[jboss-user] [JBoss Seam] - Re: looking for non-EJB SEAM example...

[Sammy8306]

Okay, I'm rewriting the JPA example towards my intended use. Only, Hibernate is giving me this exception:

javax.persistence.PersistenceException: org.hibernate.HibernateException: The chosen transaction strategy requires access to the JTA TransactionManager

Which seems natural, since there is no reference to a JTA provider in my persistence.xml:


  | <?xml version="1.0" ?>
  | 
  | <persistence xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd" version="1.0">
  | 	<persistence-unit name="blog" transaction-type="JTA">
  | 		<provider>org.hibernate.ejb.HibernatePersistence</provider>
  | 		<class>org.blog.domainclasses.BlogEntry</class><class>org.blog.domainclasses.Tag</class><class>org.blog.domainclasses.Reply</class><class>org.blog.domainclasses.User</class>
  | 		<properties>
  | 		        <property name="hibernate.archive.autodetection" value=""/>
  | 			<property name="hibernate.show_sql" value="true"/>
  | 			<property name="hibernate.format_sql" value="true"/>
  | 			<property name="hibernate.connection.driver_class" value="org.hsqldb.jdbcDriver"/>
  | 			<property name="hibernate.connection.url" value="jdbc:hsqldb:hsql://localhost/blogjpa"/>
  | 			<property name="hibernate.connection.username" value="sa"/>
  | 			<property name="hibernate.c3p0.min_size" value="5"/>
  | 			<property name="hibernate.c3p0.max_size" value="20"/>
  | 			<property name="hibernate.c3p0.timeout" value="300"/>
  | 			<property name="hibernate.c3p0.max_statements" value="50"/>
  | 			<property name="hibernate.c3p0.idle_test_period" value="3000"/>
  | 			<property name="hibernate.dialect" value="org.hibernate.dialect.HSQLDialect"/>
  | 			<property name="hibernate.hbm2ddl.auto" value="create"/>
  | 		</properties>
  | 	</persistence-unit>
  | </persistence>
  | 

In the persistence.xml of the JPA example, this line is added:


  | <jta-data-source>java:/DefaultDS</jta-data-source>
  | 

However, this is the datasource I'm not defining through the microcontainer... how can I link to the JTA implementation without having to reference such a datasource? Judging from the schema definition for persistence.xml there is no such possibility?

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