[jboss-user] [JBoss Seam] - setParameter: weird query behaviour

Hi folks, I am using Seam, JBoss AS, Facelets, MyFaces and would like to create application-scoped components (lists with salutations, titles etc.) for filling dropdown lists. I am doing that by having a SLSB with a @Factory method that initially fills my outjected variable "salutationItems". In the @Factory method I call "createQuery": Query query = em.createQuery("SELECT new javax.faces.model.SelectItem(s.value, s.label) FROM StringListItem s WHERE s.listType = 'SALUTATION' ORDER BY s.label"); | salutationItems = query.getResultList(); | In this case everything works fine! But, as soon as I want to use "setParameter" instead of the hardcoded Select statement...Query query = em.createQuery("SELECT new javax.faces.model.SelectItem(s.value, s.label) FROM StringListItem s WHERE s.listType = :lType ORDER BY s.label"); | query.setParameter("lType", "SALUTATION"); | salutationItems = query.getResultList(); ...I get the error when I call the JSF page:javax.ejb.EJBTransactionRolledbackException: java.lang.ClassCastException: java.lang.String | at org.jboss.ejb3.tx.Ejb3TxPolicy.handleInCallerTx(Ejb3TxPolicy.java:93) | at org.jboss.aspects.tx.TxPolicy.invokeInCallerTx(TxPolicy.java:130) | at org.jboss.aspects.tx.TxInterceptor$Required.invoke(TxInterceptor.java:201) | at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) | at org.jboss.aspects.tx.TxPropagationInterceptor.invoke(TxPropagationInterceptor.java:76) | at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) | at org.jboss.ejb3.stateless.StatelessInstanceInterceptor.invoke(StatelessInstanceInterceptor.java:62) | at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) | at org.jboss.aspects.security.AuthenticationInterceptor.invoke(AuthenticationInterceptor.java:78) | at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) | at org.jboss.ejb3.ENCPropagationInterceptor.invoke(ENCPropagationInterceptor.java:47) | at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) | at org.jboss.ejb3.asynchronous.AsynchronousInterceptor.invoke(AsynchronousInterceptor.java:106) | at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) | at org.jboss.ejb3.stateless.StatelessContainer.localInvoke(StatelessContainer.java:181) | at org.jboss.ejb3.stateless.StatelessLocalProxy.invoke(StatelessLocalProxy.java:79) | at $Proxy496.loadSalutations(Unknown Source) | at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) | at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) | at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) | at java.lang.reflect.Method.invoke(Method.java:585) | at org.jboss.seam.util.Reflections.invoke(Reflections.java:13) | at org.jboss.seam.util.Reflections.invokeAndWrap(Reflections.java:32) | at org.jboss.seam.Component.callComponentMethod(Component.java:1334) | at org.jboss.seam.Component.getInstanceFromFactory(Component.java:1293) | at org.jboss.seam.Component.getInstance(Component.java:1260) | ... I am trying on my own for hours now and give up... Could anyone of you please help me? Thanks! PS. Here's the complete code: @Stateless | @Name("stringLists") | public class StringListManager implements StringListManagerLocal { | | @Logger | Log log; | | @PersistenceContext | private EntityManager em; | | @Out(scope = ScopeType.APPLICATION) | private List<SelectItem> salutationItems; | | @Factory("salutationItems") | public void loadSalutations() { | log.info("Start loading salutationItem"); | | Query query = em | .createQuery("SELECT new javax.faces.model.SelectItem(s.value, s.label) FROM StringListItem s WHERE s.listType = :lType ORDER BY s.label"); | query.setParameter("lType", "SALUTATION"); | | salutationItems = query.getResultList(); | | log.info("End loading salutationItem. Count: "+ salutationItems.size()); | } | } Part of the JSF page: <h:selectOneMenu id="salut"> | <f:selectItems value="#{salutationItems}" /> | </h:selectOneMenu> | View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3972126#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...