the method you want to execute)
e.g.
<af:commandButton text="Press on Page Load" id="cb1"
                                          actionListener="#{viewScope.OnLoadHandler.onButtonPressed}"
                                          partialSubmit="true">
                            <f:event listener="#{viewScope.OnLoadHandler.pressButton}" type="postAddToView"/>
                        </af:commandButton>
Managed Bean Code
public void pressButton(ComponentSystemEvent componentSystemEvent) {
if (initialPageLoad == false) {
RichCommandButton rc = (RichCommandButton)componentSystemEvent.getComponent();
String clientId = rc.getClientId();
String javaScript = "var button = AdfPage.PAGE.findComponentByAbsoluteId('"+clientId+"');" +
"AdfActionEvent.queue(button,true)";
FacesContext facesContext = FacesContext.getCurrentInstance();
ExtendedRenderKitService service = Service.getRenderKitService(facesContext, ExtendedRenderKitService.class);
service.addScript(facesContext, javaScript);
initialPageLoad = true;
Frank