How to set a value in a managed bean when click on a button

Question

Dear all
I have a managed bean that contains an attribute of type string as follow:
the attribute name is taskFlowId
package dhamanADM.view.beans;
import oracle.adf.controller.TaskFlowId;
public class dynamicTaskFlowManager {
   private String taskFlowId = "/WEB-INF/flows/procedureMaster.xml#procedureMaster";   
    public dynamicTaskFlowManager() {
        super();
  public TaskFlowId getDynamicTaskFlowId() {
   return TaskFlowId.parse(taskFlowId);
}I want to change the value of this attribute when clicking on a commandMenuItem as follow
   <af:commandMenuItem text="Mission Persons" id="pt_cmi1"
                                            action="missionPers">
   <af:setActionListener from="/WEB-INF/flows/editPersionMission.xml#editPersionMission"
                                  to="#{pageFlowScope.dmDynamicTaskFlowManager.dynamicTaskFlowId}"/>
   </af:commandMenuItem>at run time when clicking on the menu this error appears
java.lang.IllegalArgumentException: Cannot convert /WEB-INF/flows/editPersionMission.xml#editPersionMission of type class java.lang.String to class oracle.adf.controller.TaskFlowId
My target is just to change the value of the attribute "taskFlowId" when clicking on the commandMenuItem
how can i do this?
Thanks in advance
Edited by: ta**** on Mar 29, 2011 1:24 PM

Answer 1

You are setting to set a String value where a type of TaskFlowId is required.
Looks like, you are trying to set the taskFlowId for the dynamic region. Modify the code as follows:
public class dynamicTaskFlowManager {
private String taskFlowId = "/WEB-INF/flows/procedureMaster.xml#procedureMaster";
public dynamicTaskFlowManager() {
super();
*public TaskFlowId getDynamicTaskFlowId() {*
AdfFacesContext adfFacesContext = AdfFacesContext.getCurrentInstance();
String currentTaskFlowId =
*(String)adfFacesContext.getPageFlowScope().get("CurrentTaskFlowId");*
if (currentTaskFlowId == null ||
*currentTaskFlowId.trim().equals("") == true) {*
currentTaskFlowId = taskFlowId;
return TaskFlowId.parse(currentTaskFlowId);
In the MenuItem, modify it as follows:
<af:commandMenuItem text="Mission Persons" id="pt_cmi1"
action="missionPers">
*<af:setActionListener from="/WEB-INF/flows/editPersionMission.xml#editPersionMission"*
*to="#{pageFlowScope.CurrentTaskFlowId}"/>*
</af:commandMenuItem>
Thanks,
Navaneeth