How making stateless session beans transaction-aware?

Question

How do I get informed in a stateless session bean that the transaction need to be rolled back? For example, I have a stateless EJB which is updating a LuceneIndex with some business data. The method is called in a transaction with several EJB calls. When some of the later EJBs rolls back the transaction, than how can I be informed about this issue so that I am able to roll back my already written LuceneIndex entry?

Steve C Steve C · Accepted Answer · 2017-07-20T13:09:18

You can do this by injecting a reference to the current EJBContext and then querying it:

 @Stateless
 public class LuceneDriver {

     @Resource
     private EJBContext ejbContext;

     public void performLuceneStuff(...) {
         try {
             ...
             // update lucene data
             ...
             // update some business data
             ...
         } catch (BusinessException e) {
             if (ejbContext.getRollbackOnly()) {
                 // rollback lucene changes
             }
         }
     }

     ...

}

How making stateless session beans transaction-aware?

2 Answers