Hi,
I'm having an issue deploying to JBoss 4.0.5-ejb3. When I try to inject my
EntityManager in my code:
| @PersistenceContext EntityManager em;
|
it is always null. However, if I do:
| EntityManagerFactory emf = Persistence.createEntityManagerFactory("myDS");
| em = emf.createEntityManager();
|
This is my setup:
I have a java web service that calls my Stateless Session bean. In my session
bean, I try to inject the PersistenceContext, so I can utilize my Entity Beans.
I have a .ear archive that I deploy to the server/default/deploy directory
(using JBuilder 2007) - with a .war (that contains my web service) and a .jar
that contains my beans (entity and session).
I have everything annotated according to the documentation. All of the
documentation says that it should work.
ISampleClass is the @Local Interface class.
| @Stateless (name="SampleClass")
| public class SampleClass implements ISampleClass
|
| @PersistenceContext (unitName="myDS")
| EntityManager em;
|
| public Resource findResource() {
| Resource resource = em.find(Resource.class, 1);
| return resource;
| }
| }
|
I've also tried: @TransactionAttribute (TransactionAttributeType.REQUIRED) at
the class and method level.
I wrote a client that calls the web service (Axis 1.3 client generated). It
calls the service fine, but I get a NullPointerException when it tries to call
the em.persist() method inside my stateless session bean.
Here is my persistence.xml file:
| ><persistence-unit name="myDS">
| <provider>org.hibernate.ejb.HibernatePersistence</provider>
| <jta-data-source>java:/myDS</jta-data-source>
| <properties>
| <property name="hibernate.hbm2ddl.auto"
value="validate"></property>
| <property name="hibernate.dialect"
|
value="org.hibernate.dialect.MySQLInnoDBDialect" />
| <property name="hibernate.session_factory_name"
| value="java:hibernate/HibernateFactory" />
| <property name="transaction.factory_class"
|
value="org.hibernate.transaction.JTATransactionFactory" />
| <property name="hibernate.cache.use_second_level_cache"
| value="false" />
| <property
name="hibernate.transaction.manager_lookup_class"
|
value="org.hibernate.transaction.JBossTransactionManagerLookup" />
| </properties>
| </persistence-unit>
|
I've also tried explicity setting the transaction-type to "JTA" at the
persistence-unit level, not setting the provider and leaving the properties
section empty.
Here is my mysql-ds.xml file:
| <datasources>
| <local-tx-datasource>
| <jndi-name>myDS</jndi-name>
|
<connection-url>jdbc:mysql://localhost:3306/myDB</connection-url>
| <driver-class>com.mysql.jdbc.Driver</driver-class>
| <user-name>myuser</user-name>
| <password>mypass</password>
| <connection-property
name="socketFactory">com.mysql.jdbc.NamedPipeSocketFactory</connection-property>
|
<exception-sorter-class-name>org.jboss.resource.adapter.jdbc.vendor.MySQLExceptionSorter</exception-sorter-class-name>
| <metadata>
| <type-mapping>mySQL</type-mapping>
| </metadata>
| </local-tx-datasource>
| </datasources
|
And looking at the JBoss logs with debug on I see this (which seems to me that
it's loading correctly):
anonymous wrote :
| 2007-04-24 09:00:51,656 DEBUG [org.jboss.system.ServiceController] starting
service jboss.j2ee:service=EJB3,module=MyApp.jar
| 2007-04-24 09:00:51,656 DEBUG [org.jboss.ejb3.Ejb3Module] Starting
jboss.j2ee:service=EJB3,module=MyApp.jar
| 2007-04-24 09:00:51,656 DEBUG [org.jboss.ejb3.JmxKernelAbstraction]
creating wrapper delegate for: org.jboss.ejb3.entity.PersistenceUnitDeployment
| 2007-04-24 09:00:51,656 INFO [org.jboss.ejb3.JmxKernelAbstraction]
installing MBean: persistence.units:ear=MyEar.ear,jar=MyApp.jar,unitName=myDS
with dependencies
| 2007-04-24 09:00:51,656 INFO [org.jboss.ejb3.JmxKernelAbstraction]
jboss.jca:name=pmacDS,service=DataSourceBinding
| 2007-04-24 09:00:51,656 DEBUG [org.jboss.system.ServiceController] Creating
service persistence.units:ear=MyEar.ear,jar=MyApp.jar,unitName=myDS
| 2007-04-24 09:00:51,656 DEBUG [org.jboss.system.ServiceController] adding
depends in ServiceController.register:
[jboss.jca:name=myDS,service=DataSourceBinding]
| 2007-04-24 09:00:51,656 DEBUG [org.jboss.system.ServiceController]
recording that persistence.units:ear=MyEar.ear,jar=MyApp.jar,unitName=myDS
depends on jboss.jca:name=pmacDS,service=DataSourceBinding
| 2007-04-24 09:00:51,656 DEBUG [org.jboss.ejb3.ServiceDelegateWrapper]
Creating persistence.units:ear=MyEar.ear,jar=MyApp.jar,unitName=myDS
| 2007-04-24 09:00:51,656 DEBUG [org.jboss.ejb3.ServiceDelegateWrapper]
Created persistence.units:ear=MyEar.ear,jar=MyApp.jar,unitName=myDS
| 2007-04-24 09:00:51,656 DEBUG [org.jboss.system.ServiceController] Creating
dependent components for:
persistence.units:ear=MyEar.ear,jar=MyApp.jar,unitName=myDS dependents are: []
| 2007-04-24 09:00:51,656 DEBUG [org.jboss.system.ServiceController] starting
service persistence.units:ear=MyEar.ear,jar=MyApp.jar,unitName=myDS
| 2007-04-24 09:00:51,656 DEBUG [org.jboss.ejb3.ServiceDelegateWrapper]
Starting persistence.units:ear=MyEar.ear,jar=MyApp.jar,unitName=myDS
| 2007-04-24 09:00:51,671 DEBUG
[org.jboss.ejb3.entity.PersistenceUnitDeployment] Found persistence.xml file in
EJB3 jar
| 2007-04-24 09:00:51,687 INFO [org.hibernate.ejb.Version] Hibernate
EntityManager 3.2.0.GA
| 2007-04-24 09:00:51,703 INFO [org.hibernate.cfg.annotations.Version]
Hibernate Annotations 3.2.0.GA
| 2007-04-24 09:00:51,718 INFO [org.hibernate.cfg.Environment] Hibernate
3.2.0.ga
| 2007-04-24 09:00:51,734 INFO [org.hibernate.cfg.Environment]
hibernate.properties not found
| 2007-04-24 09:00:51,734 INFO [org.hibernate.cfg.Environment] Bytecode
provider name : javassist
| 2007-04-24 09:00:51,734 INFO [org.hibernate.cfg.Environment] using JDK 1.4
java.sql.Timestamp handling
| 2007-04-24 09:00:51,828 DEBUG [org.hibernate.ejb.Ejb3Configuration]
2007-04-20 09:31:26,390 DEBUG [org.hibernate.ejb.Ejb3Configuration] Processing
PersistenceUnitInfo [
| name: myDS
| persistence provider classname: org.hibernate.ejb.HibernatePersistence
| classloader: [EMAIL PROTECTED]
url=file:/C:/jboss-4.0.5.GA/server/default/tmp/deploy/tmp30571MyEAR.ear
,addedOrder=47}
| Temporary classloader: null
| excludeUnlistedClasses: false
| JTA datasource: [EMAIL PROTECTED]
| Non JTA datasource: null
| Transaction type: JTA
| PU root URL:
file:/C:/jboss-4.0.5.GA/server/default/tmp/deploy/tmp30571MyEAR.ear-contents/MyJAR.jar
| Jar files URLs []
| Managed classes names [ <list of my classes>]
| Mapping files names []
| Properties [
| hibernate.jacc.ctx.id: MyJAR.jar
| hibernate.jndi.java.naming.factory.initial:
org.jnp.interfaces.NamingContextFactory
| hibernate.transaction.manager_lookup_class:
org.hibernate.transaction.JBossTransactionManagerLookup
| hibernate.cache.provider_class: org.hibernate.cache.HashtableCacheProvider
| hibernate.dialect: org.hibernate.dialect.MySQLInnoDBDialect
| hibernate.bytecode.use_reflection_optimizer: false
| hibernate.jndi.java.naming.factory.url.pkgs:
org.jboss.naming:org.jnp.interfaces
| hibernate.bytecode.provider: javassist
|
Any ideas?
Thanks,
Bryan
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