Listshuttle causes problem: looks like a defect in listshuttle

[winsterjose]

Please find my code below. The action of commandbutton is not triggered. The sourcevalue and targetvalue is a list of strings. My backing bean is having request scope.

This is the error I am getting!

Component dialog:shuttlelist has invalid value expression test1

dialog is my form id. shuttlelist is my listshuttle id. test1 is a sample value set to available item. which is a string

I can reach my action in 2 ways. Either change the scope from request to view. Or use immediate=true for commandbutton. But I dont want to use these 2. I want to stick on requestscope and immediate=true gets me empty values in backingbean.

Whats going wrong here?

<f:view>

<h:form id="dialog">

<a4j:jsFunction name="loadDialogDataJSF" action="#{dialogBean.loadDialogData}" reRender="shuttlelist"/>

<h:panelGrid>

<rich:listShuttle id="shuttlelist" sourceValue="#{dialogBean.availableItemsTest}"

          targetValue="#{dialogBean.selectedItemsTest}"

          var="items" listsHeight="150" sourceListWidth="152"

          targetListWidth="152" sourceCaptionLabel="Available Items"

          targetCaptionLabel="Selected Items">

<rich:column>             

<h:outputText value="#{items}" />

   </rich:column>                               

</rich:listShuttle>

<h:commandButton value="Submit" action="#{dialogBean.save}"/>

</h:panelGrid>

</h:form>

</f:view>

<f:view>

<rich:messages/>

<h:form id="dialog">

<a4j:jsFunction name="loadDialogDataJSF" action="#{dialogBean.loadDialogData}" reRender="shuttlelist"/>

<h:panelGrid>

<rich:listShuttle id="shuttlelist" sourceValue="#{dialogBean.availableItemsTest}"

           targetValue="#{dialogBean.selectedItemsTest}"

           var="items" listsHeight="150" sourceListWidth="152"

           targetListWidth="152" sourceCaptionLabel="Available Items"

           targetCaptionLabel="Selected Items">

<rich:column>

<h:outputText value="#{items}" />

    </rich:column>  

</rich:listShuttle> 

<h:commandButton value="Submit" action="#{dialogBean.save}"/>

</h:panelGrid>

</h:form>

</f:view>

availableItemsTest = new ArrayList<String>();

selectedItemsTest = new ArrayList<String>();

availableItemsTest.add("test1");

availableItemsTest.add("test2");

availableItemsTest.add("test3");

[winsterjose]

I dont understand what the heck is happening for listShuttle. I am able to correct the defect as below.

I was injecting the sourcevalue and targetvalue to backingbean through a a4j:jsfunction in page load through body init.

When I changed that to constructor it worked!

I am totally disappointed with the listShuttle behaviour. Either the message should be correct or else there should be proper documentation. I had to go for trial and error method always which wastes my time a lot.