Issue about EL enhancement

[raffaele.camanzo]

Hi all,

I'm facing an issue using the Seam EL enhancement:

I have to create a results list, each result has a <s:link.. and the action gets, through the EL enhancement the list items as action parameter.
Instead of the booking example, I don't want to render the results a table and I use a <ui:repeat> as follows:

<ui:repeat value="#{ricercaMenu.dataList}" var="actionDataEntry">
 <li>
 <s:link action="#{ricerca.begin(actionDataEntry)}">
 <h:outputText value="#{actionDataEntry.label}"/>
 <s:conversationPropagation type="none"/>
 </s:link>
 </li>
</ui:repeat>

The list is ok, indeed, the label is present, but when I try to access to a actionDataEntry member inside the #{ricerca.begin(actionDataEntry)} I get a NullPointerException. Is this a bug or I'm missing something?

Regards,
Raffaele Camanzo

[delphi'sghost]

Does your dataList have the @DataModel annotation?

I believe this is required in order to allow things to be passed around properly, at least from my experience when I had a similar problem with null objects being passed in.

In your class for the ricercaMenu bean, you should have something like :

@DataModel
private List dataList;


This will tell seam to generate a datamodel for your dataList List, and facilitates the passing of the list item to the ricerca.begin procedure.

Does your example work with a h:dataTable ?

[lowecg2004]

Have you defined the Seam view handler in faces-config.xml?

<faces-config>
 <application>
 <view-handler>org.jboss.seam.ui.facelet.SeamFaceletViewHandler</view-handler>
 </application>
</faces-config>

However, will not work if you're using Trinidad components.