August 29, 2008 01:56pm pdt

1. Nellios 29,225
2. girionis 13,000
3. aiklamha 8,000
4. melchkish... 6,375
5. mohammedf 4,860
6. brunoguim... 4,250
7. rrz@87... 3,800
8. TomasHelgi 3,750
9. HonorGod 3,500
10. CEHJ 2,880
11. nag9s2... 2,864
12. ramazany... 2,800
13. objects 2,672
14. MicheleM... 2,664
15. dejanpazin 2,155
16. ECollin 2,000
16. qasitouch 2,000
16. vin_babu 2,000
16. TrekkyLea... 2,000
16. rhei 2,000
16. krakatoa 2,000
16. TimYates 2,000
16. Hassan_... 2,000
16. karanw 2,000
16. DaveyEss 2,000
16. mhunts 2,000
16. filosof 2,000

1. girionis 61,041
2. mayankea... 58,136
3. objects 54,568
4. CEHJ 40,531
5. TimYates 40,445
6. mbvvsatish 38,129
7. aozarov 31,970
8. Nellios 29,889
9. petmagdy 29,838
10. suprapto45 19,444
11. Kelvin_King 18,979
12. jim_cakalic 14,352
13. bloodredsun 13,817
14. Javatm 11,925
15. orangehe... 11,094
16. Ajay-Singh 10,016
17. ECollin 9,025
18. reach2pi... 8,656
19. dejanpazin 8,500
20. sumit_only 8,325
21. zzynx 8,266
22. aiklamha 8,000
23. valipotor 7,432
24. melchkish... 6,375
25. mukundha... 6,142

05.20.2008 at 04:40AM PDT, ID: 23416696

	[x] Attachment Details

How to manage method-scoped transactions in EJB 3.0

Asked by summerian in Enterprise Java Beans (EJB), J2EE

Tags: Java, EJB, JBoss

Hi

I'm using stateless EJB 3 with JBoss 4.2.2GA as app server.

I have problem with isolating transactions on desired methods. I have two EJB methods, one is calling the other in a loop. The first method (outer) call lasts for a long time, which cause transaction to timeout and cause transaction error. The second (inner) method requires transaction.

Now, I know that I can extends transaction time to longer period, but I want to try another way. I want the outer method to not have transaction, but would like the inner method to create transaction if it does not exist. How do I do that? Is that possible?

I tried TransactionAttributeType.SUPPORTS or TransactionAttributeType.NEVER on the outer method, but the transaction would not be created for the inner method either.

Example explanation is below
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             @Stateless(name="MyEJB")
@LocalBinding(jndiBinding="ejb/MyEJB/local")
@RemoteBinding(jndiBinding="ejb/MyEJB/remote")
@TransactionAttribute(TransactionAttributeType.REQUIRED)
public class MyEJB {
 
   //I don't want transaction here
   //these annotations turn off transaction on inner method also
   //@TransactionAttribute(TransactionAttributeType.SUPPORTS)
   //@TransactionAttribute(TransactionAttributeType.NEVER)
   public void methodOuter(){
      MyEJB2 myEjb2;//get EJB2
 
      for(/*some conditions*/){
          //...
          myEjb2.methodInner();
      }
   }
}
 
@Stateless(name="MyEJB2")
@LocalBinding(jndiBinding="ejb/MyEJB2/local")
@RemoteBinding(jndiBinding="ejb/MyEJB2/remote")
@TransactionAttribute(TransactionAttributeType.REQUIRED)
public class MyEJB2 {
 
   //I need transaction here
   public void methodInner(){
      
   }
}

           
         

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How to manage method-scoped transactions in EJB 3.0

Asked by summerian in Enterprise Java Beans (EJB), J2EE

Tags: Java, EJB, JBoss

About this solution