[news.eclipse.rt.eclipselink] Re: Eclipselink JTA without jndi

[depstei2@xxxxxxx (Daniel )]

We were able to do this by extending the 
org.eclipse.persistence.transaction.JTATransactionController
and returning the spring jta manager 
package org.foo;
public class MyJtaTransactionController extends JTATransactionController {
   private static TransactionManager tm;
	
   @Override
   protected TransactionManager acquireTransactionManager() throws 
Exception {
       return tm;
   }
   
   public static TransactionManager getTm() {
	return tm;
   }

   public static void setTm(TransactionManager tm) {
       MyJtaTransactionController.tm = tm;
   }
}

This class is used by eclipselink if you define the property:
eclipselink.target-server=org.foo.MyJtaTransactionController

In your spring config you can inject the transaction manager into the 
static fields
	<bean 
class="org.springframework.beans.factory.config.MethodInvokingFactoryBean">
		<property name="targetClass" value="org.foo.MyJtaTransactionController"/>
		<property name="targetMethod" value="setTm"/>
		<property name="arguments">
			<list>
				<ref bean="MyTxMgr"/>
			</list>
		</property>
	</bean>

You might also need to set a post processor to set the datasource correctly
public class MyPersistenceUnitPostProcessor implements 
PersistenceUnitPostProcessor {

   private DataSource jtaDataSource;
   
   public void postProcessPersistenceUnitInfo(MutablePersistenceUnitInfo 
mutablePersistenceUnitInfo) {
       mutablePersistenceUnitInfo.setJtaDataSource(getJtaDataSource());
   }

   public DataSource getJtaDataSource() {
       return jtaDataSource;
   }

   public void setJtaDataSource(DataSource jtaDataSource) {
       this.jtaDataSource = jtaDataSource;
   }
}

	<bean id="postProcessorList" class="java.util.ArrayList">
		<constructor-arg index="0">
			<list>
				<bean id="myPostProcessor"
					class="org.foo.MyPersistenceUnitPostProcessor">
					<property name="jtaDataSource"
						ref="dataSource" />
				</bean>
			</list>
		</constructor-arg>
	</bean>
	<bean id="entityManagerFactory"
		class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
..
		<property name="persistenceUnitPostProcessors" ref="postProcessorList" />
	</bean>

Good luck!