[jboss-user] [JBoss Seam] - Can I manually commit a Transaction?
do-not-reply at jboss.com
Wed Sep 26 17:55:49 EDT 2007
In my Seam app, I upload a file, create a record for it in the DB, persist() and flush() it, then move the file to a folder for processing.
The problem is that sometimes my file processing application gets the file before the record is visible in the DB.
There isn't anything else happening in the method after moving the file, but apparently, Seam isn't quite speedy enough on committing the Transaction.
There is no @PostCommit event, and @PostPersist is still too early. What I'd like to do is just commit the Transaction, then move the file. However, entityManager.getTransaction() throws "java.lang.IllegalStateException: JTA EntityManager cannot access a transactions".
How do I move my files after the Transaction is committed? All I can really think of is manually committing the Transaction, but that doesn't seem to be allowed. Is there a way to do it? I don't want ALL my Transactions to require manual commit, just this one instance. Do I need to create a second core:managed-persistence-context in components.xml that points to a different persistence-unit in persistence.xml?
Or is there some other way of doing this? I've seen the @Asynchronous annotation. If I call a method annotated with this from within a Transaction, am I guaranteed that it won't be triggered until after the Transaction has committed?
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