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I have a web application using JPA and JTA with Spring. I would like to support both JBoss and Tomcat. When running on JBoss, I'd like to use JBoss' own TransactionManager, and when running on Tomcat, I'd like to use JOTM.

I have both scenarios working, but I now find that I seem to need two separate Spring configurations for the two cases. With JOTM, I need to use Spring's JotmFactoryBean:

<bean id="transactionManager" 
 class="org.springframework.transaction.jta.JtaTransactionManager">
    <property name="userTransaction">
        <bean class="org.springframework.transaction.jta.JotmFactoryBean"/>
    </property>
</bean>

In JBoss, though, I just need to fetch "TransactionManager" from JNDI:

<bean id="transactionManager" 
 class="org.springframework.transaction.jta.JtaTransactionManager">
    <property name="transactionManager">
        <bean class="org.springframework.jndi.JndiObjectFactoryBean">
             <property name="resourceRef" value="true" />
             <property name="jndiName" value="TransactionManager" />
             <property name="expectedType" 
               value="javax.transaction.TransactionManager" />
        </bean>
    </property>
</bean>

Is there a way to configure this so that the appropriate TransactionManager - JBoss or JOTM - is used, without the need for two different configuration files?