Hi Todd,
Only one instance of the servlet will be created and it will service
multiple client requests. So if client 'A' changes the variable to true,
then Client 'B' will see that. Also note, that since it is a boolean value
you do not need to synchronize your variable because the assignment of the
boolean is atomic. If you
were using something like a hash map or other collection, you would need to
synchronize around access to that instance variable because multiple threads
of execution could be accessing it concurrently.
If you want the variable to be on a "per-user" basis you will need to store
that variable in the Session object for each user.
Tyler Van Gorder
[EMAIL PROTECTED]
> -----Original Message-----
> From: Todd Mytkowicz [mailto:[EMAIL PROTECTED]]
> Sent: Thursday, July 06, 2000 1:08 PM
> To: [EMAIL PROTECTED]
> Subject: Non static global variables
>
>
> Hello all,
>
> In my servlet, I create an instance variable as such...
>
> private boolean temp = false;
>
> ...
>
> An instance of this servlet is created the first time the
> servlet is called.
> My understanding is that this variable is only initialized
> that first time.
>
> Is this temp variable implicitly static? ie, if one user changes the
> variable, will other servlets see that change?
>
> In more general terms, I want this variable to act as a
> global variable with
> a seperate value to each request.
>
> If user A requests my servlet and changes the temp to true,
> will subsequent
> users see a value of true?
>
> Thanks for the help.
>
> Todd Mytkowicz:
> [EMAIL PROTECTED]
> ______________________________________________________________
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