Spring @Transaction在动作方法完成时回滚

Question

I have a method defined for an action button in JSF in the backing bean. I am using Hibernate as the ORM. I am able to save the fresh data. But when I try to update the same data, a transaction roll back exception is thrown

javax.faces.FacesException: #{itemModificationBean.saveData('0','IM')}: org.springframework.transaction.UnexpectedRollbackException: Transaction rolled back because it has been marked as rollback-only
   at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:118)
   at javax.faces.component.UICommand.broadcast(UICommand.java:315)
   at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:790)
   at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:1282)
   at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:81)
   at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
   at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:198)
   at javax.faces.webapp.FacesServlet.service(FacesServlet.java:646)
   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
   at org.primefaces.webapp.filter.FileUploadFilter.doFilter(FileUploadFilter.java:98)
   at 

I have no interface implemented for the method and it is being called and defined in the backing bean itself.

Is there any way to find out what is going wrong ?....

Any help would be appreciated

Let me know if any more details are required to elaborate more on the issue

Backing Bean

ItemBackingBean action method

@Transactional(readOnly=false, propagation=Propagation.REQUIRED)
public String saveData(String action, String app) throws WFException {

    setSaveOrSubmitStatus(action);
    setCurrentApp(app);
    //DB operations
    .
    .
    .
    .
    .
    return requestNo
}

The component

<p:commandButton value="#{msg.save}" type="submit" id="modifySav"
                        process="@form @this"
                        action="#{itemModificationBean.saveData('0','IM')}"
                        rendered="#{itemAttributeBean.getRenderedValue('modifySav')}"
                        update="@([id$=form]) @([id$=collectionTab])  @([id$=itemRequestDetailsGrid]) @([id$=saveDialogItemMod])"
                        style="float:right;" />

Answer 1

From your stacktrace it is said that

transaction has been marked as roll-back only

I would suggest these steps:

1. Determine, where the transaction is started. As you may have different transactionPropagation strategies, you need to find out the first place where it is started.
2. Examine all the methods that uses same transaction context (all methods where transaction was propogated during execution) and try to get exceptions which causes transaction to roll-back: check transaction rolling back policies of your container. Spring for example rolling back when runtime exceptions occured (check docs ).
3. Identify exception and reasons for them and then act appropriatly.

From what I see from the qestion details it could be methods that are called from your backing bean saveData method which are in the same transactional context. So update itself may work as it should be but previous method calls already marked current transaction as roll-back only. Check theirs transaction propagation strategies.

I assume that some of the methods before database operation rolled back transaction by some exception or explicitly marked transaction as rolled-back only. Those methods don't throw exception and that's why the program flow continue to database operation method call but it can't be done in the same transactional context.