RU kidding? Have you not done any investigation at all on this subject?
This is very basic to servlet operation!
Get a copy of Jason Hunter's "Java Servlet Programming, 2d Ed." (Amazon.com)
and read Chapter 3. All will be revealed....
Cheers!
Mark
----- Original Message -----
From: "balwinder singh" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Tuesday, May 01, 2001 5:32 PM
Subject: Re: Session & Database connection
> Hi
> Could u please tell me what is "container" ..and when server execute
destroy
> method?
> Thanx
> Balwinder Singh
>
>
>
> Geeta Ramani <[EMAIL PROTECTED]> wrote:
> Oh, ok. I guess I wasn't in fact saying the same thing... I didn't realise
> that
> the container could go through the init(), service(), destroy() cycle many
> times. Thanks for the clarification: it's good to know this bit about
having
> to
> release in destroy() all resources acquire in init(). Thanks again!
> Geeta
>
> "Christopher K. St. John" wrote:
>
> > Geeta Ramani wrote:
> > >
> > > Well, ok, I guess you mean *explicitly* calling the init() in the code
as
> > > opposed to automatically/implicitly calling it when the servlet is
> > > initialized..
> > >
> >
> > I'm not sure if we're saying the same thing or not,
> > but to clarify what I was trying to say:
> >
> > A servlet container can put a servlet through the
> > init(), service(), destroy() lifecycle many times
> > during the lifetime of the container[1]
> >
> > In fact, if the container is being perverse (or
> > the load on the container is very high) it's
> > possible that for every single request to the
> > servlet, the servlet is init()'ed and destroy()'ed.
> >
> > Although that's pretty unlikely, you have to
> > program as if it could happen at least once, which
> > means that any resource you acquire in init(), you
> > have to release in destroy().
> >
> > > the best thing would be to create the pool in the
> > > init(), and then create and release connection within
> > > the doGet()/doPost.
> > >
> >
> > And release the pool in destroy() :-)
> >
> > [1] Spec 2.3PFD Section 2.3.4 "End of Service", but
> > I believe 2.2 says the same thing.
> > <URL:http://java.sun.com/products/servlet/download.html>
> > It might be a fun mini-project to modify one of
> > the open source containers to have a "perverse" mode
> > that actually does all the stuff the spec says is
> > legal...
> >
> > --
> > Christopher St. John [EMAIL PROTECTED]
> > DistribuTopia http://www.distributopia.com
> >
> >
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