timer « ejb « Java Enterprise Q&A

  1. Java Enterprise Q&A
  2. ejb
  3. timer




1. Are EJB Timers supposed to be persistent/reliable?    stackoverflow.com

E.g. if I set a timer to expire every day at midnight, what will happen if one "misfire" (does not trigger the callback because the server is down, for instance) ? ...

2. TimerService EJB 3    stackoverflow.com

Related to TimerService, can I define two Timer instances and bind each timer to a specific (different) method annotated @Timeout in the same EJB? Thanks, Rod

3. How to start an EJB Timer on deployment?    stackoverflow.com

I need to create an interval Timer that is set to run once a week automatically. I don't want it to start based on user input, but I want it to ...

4. How to get notification about EJB deployment (to set up a timer)?    stackoverflow.com

I'm deploying an EJB which should set a timer and be triggered by it every 24 hours. But where should I set the timer? @PostConstruct does not help -- this is ...

5. How to stop endless EJB 3 timer?    stackoverflow.com

I am new to EJB 3 . I use the following code to start endless EJB 3 timer then deploying it on JBOSS 4.2.3 

@Stateless
public class SimpleBean  implements SimpleBeanRemote,TimerService  {

@Resource
TimerService ...

6. Execute periodic tasks using a timer with a different interval as intended    stackoverflow.com

I am forced to execute a periodic task using a timer that is invoked at a different interval as the period I'd like to execute this task. Note that the ...

7. ejb timer service vs cron    stackoverflow.com

Ejb timer service can start some process in desired time intervals.
Also we can do the same thing with cron (min 1 minute) interval. But doing it with cron we have ...

8. JBoss EJB2 Timers Service - multiple servers, single TIMERS table?    stackoverflow.com

I can't find this in the JBoss documentation anywhere, so am asking here. Can multiple, non-clustered JBoss instances access and share the same TIMERS table (as used by EJB2 Timers Service) without ...

9. Are EJB3 Timers inherit to the beans they are created by?    stackoverflow.com

Timers are created in EJB3 using the TimerService.createTimer(), and are then run via whatever callback method that's annotated by the @Timeout annotation, i.e: 

@Resource
private TimerService timerService;

public void createHampster() {
    ...




10. EJB 3 Timer problem    stackoverflow.com

I am using JBoss 4.2.3 with JDK 1.5. I have created a stateless EJB whose purpose is to delete a file after a specified period of time (in milliseconds). The EJB code ...

11. Why would EJB timer run on one server, but not another?    stackoverflow.com

Does anyone know why an EJB3 timer would fire when I run my app locally, but when I deploy it to my production web server it doesn't fire? I'm running ...

12. Ejb 2.1 Timer IOException    stackoverflow.com

I have a weird problem, I am using EJB 2.1 timer object to fire a timer at a specific time in a day and do some housekeeping stuff like deleting files. ...

13. How to get all EJB timers?    stackoverflow.com

In EJB 3.1 I can get all timers for a specific bean using TimerService#getTimers() on the TimerService instance obtained for that bean. What I actually need however is a system-wide version of ...

14. EJB Timer Service error    stackoverflow.com

I'm trying to use the EJB timer service, I have a class named TimerBean which carries the methods to schedule a timer and handle the timeout, this implements TimerBeanRemote an interface ...

15. questions on ejb3.0 timer service    stackoverflow.com

I have 4 methods in my Timersession bean,lets say a(), b(), c() and d().

  • a() should be executed every 6 hour
  • b() should be execute every 3 hour
  • c() should be execute ...

16. EJB Timer Service: order of timeouts    stackoverflow.com

I have two timeouts defined:
timeout A - every 30 seconds
timeout B - every 2 minutes

// scheduled for timeout A (every 30sec)
@Stateless
public class MyBeanA {
   (...)

   @Timeout
 ...




17. Disable EJB Timer Services in JBOSS    stackoverflow.com

I am using JBOSS5.0GA as application server. For our application we are using EJB3.0 and JPA2.0 as persistence layer for communicating with database. I want to disable Timer Services of EJB ...

18. EJB3.1 TimerService @Timeout current principal    stackoverflow.com

I have a question regarding authentication and the TimerService @Timeout annotation : In our application users can schedule tasks to be performed at a given interval, They select from a list ...

19. EJB Timer usage recommendations    stackoverflow.com

I want to schedule a job, which read some entities, call some ws and write/update some entities. This job should be processed after the moon, for example at 01am. I have ...

20. Timer service EJB 3.0 vs EJB 3.1    stackoverflow.com

In my current project I need to create one periodic re-occurring Batch job. Previously I have used custom framework to implement this. Now looking into EJB Timer Service API. What is the best ...

21. How does ejb 3.1 timer Service calculates the timeout?    stackoverflow.com

I want to know how the Ejb timer services calculates the timeout? Does it takes the system time and depending on it calculates the timeout or does it internally have mechanism ...

22. Is EJB Timer Service Thread safe?    stackoverflow.com

Is EJB Timer Service Thread Safe? When multithreads call to create timerservice, and then use their own timerservice to create timer. How the jboss container queue these events and kick off ...

23. accuracy of EJB timer    forums.netbeans.org

senderj Joined: 10 Oct 2008 Posts: 22 Posted: Mon Apr 06, 2009 10:09 am Post subject: accuracy of EJB timer I created a timer "def" with interval 1000 ...

24. javax.ejb.Timer    forums.netbeans.org

Hi all, I need a schedule task to be carried out at a excatly 10seconds from a particular action. Can I safely use javax.ejb.Timer and sleep well.Or should I use the ...

25. Re: javax.ejb.Timer    forums.netbeans.org

Hi all, I need a schedule task to be carried out at a excatly 10seconds from a particular action. Can I safely use javax.ejb.Timer and sleep well.Or should I use the ...

26. Multiple EJB timers upon startup    forums.netbeans.org

I am having a problem with my EJB timer. It all runs find until I have to restart. The timer I am using is a simple timer to kick off every X seconds and do a task then reschedule itself. Upon restart though it will run a new one created for the application and appears to restart the one that was ...

27. Concurrent timers are not getting invoked for same timer info (Serializable object co    java-forums.org

Problem Scope: Concurrent timers are not getting invoked for same timer info (Serializable object containing the details of timer). Details : I am implementing EJB timer 2.1 and when ejbTimeOut execution of one timer exceeds the interval time, next timeout doesnt happens till the execution of first ejbTimeOut completes . Ideally the timers should behave in the manner that on every ...

28. EJB Timer Service    java-forums.org

Hi Let say there are multiple servlet request from the user and each of the request will result int calling the same EJB method available at the back-end project (back-end and front-end project are 2 separated projects), will the back-end spawn additional threads to handle the request? The reason of being asking this question is that I got a strange occurrence ...