How to make a servlet as observer?????

[Dhanush Dharsh]

I have a class that does some network polling. This class implements observable. It updates a datastructure after every poll and notify all its observers. These observers are used to periodically refresh my GUI client. This works fine in case of a simple java application.
When I tried to port this to servlets, I am not able get the same functionality done. Is it because servlets cant be an observer ?
Someone please throw some light on this.
Regards,
Dhanush

[Frank Carver]

"Dhanush",
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We require names to have at least two words, separated by a space, and strongly recommend that you use your full real name. Please choose a new name which meets the requirements.
Thanks.