2 Replies Latest reply on Nov 6, 2009 5:09 PM by Rafael de Carvalho

    Getting null entity manager

    Rafael de Carvalho Newbie

      Hello everyone!


      I'm trying to setup a jboss seam configuration with tomcat 6.0. Based on 'jboss-seam-jpa' example. And now almost everything working :)


      I've solved a bunch of issues by searching in the forum, but this one I can't solve.


      When I'm try to inject entityManager on beans that extends classes of seam framework, such as EntityQuery or EntityHome, I'm getting this error:


      org.jboss.seam.InstantiationException: Could not instantiate Seam component: carteiraHome
           at org.jboss.seam.Component.newInstance(Component.java:2106)
           at org.jboss.seam.Component.getInstance(Component.java:1988)
      ...
      Caused by: java.lang.IllegalStateException: entityManager is null
           at org.jboss.seam.framework.EntityHome.create(EntityHome.java:33)
           at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
           at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
      ...
      



      Here's my component.xml


      <?xml version="1.0" encoding="UTF-8"?>
      <components xmlns="http://jboss.com/products/seam/components"
                  xmlns:core="http://jboss.com/products/seam/core"
                  xmlns:persistence="http://jboss.com/products/seam/persistence"
                  xmlns:transaction="http://jboss.com/products/seam/transaction"
                  xmlns:security="http://jboss.com/products/seam/security"
                  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
                  xmlns:ui="http://jboss.com/products/seam/ui"
                  xsi:schemaLocation=
                      "http://jboss.com/products/seam/core http://jboss.com/products/seam/core-2.1.xsd 
                       http://jboss.com/products/seam/persistence http://jboss.com/products/seam/persistence-2.1.xsd 
                       http://jboss.com/products/seam/transaction http://jboss.com/products/seam/transaction-2.1.xsd 
                       http://jboss.com/products/seam/security http://jboss.com/products/seam/security-2.1.xsd
                       http://jboss.com/products/seam/components http://jboss.com/products/seam/components-2.1.xsd">
      
          <core:manager conversation-timeout="120000" 
                        concurrent-request-timeout="500"
                        conversation-id-parameter="cid"/>
                        
          <transaction:entity-transaction 
               entity-manager="#{em}"/>
                                          
          <persistence:entity-manager-factory name="bookingDatabase"/>
          
          <persistence:managed-persistence-context
                              name="em"
                          auto-create="true" 
                          entity-manager-factory="#{bookingDatabase}"
                          persistence-unit-jndi-name="java:/jpaBookingEntityManagerFactory"/>
                          
          <security:identity authenticate-method="#{authenticator.authenticate}"/>  
          
      </components>
      
      



      thanks in advance! :)