3 Replies Latest reply on Jun 17, 2009 7:45 PM by gonorrhea

    injecting session-scoped component into conversation-scoped component

    gonorrhea
    gonorrhea Jun 17, 2009 6:34 PM

      I have the following component:


      @Name("manageSiteId")
@Stateful
@Scope(ScopeType.SESSION)
@AutoCreate
public class ManageSiteIdAction implements ManageSiteIdLocal{...}



      which is being injected into this component:


      @Stateful
@Name("manageEquipment")
@Scope(ScopeType.CONVERSATION)
@SuppressWarnings("unchecked")
public class ManageEquipmentAction implements ManageEquipmentLocal {...}



      ManageEquipment.xhtml:


      <h:form>
               <h:panelGrid columns="2" style="vertical-align:top; float: right;">
                    <h:outputText value="Current Site: " />                         
                    <h:selectOneMenu value="#{manageSiteId.selectedListValueForSiteId}">
                         <s:selectItems var="lv"
                              value="#{populateDropDown.getListValueList('SITES')}"
                              label="#{lv.description}"
                              noSelectionLabel="Please Select..." />                                                                                
                         <s:convertEntity />
                         <a4j:support event="onchange" action="#{manageSiteId.changeSiteId()}"/>
                    </h:selectOneMenu>
               </h:panelGrid>
          </h:form>



      The problem has to do with the setting (displaying of selected) of HtmlSelectOneMenu component.  Sometimes it's showing the set/selected property, sometimes it's not.  Seems like a bug but it was working before I refactored the code into two SFSB components.  I ran it thru the debugger and not sure why it's not working in some cases.


      The other interesting thing is that if I don't use the @Begin(join=true) annotation in the session-scoped component, the selected value for the drop down never displays.


      Must a session-scoped component join the LRC to be injected in and used in a conversation-scoped component?


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        • 1. Re: injecting session-scoped component into conversation-scoped component
          gonorrhea
          gonorrhea Jun 17, 2009 6:42 PM (in response to gonorrhea)

          I changed the code to the following:


          @Name("manageSiteId")
@Stateful
@Scope(ScopeType.CONVERSATION)
@AutoCreate
public class ManageSiteIdAction implements ManageSiteIdLocal{...}



          and removed the @Begin(join=true) annotations from the two business methods, and now the drop-down magically behaves properly (the drop down value is properly set and displayed in different situations).


          We actually want the properties associated with HtmlSelectOneMenu and that component to be session-scoped.  How can I fix this problem and use an injected session-scoped component?


          pages.xml:


          <page view-id="/ManageEquipment.xhtml">
         <description>Manage Equipment</description>
         <!-- <action execute="#{manageEquipment.init}" if="#{not manageEquipment.isInitComplete()}"/> -->
         <begin-conversation join="true"/>
         <action execute="#{manageSiteId.init}"/>                  
         <navigation from-action="#{manageEquipment.processRepairHistorySelection}">
              <redirect view-id="/RepairCaseDetails.xhtml"/>                          
        </navigation>
        
        <navigation from-action="#{manageEquipment.searchSerialNumber}">
             <redirect view-id="/ManageEquipment.xhtml"/>
        </navigation>
        
    </page>

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          • 2. Re: injecting session-scoped component into conversation-scoped component
            gonorrhea
            gonorrhea Jun 17, 2009 7:00 PM (in response to gonorrhea)

            well apparently you should be able to inject a session-scoped component into a conversation-scoped component.  I checked the older version of my code and it works as intended.


            still not sure exactly what's causing the anomalous behavior (now on to backfactoring!)

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            • 3. Re: injecting session-scoped component into conversation-scoped component
              gonorrhea
              gonorrhea Jun 17, 2009 7:45 PM (in response to gonorrhea)

              I fixed it but not sure how.  Anyways, I'm wondering if non-matching scoped injection will be supported in Seam 3 and/or Web Beans???

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