1 Reply Latest reply on Oct 1, 2008 1:36 PM by swd847

    Param Element In Pages.xml Causing Reflection Error

    leesy
    leesy Oct 1, 2008 11:58 AM

      Hi all,


      I'm having a problem with my Seam code and I can't seem to figure out what I'm doing wrong.  It's doing my head in :)  Here's an excerpt of the stack trace (can post the whole thing if it helps):


      Caused by: java.lang.IllegalArgumentException: Can not set java.lang.Long field com.oobjects.sso.manager.home.PresenceHome.customerId to java.lang.String



      I'm trying to get a parameter set on my URL passed into one of my beans.  To do this, I've got the following set up in my pages.xml:


      <page view-id="/customer/presences.xhtml">
  <begin-conversation flush-mode="MANUAL" join="true" />
  <param name="customerId" value="#{presenceHome.customerId}" />
  <raise-event type="PresenceHome.init" />
  <navigation>
    <rule if-outcome="persisted">
      <end-conversation />
      <redirect view-id="/customer/presences.xhtml" />
    </rule>
  </navigation>
</page>



      My bean starts like this:


      @Name("presenceHome")
@Scope(ScopeType.CONVERSATION)
public class PresenceHome extends EntityHome<Presence> implements Serializable {
  @In
  private CustomerDao customerDao;
  
  @In(required = false)
  private Long presenceId;
    
  @In(required = false)
  private Long customerId;
    
  private Customer customer;
    
  // Getters, setters and other methods follow. They return the correct types defined above
}



      Finally the link I use to link one one page to the next looks like this:


      <s:link styleClass="#{selected == 'presences' ? 'selected' : ''}"
    view="/customer/presences.xhtml" title="Presences" propagation="none">
    <f:param name="customerId" value="#{customerId}" />
    Presences
</s:link>



      All this seems to work fine.  When I hover over the link above in my page, I get a URL ending in something like '?customerId=123'.  So the parameter is being passed over and it's something that can be easily converted into a Long type.  But for some reason, it's not.  I've done similar things to this before in other projects and it's worked then.  I just can't see what it isn't working now.


      If I remove the <param> element from my page declaration, I get through to the page fine.  This also seems to be something that is happening intermediately (although I could be wrong here).


      So, does anyone have any thoughts?