rich:listShuttle -- getting some error

[ashutoshdeora]

i am using rich:listShuttle
i am getting this particular error

sourceId=j_id1:j_id4[severity=(ERROR 2), summary=(javax.el.PropertyNotFoundException: /ListShuttle.xhtml @34,14 sourceValue="#{toolBar.freeItems}": Property 'freeItems' not writable on type java.util.List), detail=(javax.el.PropertyNotFoundException: /ListShuttle.xhtml @34,14 sourceValue="#{toolBar.freeItems}": Property 'freeItems' not writable on type java.util.List)]

sourceId=j_id1:j_id4[severity=(ERROR 2), summary=(javax.el.PropertyNotFoundException: /ListShuttle.xhtml @34,14 targetValue="#{toolBar.items}": Property 'items' not writable on type java.util.List), detail=(javax.el.PropertyNotFoundException: /ListShuttle.xhtml @34,14 targetValue="#{toolBar.items}": Property 'items' not writable on type java.util.List)]

please tell me why this error is coming
and how it can be solved
or what error i am making while using list shuttle
here is my xhtml part

<h:form>

<rich:listShuttle sourceValue="#{toolBar.freeItems}"
 targetValue="#{toolBar.items}" var="i" listHeight="300"
 listWidth="300" sourceCaptionLabel="Available Items"
 targetCaptionLabel="Currently Active Items"
 >
 <rich:column>
 <h:outputText value="#{i}"></h:outputText>
 </rich:column>
 <a4j:support event="onlistchanged" reRender="toolBar" />
 <a4j:support event="onorderchanged" reRender="toolBar" />
 </rich:listShuttle>

</h:form>

here is my bean class

import java.util.ArrayList;
import java.util.List;

import javax.ejb.Stateless;

import mls.ssb.local.ListSuttleSSbLocal;

import org.jboss.seam.ScopeType;
import org.jboss.seam.annotations.Factory;
import org.jboss.seam.annotations.Name;
import org.jboss.seam.annotations.datamodel.DataModel;

@Stateless
@Name("toolBar")
public class ListSuttleSSb implements ListSuttleSSbLocal{

 @Factory(scope=ScopeType.PAGE)
 public List<String> getfreeItems() {

 //List<String> aList = new ArrayList<String>();
 OrderBySource = new ArrayList<String>();
 OrderBySource.add("Open");
 OrderBySource.add("Save");
 OrderBySource.add("Save All");
 OrderBySource.add("Delete");
 OrderBySource.add("Delete All");
 System.out.println("Target List::"+OrderBySource);
 return OrderBySource;

 }

 @Factory(scope=ScopeType.PAGE)
 public List<String> getItems() {

 OrderByTarget = new ArrayList<String>();
 OrderByTarget.add("Clear");
 System.out.println("Target List::"+OrderByTarget);
 return OrderByTarget;
 }

 @DataModel
 private List<String> OrderBySource ;

 @DataModel
 private List<String> OrderByTarget;




}

import java.util.List;

public interface ListSuttleSSbLocal {
 public List<String> getfreeItems();

 public List<String> getItems();



}

[ilya_shaikovsky]

you have to implement and define converter for the listShuttle objects. Also override equals and hashCode methods properly. check richfaces-demo code.

[ilya_shaikovsky]

sorry... I've read the message wrong :(

you just have no setters for the lists in your bean.

[ashutoshdeora]

thanks for the quick reply
i will follow it
do i have to use the converter as it have been used in the demo
or this will do it for me

[ilya_shaikovsky]

yes.. previous post is also to be done in order to submit the orderingList / listShuttle components.

[ashutoshdeora]

thanks
i will make a converter and will use it

one more thing
why a converter was needed as it is shown in the demo
just tell me the logic behind this
it might help me in my cause .

[ilya_shaikovsky]

because in difference with standard select listShuttle and ordering list works with lists of your custom objects and not just lists of SelectItem.

[nbelaevski]

Even with standard JSF selects converter is necessary for objects component doesn't know hot to convert.