JPA vs Hibernate, multiple data source

Hi,

I have started a new project and I chose Struts2 +Spring + JPA Hibernate.
within a week's time I came up with the requirement for creating a data pump from one data source to another. I have had a tough time in getting the code to work. As long as I was Working with One Data Source it was easy. but with two Iwas lost.

I had created 2 persistence units and defined the connection properties in two persistence .xml files . I created two emf's and two transaction managers. I used One with The Tx annotation driven transaction manager tag and preferred to apply aop to the other set of classes which was specific in point.
But I ended up with a head wringing runtime exception that entitymanagerfactory not found..


My question is , Since I have not gone into deeper waters as yet. Should I go Bact to Spring Dao SUpport or hibernate transactions or should I continue with JPA implementation


Please help :confused: