I am having some difficulties with deleting items using EntityHome. If someone can offer some ideas as to what is going on here I would appreciate it. What I am trying to do is pass an id to the entity home (which is happening) and then I expect it to delete that entity (which is not happening).

It seems to call the delete method, and I actually get this message back:

13:35:52,566 INFO  [DefaultDeleteEventListener] handling transient entity in delete processing
13:35:52,566 WARN  [PermissionManager] no permission store available - please install a PermissionStore with the name 'org.jboss.seam.security.jpaPermissionStore' if permission management is required.
13:35:52,566 INFO  [BloodUnitHome] BloodUnitHome.getId, bloodUnitId = 7
13:35:52,583 INFO  [BloodUnitHome] BloodUnitHome.remove, response = removed

...but when I check the database nothing is actually deleted

I suspect this is telling me that I am deleting a temporary, transient entity. But I thought that passing the id to home and modifying the getId method automatically indicated to the home that this was an existing object. What am I not understanding/missing about this?

EntityHome:

@Name("bloodUnitHome")
public class BloodUnitHome extends EntityHome<BloodUnit>
{
    @RequestParameter
    Long bloodUnitId;

    @Override
    public Object getId()
    log.info("BloodUnitHome.getId, bloodUnitId = " + bloodUnitId );
    {
         if (bloodUnitId == null)
        {
            return super.getId();
        }
        else
        {
            return bloodUnitId;
        }
    }
 ...
}

XHTML Page:

...
<rich:dataTable
     id="bloodUnitList" var="bloodUnit"
     value="#{bloodUnitList.resultList}" sortMode="multi"
     rendered="#{not empty bloodUnitList.resultList}" rows="10">
...
     <rich:column rendered="#{s:hasPermission('blood.entry', 'delete')}">
          <a4j:commandLink id="delete" value="Delete"
               action="#{bloodUnitHome.remove}" immediate="true" styleClass="smalltext">
               <f:param name="bloodUnitId" value="#{bloodUnit.id}"/>
               <a4j:support event="onviewactivated"
                    reRender="bloodUnitList,messages" />
          </a4j:commandLink>
     </rich:column>
...
</rich:dataTable>
...