JBoss 4.0.4 GA, EJB3 RC8
Testing EJB3, Stateless & Statefull examples work, my hypersonic database is
configured and working, default datasource configured.
| java: Namespace
|
| +- XAConnectionFactory (class: org.jboss.mq.SpyXAConnectionFactory)
| +- DefaultDS (class: org.jboss.resource.adapter.jdbc.WrapperDataSource)
|
I'm trying to get an Entity EJB to write something to that datasource but I get
the following error:
17:08:46,983 WARN [ServiceController] Problem starting service
jboss.j2ee:service=EJB3,module=entity.ejb3
java.lang.RuntimeException: Field private javax.persistence.EntityManager
org.jboss.tutorial.entity.bean.ShoppingCartBean.manager @PersistenceUnit in
error: EMPTY STRING unitName but there is no deployments in scope
This is my entity bean:
Order.java
@Entity
| @Table(name = "PURCHASE_ORDER")
| public class Order implements java.io.Serializable {
|
| private static final long serialVersionUID = 1L;
| private int id;
| private double total;
| private Collection<LineItem> lineItems;
|
|
| public Order() {
| super();
| }
|
| @Id @GeneratedValue(strategy=GenerationType.AUTO)
| public int getId()
| {
| return id;
| }
|
I use it from a stateless bean that doesn't do much
| package slsb;
|
| import javax.ejb.Stateless;
| import javax.persistence.EntityManager;
| import javax.persistence.PersistenceContext;
| import entity.*;
|
| import model.Item;
|
| @Stateless
| public class SimpleStatelessBean implements SimpleStatelessBeanRemote,
SimpleStatelessBeanLocal {
|
| @PersistenceContext()
| private EntityManager em;
|
| public Item getItem(Long id) {
| Order o = new Order();
| o.setId(10);
| o.setLineItems(null);
| o.setTotal(100);
| em.persist(o);
| Item item = new Item();
| item.setId(id);
| item.setName("A Java mug");
| return item;
| }
| }
|
I thought it might be due to a missing persistence.xml file but the error is
still the same, this is my persistence.xml, but anyway I didn't think you
actually needed this (i've seen examples from the Jboss labs working without
them, is it really needed?)
<persistence>
| <persistence-unit name="BeanExamples">
| <jta-data-source>java:/DefaultDS</jta-data-source>
| <properties>
| <property name="hibernate.hbm2ddl.auto" value="create-drop"/>
| </properties>
| </persistence-unit>
| </persistence>
Any suggestions? Thanks
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