Actually it is probably a good tip to
write your servlet code as if all the
methods were static.
This prevents you from using any
instance variables.
I have yet to see a safe use of instance variables in a servlet.
T.
Chris Pratt <[EMAIL PROTECTED]> wrote:
__________
>As far as I know, there is nothing that requires a server to only use one
>instance of a servlet. In fact any servlet that implements the
>SingleThreadModel will most likely be run by separate instances. I'd be
>careful trying "tricky" things if you want to maintain the portability of
>your code.
> (*Chris*)
>
>----- Original Message -----
>From: hhito <[EMAIL PROTECTED]>
>To: <[EMAIL PROTECTED]>
>Sent: Saturday, August 14, 1999 9:52 AM
>Subject: Static and non-static methods in servlets
>
>
>> It seems to me that it doesn't matter much if a method of a servlet is
>> static or non-static. The servlet engine will use the same instance of
>> the class to handle all requests anyway. Am I wrong?
>>
>> I know there are some subtle situations where you might have more than
>> one instance running because of dymaic reloading. And of course static
>> methods can't use non-static data. But since I don't keep any
>> non-static data in my servlets these are not problems. I often use
>> static methods like this (simplified code):
>>
>> public class MyServlet {
>>
>> public void doGet(req, res) {
>> result = performService(req, res);
>> out.println(result);
>> }
>>
>> public static performService(req, res) {
>> // whatever
>> }
>> }
>>
>> This gives other servlets access to the same services simply by calling
>> MyServlet.performService(). This saves me from messing with
>> getServlet(). Are there any syncronization issues invloved here or any
>> other problems I'm not aware of?
>>
>>
>> Thomas Oldervoll
>> System developer, University of Bergen
>>
URL http://www.westhawk.co.uk/
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