ejb-3.0

问题 On deploying EJB application on Weblogic : 12.2.1 , I am facing the exception : "Error instantiating the Persistence Provider class org.hibernate.ejb.HibernatePersistence of the PersistenceUnit entityManager: java.lang.ClassNotFoundException: org.hibernate.ejb.HibernatePersistence" I have the below configuration in persistence.xml to specify persistence provider <persistence-unit name="entityManager"> <!-- Use Hibernate persistency --> <provider>org.hibernate.ejb.HibernatePersistence<

问题 Within my method with @TransactionAttribute(TransactionAttributeType.REQUIRES_NEW) there can sometimes happen a org.eclipse.persistence.exceptions.DatabaseException due to an SQLException . I catch this exception and handle the situation by another database query. However, this query does not get through, as due to the exception, setRollbackOnly is automatically set and I am unable to commit the transaction any more at this point. In Java SE I'd do an explicit manager.getTransaction()

问题 I have a requirement to update the EJB version of an application which has a schema version of 2.4, the ejb version being upgraded to is 3.0 which uses annotations, in order for the annotations to be read I need to upgrade the web app version to 2.5. When I do that and go to redeploy the app I see a out of memory error. Can anyone push me in the right direction as to what is happening here? 00000034 annotations I ArchiveInputStreamData mapData Collision on [ .class ] in [ Demo.war ] 00000034

问题 I'm building little framework for data processing with EJB 3. I have Entity Access Object tier which abstracts from data source. Now I need some kind of factory which will give me right bean to query entities. Is it safe to pass looked up through JNDI local bean interfaces as parameters to another local beans? Will each method invocation from this local interface be addressed to the same bean or each call will be passed to different stateless beans as in @EJB occasion? 回答1: You don't have any

问题 when I invoke list page I get this error ,also program running but some progresses arent working and redirect debug page ,I couldnt fix it ,anybody know this error,what does it mean INFO: EJB5018: An exception was thrown during an ejb invocation on [EjbSynchronizations] INFO: javax.ejb.EJBException: nested exception is: java.lang.IllegalStateException: EJB is already associated with an incomplete transaction java.lang.IllegalStateException: EJB is already associated with an incomplete

问题 I have an EJB3 project (EAR packaging of JARs, no WARs) that I'm trying to integrate Flyway (database migrations) into. I've tried a couple of options to create a hook where I can run code before Hibernate starts doing its thing (binding to entities etc); Using the @StartUp annotation. This unfortunately gets run AFTER the JPA startup. ServletContextListener / @WebListener . But of course you need a WEB-INF/ directory for that to work. Looked at using the @DependsOn annotation to see if I

问题 I have created a Java Web project with just one class. If I compile and deploy the WAR to JBoss everything works fine. However, if I make the class @Stateless, JBoss deployment fails with the error. java.lang.IllegalArgumentException: EntityManagerFactory cannot be null I am (by now) sure that I must be doing something very stupid but I cannot see what my problem is. Update : Must be something with the installation I have been given. Works fine on a local install of JBoss 6. Larger stacke

问题 Client app package com.jeet.client; import java.util.Properties; import javax.naming.Context; import javax.naming.InitialContext; import javax.naming.NamingException; import com.jeet.interfaces.HelloWorldRemoteBean; import com.jeet.org.HelloWorldBean; public class EJBApplicationClient { public static void main(String[] args) { HelloWorldRemoteBean bean = doLookup(); System.out.println(bean.sayHello()); // 4. Call business logic } private static HelloWorldRemoteBean doLookup() { Properties

问题 My application server is WebSphere Application Server V8. I have a session scoped managed bean in which I have injected EJB (EJB 3.0) using @EJB annotation. EJB is stateless. @ManagedBean @SessionScoped public class MyBean extends BaseBackingBean implements Serializable { @EJB private IDetails custInfo; I was analyzing the session data and noticed NotSerializableException java.io.NotSerializableException: com.ejb.EJSLocal0SLDetailsImpl_081f812d at java.io.ObjectOutputStream.writeObject0

问题 I'd like to know whether it is possible to get a reference to the ejb3 local business interfaces inside the jca adapter? Resource adapter and ejb .jar are packed into the same .ear . Application is running under WebSphere AS 6.1 with ejb3 featurepack. I have tried to use ejblocal:<full_class_name_of_local_interface> as JNDI name, but without success. 回答1: What you are trying to do is probably conceptually wrong . JCA adapter should not depend on EJB -- a JCA adapter should not lookup an EJB.