Thanks for the reply.
Yes, I've tried that, and I get an exception:
Error calling action method of component with id
j_id_jsp_374696285_3:navPaneA:1:navItemA
Caused by:
java.lang.NullPointerException - /includes/content_include.jspx(17,32)
'#{foo.doAction}' java.lang.NullPointerException
It seems there is no foo (ItemNode). In fact the documentation in Developers
Guide:XMLMenuModel says
"the scope for the menu model must be 'request'."
Glenn Silverman
-----Original Message-----
From: Zigc Junk [mailto:[EMAIL PROTECTED]
Sent: Thursday, July 31, 2008 2:23 PM
To: MyFaces Discussion
Subject: Re: How can I create a session scoped Trinidad menu model
Did u try to change from request to session? Since your bean is
request scoped, every request will create a new instance of the bean,
so does its property.
regard
Bill
On Thu, Jul 31, 2008 at 4:05 PM, Silverman, Glenn <[EMAIL PROTECTED]> wrote:
> I need a session-scoped menu model but the documentation says I can't, and
> that creates a problem
> whenever I click on a button to do something when I'm not on the first tab
> of the menu. Here's my code...
> I have a trinidad switcher control managed by a commandNavigationItem
> control.
>
> <tr:navigationPane id="navPaneA" level="1"
> value="#{root_menu}" var="foo">
> <f:facet name="nodeStamp">
> <tr:commandNavigationItem
> id="navItemA" text="#{foo.label}"
> action="#{foo.doAction}"/>
> </f:facet>
> </tr:navigationPane>
>
> <tr:switcher facetName="#{root_menu.navLabel}"
> defaultFacet="Messages" >
> <f:facet name="Messages">
> <tr:panelGroupLayout layout="vertical">
> <jsp:include
> page="../editors/errormessages.jspx"/>
> </tr:panelGroupLayout>
> </f:facet>
> <f:facet name="Help Text">
> <tr:panelGroupLayout layout="vertical">
> <jsp:include
> page="../editors/help.jspx"/>
> </tr:panelGroupLayout>
> </f:facet>
> <f:facet name="Buttons">
> <tr:panelGroupLayout layout="vertical">
> <jsp:include
> page="../editors/buttons.jspx"/>
> </tr:panelGroupLayout>
> </f:facet>
> <f:facet name="Sounds">
> <tr:panelGroupLayout layout="vertical">
> <jsp:include
> page="../editors/sounds.jspx"/>
> </tr:panelGroupLayout>
> </f:facet>
> </tr:switcher>
>
> And a menu model:
>
> <menu xmlns="http://myfaces.apache.org/trinidad/menu";>
> <groupNode id="msgs" idref="message" label="Error Messages"
> defaultFocustPath="true">
> <itemNode id="message" label="Messages"
> action="goToMessages"
> focusViewId="/index.jspx"/>
> <itemNode id="help" label="Help Text"
> action="goToHelp"
> focusViewId="/index.jspx"/>
> <itemNode id="button" label="Buttons"
> action="goToButton"
> focusViewId="/index.jspx"/>
> <itemNode id="sound" label="Sounds"
> action="goToSound"
> focusViewId="/index.jspx"/>
> </groupNode>
> <groupNode id="allcodes" label="AllCodes" idref="cat">
>
> <itemNode id="cat" label="Categories"
> action="goToCategory"
> focusViewId="/index.jspx" />
> <itemNode id="link" label="CodeLinks"
> action="goToLink"
> focusViewId="/index.jspx" />
> </groupNode>
> </menu>
>
> which is defined in faces-config.xml as a managed bean:
>
> <managed-bean>
> <managed-bean-name>root_menu</managed-bean-name>
> <managed-bean-class>com.dylt.bean.MenuModelBean</managed-bean-class>
> <managed-bean-scope>request</managed-bean-scope>
> <managed-property>
> <property-name>source</property-name>
> <property-class>java.lang.String</property-class>
> <value>/WEB-INF/menu-metadata.xml</value>
> </managed-property>
> </managed-bean>
>
> Here, MenuModelBean just extends XMLMenuModel as follows (This is
> similar to the example in the Trinidad Developer Guide):
>
> public class MenuModelBean extends XMLMenuModel {
>
> public String getGroupLabel(){
> List list = getNodesFromFocusPath(false);
> return (String)list.get(list.size()-1);
> }
> public String getNavLabel(){
> List list = getNodesFromFocusPath(true);
> return (String)list.get(list.size()-1);
> }
> public List getNodesFromFocusPath(boolean itemsOnly){
> ArrayList focusPath = (ArrayList)this.getFocusRowKey();
> return getNodesFromFocusPath(focusPath, itemsOnly);
> }
>
> public List getNodesFromFocusPath(ArrayList focusPath, boolean
> itemsOnly){
>
>
> if (focusPath == null || focusPath.size() == 0)
> return null;
>
> // Clone the focusPath cause we remove elements
> ArrayList fp = (ArrayList) focusPath.clone();
>
> // List of nodes to return
> List nodeList = new ArrayList<Object>();
>
> // Convert String rowkey to int and point to the
> // node (row) corresponding to this index
> int targetNodeIdx = (Integer)fp.get(0);
> TreeModel tree = (TreeModel)this.getWrappedData();
>
> tree.setRowIndex(targetNodeIdx);
>
> // Get the node
> Object node = tree.getRowData();
> String label = null;
> if(node instanceof ItemNode){
> label= ((ItemNode)node).getLabel();
> if(itemsOnly)
> nodeList.add(label);
> }
> else if (node instanceof GroupNode){
> label= ((GroupNode)node).getLabel();
> if(!itemsOnly)
> nodeList.add(label);
> }
>
>
> // Remove the 0th rowkey from the focus path
> // leaving the remaining focus path
> fp.remove(0);
>
> // traverse into children
> if ( fp.size() > 0
> && tree.isContainer()
> && !tree.isContainerEmpty()
> )
> {
> tree.enterContainer();
>
> // get list of nodes in remaining focusPath
> List childList = getNodesFromFocusPath(fp, itemsOnly);
>
> // Add this list to the nodeList
> nodeList.addAll(childList);
>
> tree.exitContainer();
> }
>
> return nodeList;
> }
> )
>
> Here's the problem: If I'm on one of the facet pages other than the first
> one, clicking
> on any command button or link always takes me back to the first facet. If I
> use
> partialSubmit and partialTriggers to try to limit page refresh to a
> particular page
> element, the behavior is even more bizarre. If I click on a tab to change
> facets, the
> first command button or link click works as expected, but any subsequent
> clicks assume
> I am on the first facet page and won't update the facet page I'm on at all.
>
> Here's an example page, the help.jspx in the second facet:
>
> jsp:root xmlns:jsp="http://java.sun.com/JSP/Page"; version="2.0"
> xmlns:f="http://java.sun.com/jsf/core";
> xmlns:tr="http://myfaces.apache.org/trinidad";>
> <jsp:directive.page contentType="text/html;charset=utf-8" />
> <f:subview id="helpWrapperA">
> <tr:table id="helpTableA" var="hlp"
> value="#{helpBean.list}" partialTriggers="helpEditLink">
> <tr:column headerText="Id">
> <tr:outputText value="#{hlp.helpId}"
> />
> </tr:column>
> <tr:column headerText="Message">
> <tr:commandLink id="helpEditLink"
> text="#{hlp.text}"
> immediate="true"
> partialSubmit="true">
> <tr:setActionListener
> from="#{hlp}"
>
> to="#{pageFlowScope.helpDetail}" />
> </tr:commandLink>
> </tr:column>
> </tr:table>
> </f:subview>
> <tr:separator/>
> <tr:showDetail undisclosedText="Show Detail" disclosedText="Hide
> Detail">
> <f:subview id="helpWrapperB">
> <tr:panelFormLayout rows="2"
>
> partialTriggers=":::helpWrapperA:helpTableA:helpEditLink">
> <tr:outputText value="ID:" />
> <tr:outputText value="Text:" />
> <tr:outputText
> value="#{pageFlowScope.helpDetail.helpId}" />
> <tr:inputText
> value="#{pageFlowScope.helpDetail.text}"/>
> </tr:panelFormLayout>
> </f:subview>
> </tr:showDetail>
> </jsp:root>
>
> Could this behavior be the result of the fact that the scope for the menu
> model must be "request" ? If so, then every subsequent
>
> "request" will always go to, or assume I'm on, the default tab. How can I
> change this?
>
> Glenn Silverman
>
>
