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Can java.util.Timer & TimerTask be used within ejb container?

Can java.util.Timer & TimerTask be used within ejb container?

2003-11-17       - By Sean Brydon

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Reply:     1     2     3     4  

Hi,
the J2SE timer is not really an enterprise timer service which is part
of the motivation for the new J2EE1.4 Timer service. There is no
standard tinmer in pre J2EE1.4 so you will have to something
non-portable. You could try using J2SE timer but make sure you test it
to see if it has the granularity of time slices and the functionality
you need first.
J2EE1.4 is available as a beta download, with the final release coming
soon. If interested you could download it at
http://java.sun.com/j2ee/1.4/download-beta2.html

hope that helps,
Sean
peng wang wrote:

>Hi All,
>
>As J2ee1.4 having not been released and its
>TimerService cann't be used at this moment, I have
>thought use java.util.Timer Source code of java.util.Timer & TimerTask  for our
>timer related tasks.
>
>I wonder if java.util.Timer Source code of java.util.Timer & TimerTask can be used
>WITHIN ejb container. Also I note that for each timer
>task there should be a Timer instance, and hence one
>thread is needed to check whether the time is due for
>the task. So does using Timer have a negative effect
>on overall performance?
>
>Thanks,
>
>wp
>
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