[ http://issues.apache.org/jira/browse/MYFACES-1359?page=all ]
John Singleton updated MYFACES-1359:
------------------------------------
Status: Patch Available (was: Open)
> PortletExternalContextImpl.encodeNamespace called during portlet ActionRequest
> ------------------------------------------------------------------------------
>
> Key: MYFACES-1359
> URL: http://issues.apache.org/jira/browse/MYFACES-1359
> Project: MyFaces Core
> Type: Bug
> Components: Portlet_Support
> Versions: 1.1.5-SNAPSHOT
> Environment: Facelets + Liferay 4.0.0
> Reporter: John Singleton
>
> Theis portlet fragment renders one of 2 components depending on the selection
> in the selectOneMenu:
> <div xmlns:f="http://java.sun.com/jsf/core";
> xmlns:h="http://java.sun.com/jsf/html";>
> <h:form>
> <h:outputLabel for="list">foo</h:outputLabel>
> <h:selectOneMenu value="${booleanTest.choice}"
> id="list"><f:selectItems value="#{booleanTest.selectList}"/></h:selectOneMenu>
> <h:commandButton action="#{booleanTest.doIt}"/>
> </h:form>
> <h:outputText rendered="#{empty booleanTest.list}" value="Empty"/>
> <h:dataTable rendered="#{! empty booleanTest.list}"
> value="#{booleanTest.list}" var="l" border="1">
> <h:column>
> <f:facet name="header"><h:outputText value="Column"/></f:facet>
> <h:outputText value="#{l}"/>
> </h:column>
> </h:dataTable>
> </div>
> It's using this simple bean:
> public class BooleanTest {
> private List<String> list = new ArrayList<String>();
> private List<String> emptyList = new ArrayList<String>();
> private String choice = "Foo";
> private List<SelectItem> selectList = null;
>
> public List<String> getList() {
> if (choice.equals("Foo")) {
> return emptyList;
> } else {
> if (list.isEmpty()) {
> list = new ArrayList<String>();
> list.add("Hello");
> list.add("World");
> list.add("!!!!!");
> }
> return list;
> }
> }
>
> public String doIt() {
> return "success";
> }
> public List<SelectItem> getSelectList() {
> if (selectList == null) {
> selectList = new ArrayList<SelectItem>();
> selectList.add(new SelectItem("Foo", "Foo"));
> selectList.add(new SelectItem("bar", "bar"));
> }
> return selectList;
> }
> public String getChoice() {
> return choice;
> }
> public void setChoice(String choice) {
> this.choice = choice;
> }
> }
> When I first add this portlet to a page, I get the drop down list, the submit
> button and the "empty" message. If I select the 'bar' entry in the list and
> click submit I get the error, " Can not call encodeNamespace() during a
> portlet ActionRequest"
> It seems to be because MyFacesGenericPortlet.processAction calls
> lifecycle.execute, which in turn starts createing components for the table
> (which wasn't in the first call to the page). This calls encodeNamespace for
> the new componenet IDs and thats when it falls over.
> I fixed this by changing PortletExternalContextImpl.encodeNamespace to return
> null instead of throwing an IllegalStateException. My application seems to be
> working well with this solution, but I don't know if it might have any knock
> on effects?
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