hi,
----- Original Message -----
From: alain <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Wednesday, January 30, 2002 4:59 AM
Subject: what is best practice...
> hi all...
> let's say from a servlet i want to call a class and method in that class
> could i have an advice about what is the best way to do it
>
>
> ***
> instanciate the class in the servlet init
>
> MyClass mc = null;
>
> public void init() throws ServletException {
> mc = new MyClass();
> }
>
> processRequest(HttpServletRequest request, HttpServletResponse response) {
> ...
> mc.doThat(whatever);
> ...
> }
here take care of multi-threaded execution of the method doThat().
>
> ***
> load it dynamically each time the servlet is called
>
> processRequest(HttpServletRequest request, HttpServletResponse response) {
> ...
> Class c = Class.forName(MyClassName);
> mc = (MyClass)c.newInstance();
> mc.doThat(...);
> }
> ***
>
why don't you simply use
MyClass mc = new MyClass();
mc.doThat();
> or use a utility Bean, put it in the servlet context
> and call the func when i need it
>
> ***
again beware of multi-threaded execution.
> does this all make any difference
> thanks
>
> alain
>
IMO it will depend on the objects you are creating. If it is created
after parsing some XML doc, then doing it each time will be slow. In that
case I would create it in init and make sure that multi-threaded access
doesn't create any problems. If it is a light object, then i would prefer to
create it in doGet() only.
-sourabh
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