Error while saving changes of declarative component to MDS

Question

Hi,
Using ADF Faces 11gR1PS1.
I am trying to create a declarative component where user can close a panel box (not just minimize) by setting rendered property to false. It works fine.
Next I tried to save the attribute change to MDS so that user settings are preserved across sessions. However I got the following error:
<FilteredPersistenceChangeManager><_getQualifiedTagName> WebAppDesignContext is not available at application scope. Please ensure that your application is built as a 'Fusion Web Application (ADF)', and that taglib.jar and facesconfigmodel.jar are in class path.
<FilteredPersistenceChangeManager><_isChangeAllowedThroughPersistentChangeManager> Could not obtain tag name for the component being changed. Component ref: RichPanelBox[UIXFacesBeanImpl, id=dc_pb2]
<FilteredPersistenceChangeManager><_addDocumentChangeImpl> The DocumentChange is not configured to be allowed for the component: RichPanelBox[UIXFacesBeanImpl, id=dc_pb2]Following is the page code:
          <af:panelBox text="#{attrs.p2Header}" id="dc_pb2"
                       rendered="#{attrs.p2Header ne null and dashboardXBean.portletRendered.dc_pb2}"
                       showDisclosure="false">
            <af:componentDragSource discriminant="portlet"/>
            <f:facet name="toolbar">
              <af:commandImageLink id="p_cil2"
                                   icon="/images/removeselected_dwn.png"
                                   hoverIcon="/images/removeselected_ovr.png"
                                   depressedIcon="/images/removeselected_ena.png"
                                   actionListener="#{dashboardXBean.handleHideEvent}"
                                   rendered="#{attrs.sideNavRendered}">
                <f:attribute name="portletId" value="dc_pb2"/>
              </af:commandImageLink>
            </f:facet>
            <af:facetRef facetName="p2"/>
          </af:panelBox>Following is the code in the managed bean to persist changes:
    private void saveShowHideChange(String portletId, boolean isRendered) {
        FacesContext fc = FacesContext.getCurrentInstance();
        ChangeManager cm = RequestContext.getCurrentInstance().getChangeManager();
        //ChangeManager pcm = AdfFacesContext.getCurrentInstance().getPersistentChangeManager();
        UIComponent puc = boundedDashboard.findComponent(portletId);
        ComponentChange pcc = new AttributeComponentChange("rendered", Boolean.toString(isRendered));
        cm.addComponentChange(fc, puc, pcc);
    }I am not really sure if the above code needs to be in the component managed bean or in the bean of the page that uses this declarative component.
Any pointers are appreciated.
Thanks,
Husain

Answer 1

Thanks for the reply Frank.
For declarative components do we have separate renderer?
The [Developers Guide|http://download.oracle.com/docs/cd/E12839_01/web.1111/b31974/ad_persist.htm#BABBGCJA] didnt seem very helpful on this topic.
Can you point me to some reference material if available.
Thanks,
Husain