Custom ViewHandler

Question

is this enough and right way to create custom ViewHandler -
public class CustomLocaleViewHandler extends ViewHandlerWrapper {
protected ViewHandler getWrapped() {
return new CustomLocaleViewHandler();
i don't get any compilation error.
however it gives stack over flow error at run time -
java.lang.StackOverflowError
     at javax.faces.application.ViewHandler.(ViewHandler.java:70)
     at javax.faces.application.ViewHandlerWrapper.(ViewHandlerWrapper.java:62)
     at com.lr.bos.lifecycle.CustomLocaleViewHandler.(CustomLocaleViewHandler.java:17)
     at com.lr.bos.lifecycle.CustomLocaleViewHandler.getWrapped(CustomLocaleViewHandler.java:20)
     at javax.faces.application.ViewHandlerWrapper.calculateRenderKitId(ViewHandlerWrapper.java:117)
     at javax.faces.application.ViewHandlerWrapper.calculateRenderKitId(ViewHandlerWrapper.java:117)
     at javax.faces.application.ViewHandlerWrapper.calculateRenderKitId(ViewHandlerWrapper.java:117)
what other methods i should override?
thanks.

Answer 1

To extend WebCenter Portal View Handler you have to:
1) Create a class extending oracle.webcenter.portalframework.sitestructure.handler.CustomViewHandler
public class ApplicationViewHandler extends CustomViewHandler {
     * Constructor
     * @param viewHandler
    public ApplicationViewHandler(ViewHandler viewHandler) {
        super(viewHandler);
}2) Register it in faces-config as follow:
<application>
    <default-render-kit-id>oracle.adf.rich</default-render-kit-id>
    <view-handler>com.merchan.portal.util.ApplicationViewHandler</view-handler>
</application>3) You can override all the methods that you want: Sample:
    * Extend to address issue with bug 11076967 involving login
    @Override
    public String getActionURL(FacesContext fctx, String viewId) {
        String urlStr = viewId;
        if (Beans.isDesignTime()) {
            return this.m_baseHandler.getActionURL(fctx, urlStr);
        // Only perform the pretty url lookup if the request was from our
        // navigation processAction
        if (isRequestDrivenByNavigation(fctx)) {
            SiteStructure model =
                SiteStructureContext.getInstance().getCurrentModel();
            if (model != null) {
                SiteStructureResource resource = model.getCurrentSelection();
                if (resource != null) {
                    String resourceViewId = findTargetViewId(fctx, resource);
                    if (resourceViewId != null &&
                        resourceViewId.equals(viewId))
                        urlStr = "/" + SiteStructureUtils.encodeUrl(resource.getPrettyUrl());
        String ret = this.m_baseHandler.getActionURL(fctx, urlStr);
        return ret;
    }Regards.