Base is null
I`m having a problem while trying to run my application (Seam 1.2.1) on JBoss 4.0.5.
Let the code explain...
controllertest.jsp (jsf)
<%@page contentType="text/html"%>
<%@page pageEncoding="UTF-8"%>
<%@taglib prefix="f" uri="http://java.sun.com/jsf/core"%>
<%@taglib prefix="h" uri="http://java.sun.com/jsf/html"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<body>
<f:view>
<h:form id="controller">
<p>
<h:commandButton value="Add new category (QuestionCategoryManger)" action="#{QuestionCategoryManager.test}"/>
</p>
</h:form>
</f:view>
</body>
</html>
QuestionCategoryManager
import java.util.List;
import javax.ejb.Local;
@Local
public interface QuestionCategoryManager {
String test();
void addCategory(String categoryName);
void removeCategory(long id, boolean withQuestions);
void removeCategory(String categoryName, boolean withQuestions);
QuestionCategory getQuestionCategoryById(long id);
QuestionCategory getQuestionCategoryByName(String categoryName);
List<QuestionCategory> getAllQuestionsCategories();
}
QuestionCategoryControllerBean
mport javax.ejb.Stateless;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;
/**
*
* @author W17chM4n
*/
@Stateless(name="QuestionCategoryManger")
public class QuestionCategoryManagerBean implements QuestionCategoryManager {
@PersistenceContext
private EntityManager em;
public String test() {
return "success";
}
public void addCategory(String categoryName) {
em.persist(new QuestionCategory(categoryName));
}
public void removeCategory(long id, boolean withQuestions) {
}
public void removeCategory(String categoryName, boolean withQuestions) {
}
public QuestionCategory getQuestionCategoryByName(String categoryName) {
return (QuestionCategory)em.createQuery("from QuestionCategory q where q.categoryName='" + categoryName + "'").getSingleResult();
}
public QuestionCategory getQuestionCategoryById(long id) {
return (QuestionCategory)em.createQuery("from QuestionCategory q where q.id="+String.valueOf(id)).getSingleResult();
}
public List<QuestionCategory> getAllQuestionsCategories() {
return em.createQuery("from QuestionCategory q").getResultList();
}
}
So here it is. I`m building it with maven, and while deploying, everything is allright. But when i push the button i get this:
15:21:35,596 ERROR [[Faces Servlet]] Servlet.service() for servlet Faces Servlet threw exception
javax.faces.FacesException: Error calling action method of component with id controller:_idJsp0
at org.apache.myfaces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:74)
at javax.faces.component.UICommand.broadcast(UICommand.java:106)
at javax.faces.component.UIViewRoot._broadcastForPhase(UIViewRoot.java:94)
at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:168)
at org.apache.myfaces.lifecycle.LifecycleImpl.invokeApplication(LifecycleImpl.java:343)
at org.apache.myfaces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:86)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:137)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:175)
at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:74)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
at org.jboss.web.tomcat.tc5.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:156)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112)
at java.lang.Thread.run(Thread.java:595)
Caused by: javax.faces.el.EvaluationException: Exception while invoking expression #{QuestionCategoryManager.test}
at org.apache.myfaces.el.MethodBindingImpl.invoke(MethodBindingImpl.java:165)
at org.jboss.seam.actionparam.ActionParamBindingHelper.invokeTheExpression(ActionParamBindingHelper.java:58)
at org.jboss.seam.actionparam.ActionParamMethodBinding.invoke(ActionParamMethodBinding.java:75)
at org.apache.myfaces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:63)
... 25 more
Caused by: javax.faces.el.PropertyNotFoundException: Base is null: QuestionCategoryManager
at org.apache.myfaces.el.ValueBindingImpl.resolveToBaseAndProperty(ValueBindingImpl.java:460)
at org.apache.myfaces.el.MethodBindingImpl.resolveToBaseAndProperty(MethodBindingImpl.java:180)
at org.apache.myfaces.el.MethodBindingImpl.invoke(MethodBindingImpl.java:114)
... 28 more
I don`t know why seam can`t find ejb bean. Is there a way to test if SeamInterceptor is running ?
JNDI Namespace tells that the bean exists:
+- Inquisitor (class: org.jnp.interfaces.NamingContext) | +- QuestionCategoryManger (class: org.jnp.interfaces.NamingContext) | | +- local (proxy: $Proxy191 implements interface com.blstream.inquisitor.ejb3.interfaces.QuestionCategoryManager,interface org.jboss.ejb3.JBossProxy,interface javax.ejb.EJBLocalObject)
Can anybody help me ?
