Thanks Gavin for the reply.
I finally figured something out. Working with new technology is always fun,
even if it is a bit frustrating. I'm very new to using EJB3 - in fact I
switched to using it (from tomcat/hibernate) when seam was still in it's first
releases (mainly cvs at that time) because I saw the power of the framework).
But now I need to go back and learn some of the things the framework manages
for me.
I ended up putting
@TransactionAttribute(TransactionAttributeType.REQUIRES_NEW)
on the class and method of the called method. Then in the method I create a
new EntityManager. It's a little heavy handed but does the trick. I thought I
could reuse the em for each transaction call; but couldn't figure it out. It
works, just wondering if there was a better way. I tried a couple of things
with UserTransaction but just didn't get it to work. Probably my fault.
Thanks again,
Chris....
| @Name(value="importSale")
| @Stateful
| @TransactionAttribute(TransactionAttributeType.REQUIRES_NEW)
| public class ImportSale implements IImport {
|
| private EntityManagerFactory emf = null;
| private EntityManager em;
|
| private EntityManager txEntityManager(){
| return getEntityManagerFactory().createEntityManager();
| }
|
| private EntityManagerFactory getEntityManagerFactory(){
| if(emf == null) {
| try {
| return (EntityManagerFactory)
Naming.getInitialContext().lookup("java:/customEntityManagerFactory");
| } catch(NamingException ne) {
| throw new IllegalArgumentException("EntityManagerFactory not
found", ne);
| }
| } else {
| return emf;
| }
| }
|
| @TransactionAttribute(TransactionAttributeType.REQUIRES_NEW)
| public void processXML(ParseFile parseFile, State state, Element record)
{
| internalProcess(record);
| }
|
| private void internalProcess(Element record){
| try {
| em = txEntityManager();
| Contexts.getMethodContext().set("em", em); //added since DAO
method access the em via
|
//Contexts.lookupInAllStates(or
| // whatever the
method is called)
| if(processXML(record)){
| } else {
| Transactions.setTransactionRollbackOnly();
| }
| } catch(Exception ex){
| try {
| Transactions.setTransactionRollbackOnly();
| } catch(Exception e) {
| throw new RuntimeException("Could not rollback erred record",
e);
| }
| }
| }
|
| </snip rest>
| }
|
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