I had a quick look at the code to see if there was a simple way to resolve:
http://issues.apache.org/jira/browse/TRINIDAD-708 ... and, ouch, not really. The problem's not so much on the XMLMenuModel side of things, but the MenuContentHandlerImpl and MenuNode code, where we have: - A singleton MenuContentHandlerImpl that is storing a requestMap key to pass it onto the MenuNode - MenuNodes that use that key to go back and locate the root menu model. Fixing the one-XMLMenuModel-per-page limitation is going to require rethinking this odd design. -- Adam On 9/12/07, Adam Winer <[EMAIL PROTECTED]> wrote: > On 9/12/07, Andrew Robinson <[EMAIL PROTECTED]> wrote: > > I changed the managed-bean-scope to request for both, seeing that in > > the developer guide, but it doesn't affect this code. > > > > Is there some odd requirement that there can only be one XmlMenuModel > > per application? > > There definitely shouldn't be any such requirement. I > don't know the code well enough to know why this might > go wrong. > > -- Adam > > > > > > -Andrew > > > > On 9/12/07, Andrew Robinson <[EMAIL PROTECTED]> wrote: > > > I have 2 controls backed by an XmlMenuModel, a main menu and a help > > > context menu. When I only had one menu, my code was working. When I > > > introduced the 2nd model, I started getting this exception: > > > > > > java.lang.NullPointerException > > > at > > > org.apache.myfaces.trinidad.model.XMLMenuModel.getFocusRowKey(XMLMenuModel.java:292) > > > at > > > org.apache.myfaces.trinidad.component.UIXNavigationHierarchy.getFocusRowKey(UIXNavigationHierarchy.java:79) > > > at > > > org.apache.myfaces.trinidad.component.HierarchyUtils.__handleEncodeBegin(HierarchyUtils.java:88) > > > at > > > org.apache.myfaces.trinidad.component.UIXNavigationTree.__encodeBegin(UIXNavigationTree.java:153) > > > at > > > org.apache.myfaces.trinidad.component.UIXCollection.encodeBegin(UIXCollection.java:515) > > > at > > > org.apache.myfaces.shared_tomahawk.renderkit.RendererUtils.renderChild(RendererUtils.java:435) > > > at > > > org.apache.myfaces.shared_tomahawk.renderkit.RendererUtils.renderChildren(RendererUtils.java:423) > > > at > > > org.apache.myfaces.custom.roundeddiv.HtmlRoundedDivRenderer.encodeChildren(HtmlRoundedDivRenderer.java:319) > > > at > > > javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:527) > > > at > > > org.apache.myfaces.trinidadinternal.uinode.UIComponentUINode._renderComponent(UIComponentUINode.java:320) > > > at > > > org.apache.myfaces.trinidadinternal.uinode.UIComponentUINode.render(UIComponentUINode.java:279) > > > at > > > org.apache.myfaces.trinidadinternal.uinode.UIComponentUINode.render(UIComponentUINode.java:256) > > > at > > > org.apache.myfaces.trinidadinternal.ui.BaseRenderer.renderChild(BaseRenderer.java:425) > > > at > > > org.apache.myfaces.trinidadinternal.ui.BaseRenderer.renderIndexedChild(BaseRenderer.java:343) > > > at > > > org.apache.myfaces.trinidadinternal.ui.BaseRenderer.renderIndexedChild(BaseRenderer.java:235) > > > at > > > org.apache.myfaces.trinidadinternal.ui.BaseRenderer.renderContent(BaseRenderer.java:142) > > > at > > > org.apache.myfaces.trinidadinternal.ui.laf.base.desktop.PanelTabbedRenderer.renderContent(PanelTabbedRenderer.java:112) > > > at > > > org.apache.myfaces.trinidadinternal.ui.BaseRenderer.render(BaseRenderer.java:93) > > > at > > > org.apache.myfaces.trinidadinternal.ui.laf.base.xhtml.XhtmlLafRenderer.render(XhtmlLafRenderer.java:84) > > > at > > > org.apache.myfaces.trinidadinternal.uinode.UIXComponentUINode.renderInternal(UIXComponentUINode.java:192) > > > at > > > org.apache.myfaces.trinidadinternal.uinode.UINodeRendererBase.encodeEnd(UINodeRendererBase.java:70) > > > at > > > org.apache.myfaces.trinidad.component.UIXComponentBase.encodeEnd(UIXComponentBase.java:710) > > > > > > > > > faces-config.xml: > > > <managed-bean> > > > <managed-bean-name>mainMenuModel</managed-bean-name> > > > > > > <managed-bean-class>org.apache.myfaces.trinidad.model.XMLMenuModel</managed-bean-class> > > > <managed-bean-scope>application</managed-bean-scope> > > > <managed-property> > > > <property-name>source</property-name> > > > <value>/WEB-INF/mainMenu.xml</value> > > > </managed-property> > > > </managed-bean> > > > <managed-bean> > > > <managed-bean-name>helpContextMenuModel</managed-bean-name> > > > > > > <managed-bean-class>org.apache.myfaces.trinidad.model.XMLMenuModel</managed-bean-class> > > > <managed-bean-scope>application</managed-bean-scope> > > > <managed-property> > > > <property-name>source</property-name> > > > <value>/WEB-INF/helpContents.xml</value> > > > </managed-property> > > > </managed-bean> > > > > > > > > > The problem seems to be a result of: > > > > > > if (this == _getRootModel()) > > > { > > > _viewIdFocusPathMap = > > > _contentHandler.getViewIdFocusPathMap(_mdSource); > > > _nodeFocusPathMap = > > > _contentHandler.getNodeFocusPathMap(_mdSource); > > > _idNodeMap = _contentHandler.getIdNodeMap(_mdSource); > > > } > > > > > > For the 2nd component, the "if" evaluates to false, so the three > > > member variables are null, and the exception is because > > > _viewIdFocusPathMap is null. > > > > > > Am I doing something wrong or is this a bug in 1.0.3-SNAPSHOT? > > > > > > Usage of main menu > > > <tr:navigationPane > > > id="mainMenuPanel" > > > partialTriggers="mainMenuPanel" > > > hint="list" > > > var="_node" > > > value="#{mainMenuModel}"> > > > <f:facet name="detailStamp"> > > > <tr:commandNavigationItem > > > actionListener="#{menuBean.onMainAction}" > > > partialSubmit="true" > > > immediate="true"> > > > <f:param name="conversationPropagation" value="#{'none'}" /> > > > </tr:commandNavigationItem> > > > </f:facet> > > > </tr:navigationPane> > > > > > > Usage of contents model: > > > > > > <tr:navigationTree > > > id="helpContextTree" > > > var="_item" > > > value="#{helpContextMenuModel}"> > > > <f:facet name="nodeStamp"> > > > <tr:commandNavigationItem > > > text="#{_item.label}" > > > partialSubmit="true"> > > > <t:updateActionListener > > > value="#{_item.id}" > > > property="#{helpBean.currentHelpTopicKey}" /> > > > </tr:commandNavigationItem> > > > </f:facet> > > > </tr:navigationTree> > > > > > > > > > -Andrew > > > > > >
