Seam managed transaction in Tomcat

[dapeng]

Hi,

I am struggling to deploy a seam sample application on Tomcat6. I always get the problem that the SeamPhaseListener failed to start a tx, because it is not able to look up a UserTransaction in the JNDI in Tomcat.

I have to add <core:init debug="true" transaction-management-enabled="false"/> into components.xml to disable the seam managed tx, but to use Spring @Transactional. I got something like "Seam Cannot create resource instance".

Can anyone explain me how to configure the tomcat to enable the seam managed transaction?

Thanx.
Dapeng

[thejavafreak]

Have you installed embedded jboss?

[dapeng]

I have jboss-embedded-all.jar in WEB-INF/lib

[pmuir]

Thats not how you install embedded jboss. Look in the Seam ref manual (Seam2 beta)

[dapeng]

Do I have to use embedded-jboss container, if I just want to use the JSF enhancements of Seam and no EJB3 functions?

My plan is to have a JPA POJO and service layer completely managed by Spring and a JSF web layer on top of it. Is it necessary to have the embedded-jboss in that case?

[asavitsky]

If you're using plain JPA (no EJB3) and you don't require JTA, then no, you don't need jboss-embedded at all. You'll need to

a) use Seam transaction manager

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

b) declare your datasource in Tomcat

c) reference the datasource in persistence.xml, and make sure to specify transaction-type="RESOURCE_LOCAL"

If you need any more info, just ask (but make sure to read the docs first, it's all explained in detail there)

Alex

[dapeng]

a) use Seam transaction manager

That is the point. I want to use spring instead of seam tx, because the same method will be invoked by non-jsf requests. Is that possible to tell Seam to start local tx managed by spring tx manager?

declare your datasource in Tomcat

Can I declare the datasource in my spring config, so that I have the same config for production and unit tests? If yes, how to reference such a POJO datasource from persistence.xml?

Thanks

[youngm]

In case someone stumbles upon this thread with the same question. You can find more information at this thread:

http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4074888#4074888