11:02 a.m.
I'm getting the following exception while using @DataModel with a h:dataTable
component.
Note that without the "@Out" annotations, my dataTables were always empty.
Maybe that in itself is a clue, but I don't know how to debug it further.
Also note that "document" is not null in my test case.
Is there a problem with more than one @DataModel in a bean?
Caused by: java.lang.ClassCastException: java.util.ArrayList
| at org.jboss.seam.databinding.DataModelBinder.isDirty(DataModelBinder.java:19)
| at org.jboss.seam.Component.outjectDataModelList(Component.java:973)
| at org.jboss.seam.Component.outjectDataModels(Component.java:937)
| at org.jboss.seam.Component.outject(Component.java:857)
| at
org.jboss.seam.interceptors.BijectionInterceptor.bijectTargetComponent(BijectionInterceptor.java:41)
| at sun.reflect.GeneratedMethodAccessor650.invoke(Unknown Source)
| 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.interceptors.Interceptor.aroundInvoke(Interceptor.java:90)
| at
org.jboss.seam.interceptors.SeamInvocationContext.proceed(SeamInvocationContext.java:60)
| at
org.jboss.seam.interceptors.ConversationInterceptor.endOrBeginLongRunningConversation(ConversationInterceptor.java:82)
| at sun.reflect.GeneratedMethodAccessor649.invoke(Unknown Source)
| 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.interceptors.Interceptor.aroundInvoke(Interceptor.java:90)
| at
org.jboss.seam.interceptors.SeamInvocationContext.proceed(SeamInvocationContext.java:60)
| at
org.jboss.seam.interceptors.BusinessProcessInterceptor.manageBusinessProcessContext(BusinessProcessInterceptor.java:60)
| at sun.reflect.GeneratedMethodAccessor648.invoke(Unknown Source)
| 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.interceptors.Interceptor.aroundInvoke(Interceptor.java:90)
| at
org.jboss.seam.interceptors.SeamInvocationContext.proceed(SeamInvocationContext.java:60)
| at
org.jboss.seam.interceptors.RemoveInterceptor.removeIfNecessary(RemoveInterceptor.java:39)
| at sun.reflect.GeneratedMethodAccessor647.invoke(Unknown Source)
| 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.interceptors.Interceptor.aroundInvoke(Interceptor.java:90)
| at
org.jboss.seam.interceptors.SeamInvocationContext.proceed(SeamInvocationContext.java:60)
| at
org.jboss.seam.ejb.SeamInterceptor.aroundInvokeInContexts(SeamInterceptor.java:73)
| at org.jboss.seam.ejb.SeamInterceptor.aroundInvoke(SeamInterceptor.java:45)
| at sun.reflect.GeneratedMethodAccessor675.invoke(Unknown Source)
| at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
| at java.lang.reflect.Method.invoke(Method.java:585)
| at
org.jboss.ejb3.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:118)
| at
org.jboss.ejb3.interceptor.EJB3InterceptorsInterceptor.invoke(EJB3InterceptorsInterceptor.java:63)
| at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
| at
org.jboss.ejb3.entity.TransactionScopedEntityManagerInterceptor.invoke(TransactionScopedEntityManagerInterceptor.java:54)
| at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
| at
org.jboss.ejb3.AllowedOperationsInterceptor.invoke(AllowedOperationsInterceptor.java:47)
| at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
| at org.jboss.aspects.tx.TxPolicy.invokeInOurTx(TxPolicy.java:79)
| ... 48 more
My Session Bean is:
| @Name("viewDocument")
| @Stateless
| public class ViewDocumentAction implements ViewDocument {
|
| @DataModel(value = "alerts")
| @Out
| private List alerts;
|
| @DataModelSelection(value="alerts")
| private Alert selectedAlert;
|
| @DataModel(value = "docevents")
| @Out
| private List docevents;
|
| @DataModelSelection(value="docevents")
| private DocumentEvent selectedEvent;
|
| @Out
| private Document document;
|
| @PersistenceContext
| private EntityManager em;
|
| @RequestParameter
| private String documentId;
|
| public String view() {
|
| long id = StringUtility.parseLong(documentId);
|
| document = em.find(Document.class, id);
|
| if (document != null) {
| // fetch alerts and events from db
| document.getEvents().size();
| document.getAlerts().size();
|
| alerts = new ArrayList(document.getAlerts());
| docevents = new ArrayList(document.getEvents());
| }
|
| return "/Document.xhtml";
| }
|
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