seam & tomcat & no ejb3 -> EntityManager configuration problem

[martinvich]

Hello, i would like to try use Seam with Spring (and without ejb3) on Tomcat. There is not much information about using Seam without ejb3. I have some configuration issues, could you check if my configuration does make sense ?

I have this exception when server starts :

SEVERE: Exception sending context initialized event to listener instance of class org.jboss.seam.servlet.SeamListener
org.jboss.seam.InstantiationException: Could not instantiate Seam component: MY_EntityManagerFactory
.
.
.
Caused by: javax.persistence.PersistenceException: No Persistence provider for EntityManager named seamSpringProject-PU

context.xml

<Resource 
          name="MyCustomContextRecource" 
          auth="Container"
          type="javax.sql.DataSource" 
          maxActive="100" maxIdle="30"
          maxWait="10000" 
          username="root" password = "root"
          driverClassName="com.mysql.jdbc.Driver" 
          url="jdbc:mysql://localhost:3306/recepce"/>

persistence.xml

   <persistence-unit name="seamSpringProject-PU" transaction-type="RESOURCE_LOCAL">
      <provider>org.hibernate.ejb.HibernatePersistence</provider>
      <jta-data-source>java:comp/env/MyCustomContextRecource</jta-data-source>
      <properties>
         <property name="hibernate.dialect" value="org.hibernate.dialect.MySQLDialect"/>
         <property name="hibernate.hbm2ddl.auto" value="update"/>
         <property name="hibernate.show_sql" value="true"/>
         <property name="hibernate.format_sql" value="true"/>
      </properties>
   </persistence-unit>

components.xml

   <core:init debug="true" jndi-pattern="java:comp/env/#{ejbName}"/>

   <component name="org.jboss.seam.debug.hotDeployFilter">
      <property name="urlPattern">*.seam</property>
   </component>

   <transaction:entity-transaction entity-manager="#{MY_entityManager}"/>

   <persistence:managed-persistence-context name="MY_entityManager"
                                     auto-create="true"
                          entity-manager-factory="#{MY_EntityManagerFactory}"/>

   <persistence:entity-manager-factory name="MY_EntityManagerFactory"
                      persistence-unit-name="seamSpringProject-PU"/>
    
    
  <core:manager concurrent-request-timeout="500"
                 conversation-timeout="120000"
                 conversation-id-parameter="cid"
                 parent-conversation-id-parameter="pid"/>
    

I would like to use configuration described above to create a small web application.
I need Seam because is easy for me to implement all ajax/pageflow things, and when i will need implement some transaction things i can easily use Spring.