[jboss-user] [JBoss Seam] - Another conversation question ...

[greko]

Hi all !

I have a screen displaying a list of devices. A device can be edited (from a button in the datatable)
When a submit a find on my deviceList screen, I start a new conversation.
When I edit a device, a create a nested conversation : once on my edit screen, I want to be able to go back to my previous search (aka the parent conversation).

The problem :
When a perform a save, on my edit screen, everything seems ok (faces message ok, entity updated). But then, when I click on my cancel/back button, to go back to my list, it is empty ... I mean, everything is still in the conversation (my search panel, even the rowCount of the list) but the list contains null elements ...

Here is part of my code :

pages.xml

  | ...
  |     <page view-id="/parc_deviceList.xhtml" no-conversation-view-id="/parc_deviceList.xhtml">
  |         <description>Device Search (Results: #{deviceSearch.rowCount})</description>
  |     </page>
  | ...
  |     <page view-id="/parc_deviceEdit.xhtml">
  |         <description>Edit Device</description>
  |         <param name="deviceId" value="#{deviceHome.deviceId}"/>
  |         <action execute="#{deviceHome.init}"/>
  |         <begin-conversation flush-mode="MANUAL" join="true"/>
  |         <navigation>
  |             <rule if-outcome="updated">
  |                 <redirect view-id="/parc_deviceEdit.xhtml">
  |                 </redirect>
  |             </rule>
  |         </navigation>
  |     </page>
  | ...
  | 

parc_deviceList.xhtml

  | ...
  |                 <h:commandLink id="find" styleClass="button"
  |                                action="#{deviceSearch.find()}"
  |                                tabindex="6">
  |                   <s:conversationPropagation type="join" />
  |                   <h:outputText styleClass="buttonLabel" value="#{messages['findButton']}"/>
  |                 </h:commandLink>
  | ...
  |       <h:dataTable id="deviceTable" var="d"
  |                    value="#{devicesList}"
  | ...
  |           <h:column>
  |               <f:facet name="header"> </f:facet>
  | 
  |               <s:link view="/parc_deviceEdit.xhtml" propagation="nest" title="#{messages['device.edit']}">
  |                 <h:graphicImage value="/img/bt_mini_edit.gif" style="border:0; padding:2px;" />
  |                 <f:param name="deviceId" value="#{d.id}"/>
  |               </s:link>
  |           </h:column>
  | ...
  | 

parc_deviceEdit.xhtml

  |     <h:form id="deviceEditForm">
  |       <div class="formFields wideLabels formBorder">
  |         <s:validateAll>
  | ...
  |         </s:validateAll>
  |       </div>
  |       
  |       <div class="formControls wideLabels">
  |         <div class="entry">
  |           <div class="label"> </div>
  |           <div class="input">
  |             <h:commandLink id="update" styleClass="button"
  |                            action="#{deviceHome.update}"
  |                            tabindex="9">
  |               <span class="buttonLabel">#{messages['saveButton']}</span>
  |             </h:commandLink>
  | 
  |             <s:link id="cancel" styleClass="button" view="/parc_deviceList.xhtml"
  |                     tabindex="9">
  |               <span class="buttonLabel">#{messages['cancelButton']}</span>
  |             </s:link>
  |           </div>
  |         </div>
  |       </div>
  | 
  | 

DeviceHome.java

  | @Name("deviceHome")
  | @Scope(ScopeType.CONVERSATION)
  | public class DeviceHome extends EntityHome<RTHDevice> {
  |     
  |     @Logger
  |     private Log logger;
  |     
  |     
  |     public Long getDeviceId() {
  |         return (Long)getId();
  |     }
  | 
  |     public void setDeviceId(Long deviceId) {
  |         setId(deviceId);
  |     }
  | 
  |     public void init() {
  |         logger.debug("DeviceHome.init()");
  |         
  |         if (isManaged()) {
  |         } else {
  |         }
  |     }
  |     
  |     public String persist() {
  |         logger.debug("DeviceHome.persist()");
  |         getInstance().setActive(0);
  |         
  |         return super.persist();
  |     }
  |     
  |     public String update() {
  |         logger.debug("DeviceHome.update()");
  |         return super.update();
  |     }
  | }
  | 

DeviceSearchAction.java

  | @Stateful
  | @Scope(ScopeType.CONVERSATION)
  | @Name("deviceSearch")
  | @Restrict("#{identity.loggedIn}")
  | public class DeviceSearchAction implements DeviceSearch, Serializable {
  | ...
  |     @DataModel
  |     List<RTHDevice> devicesList;
  | ...
  | 

I can't figure out why this happens.
Could you help me a few ?

I'm currently using seam 2.0.0.CR1 on JBoss 4.2.1.GA.

Thanks for your help !

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