Seam 2.0.GA
Hello all,
I am accessing Hibernate session via JPA delegate as suggested in chapter 8.4.
So I have the following lines in my components.xml:
| <persistence:managed-persistence-context name="entityManager"
auto-create="true"
persistence-unit-jndi-name="java:/EntityManagerFactories/Argos3EJBPU" />
| <factory name="session" scope="STATELESS" auto-create="true"
value="#{entityManager.delegate}" />
|
This allows the Hibernate session to be injected into my Session Bean.
This worked very well for me until I first time used an EVENT scoped stateful
session bean.
With the event scoped bean, there is a problem in the @Remove method (the
method is empty, but Seam requires one to be there) which gives the following
exception:
| 13:02:25,091 WARN [Component] Exception calling stateful session bean
default @Remove method: aufgabenliste
| javax.ejb.EJBException: javax.el.ELException: Error reading 'delegate' on
type org.jboss.seam.persistence.EntityManagerProxy
| at
org.jboss.ejb3.tx.Ejb3TxPolicy.handleExceptionInOurTx(Ejb3TxPolicy.java:63)
| at org.jboss.aspects.tx.TxPolicy.invokeInOurTx(TxPolicy.java:83)
| ...
| Caused by: javax.el.ELException: Error reading 'delegate' on type
org.jboss.seam.persistence.EntityManagerProxy
| at javax.el.BeanELResolver.getValue(BeanELResolver.java:66)
| at javax.el.CompositeELResolver.getValue(CompositeELResolver.java:53)
| at
com.sun.faces.el.FacesCompositeELResolver.getValue(FacesCompositeELResolver.java:64)
| at
org.jboss.el.parser.AstPropertySuffix.getValue(AstPropertySuffix.java:53)
| at org.jboss.el.parser.AstValue.getValue(AstValue.java:67)
| at
org.jboss.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:186)
| at org.jboss.seam.core.Expressions$1.getValue(Expressions.java:112)
| at org.jboss.seam.Component.getInstanceFromFactory(Component.java:1906)
| ...
| Caused by: java.lang.IllegalStateException: EntityManager is closed
| at
org.hibernate.ejb.EntityManagerImpl.getSession(EntityManagerImpl.java:42)
| at
org.hibernate.ejb.AbstractEntityManagerImpl.getDelegate(AbstractEntityManagerImpl.java:570)
| at
org.jboss.seam.persistence.EntityManagerProxy.getDelegate(EntityManagerProxy.java:95)
| ...
|
Am I doing something wrong or is this an error?
Marcus.
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