Hi All,
  My application is for multiple users.
 There are 5 different coppies of application with 5 different databases. I am trying to create one unique ID accross all application and databases.
  I am reading the values from from all 5 databases and creating ID.
So its is working for single application.
But when 2 or more user try to add entry with unique ID at the same time,then prob occures.
So how to make servlet single threaded?
 Actually my code is scattered among 2 servlet and 2 more java files.
So I can't even use lock and unlock tables. becoz getting and closing the connection is at one place and the need is at some other place.

Can somebody tell what to do?


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