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
