Stateful Session Bean - @PreDestroy never called?
I made a strange observation concerning statful session beans running in Wildfly 10.
This is my bean example:
import java.rmi.RemoteException;
import javax.annotation.PostConstruct;
import javax.annotation.PreDestroy;
import javax.ejb.EJBException;
import javax.ejb.LocalBean;
import javax.ejb.PostActivate;
import javax.ejb.PrePassivate;
import javax.ejb.SessionSynchronization;
import javax.ejb.Stateful;
@Stateful
@LocalBean
public class ArchiveServiceStateful implements SessionSynchronization {
public String doArchive(String file,byte[] content) {
System.out.println("doArchive...");
return null;
}
@Override
public void afterBegin() throws EJBException, RemoteException {
System.out.println("after begin....");
}
@Override
public void afterCompletion(boolean arg0) throws EJBException, RemoteException {
System.out.println("after completion... status="+arg0);
}
@Override
public void beforeCompletion() throws EJBException, RemoteException {
System.out.println("before complete...");
}
@PostConstruct
public void onPostConstruct() {
System.out.println("@PostConstruct...");
}
@PreDestroy
public void onPreDestroy() {
System.out.println("@PreDestroy...");
}
@PostActivate
public void onPostActivate() {
System.out.println("@PostActivate...");
}
@PrePassivate
public void onPrePassivate() {
System.out.println("@PrePassivate...");
}
}
I call the 'doArchive' method from a statles session bean and got the following log messages:
imixs-archive-office_1 | 19:26:43,728 INFO [stdout] (default task-48) @PostConstruct... imixs-archive-office_1 | 19:26:43,745 INFO [stdout] (default task-48) @PostConstruct... imixs-archive-office_1 | 19:26:43,751 INFO [stdout] (default task-48) @PostConstruct... imixs-archive-office_1 | 19:26:43,758 INFO [stdout] (default task-48) @PostConstruct... imixs-archive-office_1 | 19:26:43,766 INFO [stdout] (default task-48) @PostConstruct... imixs-archive-office_1 | 19:26:43,946 INFO [stdout] (default task-48) after begin.... imixs-archive-office_1 | 19:26:43,946 INFO [stdout] (default task-48) doArchive... imixs-archive-office_1 | 19:26:43,952 INFO [stdout] (default task-48) before complete... imixs-archive-office_1 | 19:26:43,981 INFO [stdout] (default task-48) after completion... status=true
So the method onPostConstruct() is called 5 times and all other call back methods are not called.
It looks like each call of my bean method creates 5 new instances of the stateful session bean but never a PreDestroy ore a PrePassivate.
Should I worry about that?
===
Ralph
