[jboss-user] [JBoss Portal] - Errors when trying to edit JSF admin pages with custom compo
I have successfully added an attribute to the user profile object, but I want to be able
to pull a list from a database and display it back to the user so that they may select
from it.
| <h:selectOneMenu id="company"
value="#{manager.uiUser.attribute.company}"
required="#{metadataservice.company.required}">
| <f:selectItems value="#{customerManager.customerNames}" />
| </h:selectOneMenu>
|
Backing bean:
| package com.mycompany.ui;
|
| import java.util.ArrayList;
| import java.util.List;
|
| import javax.faces.model.SelectItem;
|
| import com.mycompany.data.Customer;
| import com.mycompany.service.CustomerManager;
|
| public class CustomerBean {
|
| private List<SelectItem> customerNames;
|
| public void setCustomerNames(List<SelectItem> customerNames) {
| this.customerNames = customerNames;
| }
|
| public List<SelectItem> getCustomerNames() {
| if (customerNames == null) {
| customerNames = initNames();
| }
|
| return customerNames;
| }
|
| private List<SelectItem> initNames() {
| List<SelectItem> custNamesSelectItem = new ArrayList<SelectItem>();
| try {
| List<Customer> customerListFromDb = CustomerManager.getAllCustomers();
| for (Customer c : customerListFromDb) {
| custNamesSelectItem.add(new SelectItem(c.getId(), c.getName()));
| }
| } catch (Exception e) {
| // TODO Auto-generated catch block
| e.printStackTrace();
| }
|
| return custNamesSelectItem;
| }
| }
|
When I access the page, I get the following exception. What causes this, since I am
returning a list of SelectItem objects?
| Caused by: java.lang.IllegalArgumentException: Collection referenced by UISelectItems
with binding '#{customerManager.customerNames}' and Component-Path :
{Component-Path : [Class: javax.faces.component.UIViewRoot,ViewId:
/WEB-INF/jsf/admin/editProfile.xhtml][Class: javax.faces.component.html.HtmlForm,Id:
_id26jbpns_2fadmin_2fMembers_2fIdentityAdminPortletWindowsnpbj][Class:
javax.faces.component.html.HtmlPanelGrid,Id:
_id43jbpns_2fadmin_2fMembers_2fIdentityAdminPortletWindowsnpbj][Class:
javax.faces.component.html.HtmlSelectOneMenu,Id: company][Class:
javax.faces.component.UISelectItems,Id:
_id85jbpns_2fadmin_2fMembers_2fIdentityAdminPortletWindowsnpbj]} does not contain Objects
of type SelectItem
| at
org.apache.myfaces.shared_impl.util.SelectItemsIterator.next(SelectItemsIterator.java:184)
| at
org.apache.myfaces.shared_impl.renderkit.RendererUtils.internalGetSelectItemList(RendererUtils.java:451)
| at
org.apache.myfaces.shared_impl.renderkit.RendererUtils.getSelectItemList(RendererUtils.java:428)
| at
org.apache.myfaces.shared_impl.renderkit.html.HtmlRendererUtils.internalRenderSelect(HtmlRendererUtils.java:294)
| at
org.apache.myfaces.shared_impl.renderkit.html.HtmlRendererUtils.renderMenu(HtmlRendererUtils.java:267)
| at
org.apache.myfaces.shared_impl.renderkit.html.HtmlMenuRendererBase.encodeEnd(HtmlMenuRendererBase.java:59)
| at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:539)
| at
org.apache.myfaces.shared_impl.renderkit.RendererUtils.renderChild(RendererUtils.java:419)
| at
org.apache.myfaces.shared_impl.renderkit.html.HtmlGridRendererBase.renderChildren(HtmlGridRendererBase.java:229)
| at
org.apache.myfaces.shared_impl.renderkit.html.HtmlGridRendererBase.encodeEnd(HtmlGridRendererBase.java:101)
| at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:539)
| at
com.sun.facelets.tag.jsf.ComponentSupport.encodeRecursive(ComponentSupport.java:242)
| at
com.sun.facelets.tag.jsf.ComponentSupport.encodeRecursive(ComponentSupport.java:239)
| at
com.sun.facelets.tag.jsf.ComponentSupport.encodeRecursive(ComponentSupport.java:239)
| at
com.sun.facelets.FaceletViewHandler.renderView(FaceletViewHandler.java:540)
| at
org.apache.myfaces.lifecycle.RenderResponseExecutor.execute(RenderResponseExecutor.java:41)
| at org.apache.myfaces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:132)
| at
org.apache.myfaces.portlet.MyFacesGenericPortlet.facesRender(MyFacesGenericPortlet.java:498)
| ... 236 more
|
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