0 Replies Latest reply on Jun 18, 2008 2:59 PM by Kevin Corby

    Accessing EntityManagerFactory from Seam Interceptor

    Kevin Corby Newbie

      I am writing an interceptor that needs to access an entitymanagerfactory. How can I accomplish this?


      Here is some of my relevant code, in which you can see a couple of the approaches I have tried that don't work.


      package com.ccri.gotm.hibernate4gwt;
      
      import java.io.Serializable;
      import javax.naming.InitialContext;
      import javax.persistence.EntityManagerFactory;
      import net.sf.hibernate4gwt.core.HibernateBeanManager;
      import net.sf.hibernate4gwt.core.LazyKiller;
      import org.jboss.seam.Component;
      import org.jboss.seam.annotations.intercept.AroundInvoke;
      import org.jboss.seam.annotations.intercept.Interceptor;
      import org.jboss.seam.async.AsynchronousInterceptor;
      import org.jboss.seam.intercept.AbstractInterceptor;
      import org.jboss.seam.intercept.InvocationContext;
      
      @Interceptor(stateless = true, around = AsynchronousInterceptor.class)
      public class RemoveHibernateTypesInterceptor extends AbstractInterceptor implements Serializable {
          private InitialContext context;
          
          @AroundInvoke
          public Object aroundInvoke(InvocationContext invocation) throws Exception {
              context = new InitialContext();
              EntityManagerFactory emf = (EntityManagerFactory) context.lookup("java:/entityManagerFactory");
              //EntityManagerFactory emf = (EntityManagerFactory) Component.getInstance("entityManagerFactory");
              HibernateBeanManager hbm = HibernateBeanManager.getInstance();
              hbm.setEntityManagerFactory(emf);
              LazyKiller lazyKiller = new LazyKiller(null, hbm.getPersistenceUtil());
              Object o = invocation.proceed();
              o = lazyKiller.detach(o);
              return o;
          }
      }
      




      <?xml version="1.0" encoding="windows-1252"?>
      <components xmlns="http://jboss.com/products/seam/components" 
          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
          xmlns:security="http://jboss.com/products/seam/security" 
          xmlns:core="http://jboss.com/products/seam/core"
          xmlns:spring="http://jboss.com/products/seam/spring">
      
          <spring:context-loader config-locations="/applicationContext.xml"/>
          <core:entity-manager-factory name="entityManagerFactory"
              persistence-unit-name="gotm-ejb" persistence-unit-jndi-name="java:/entityManagerFactory" />
          <security:identity authenticate-method="#{authManager.login}"/>
      </components>