Hi Sanjay,
U can make a jni call to the c++ funtion in one
servlet and keep this servlet as a reference servlet
.when u need to acess this c++ funtion again in your
other servlet which are part of the same
web-application u jst use RequestDispatcher object and
give a call to the reference servlet.Meaning
use
getServletContext().getRequestDispatcher().include("referenceServletName").This
would suffice ur need I believe.
Rishi
--- sanjay <[EMAIL PROTECTED]> wrote:
> Hi Kaustubh,
>
> Thank you very much for the info. But there
> are some issues.
> Imagine I have declared a variable in first servlet
> and instanciated in
> the init method.
> but when I try to use that variable in the second
> servlet, it would give
> me a compile time error saying that variable is
> undefined.
>
> Secondly I need the request and response object for
> the JNI function
> (which i intend to call in init() method) and which
> is not available in
> the init() method.
> If you need any more explanation on this pl mail me.
>
> Kindly help
> Regards,
> San.
>
> Kaustubh wrote:
>
> > Dear Sanjay,
> > Once u declare an Instance variable in a servlet,
> it is shared among all the
> > servlet threads in a multi-threaded model.
> > So declare it as an instance variable and
> initialize it in the init()
> > method.
> > See if it helps.
> > Actually I had tried it using a simple int
> variable and it gets shared among
> > all the servlet threads without making it static.
> > Pls. let me know if this is not the case.
> > Kau.
> >
> > ----- Original Message -----
> > From: "sanjay" <[EMAIL PROTECTED]>
> > To: <[EMAIL PROTECTED]>
> > Sent: Friday, January 11, 2002 11:17 AM
> > Subject: Servlet performance
> >
> > > Hi all,
> > > I am using servlets with JNI .
> > > I am currently using a JNI function which is
> being called by most of my
> > > servlets.This call is made from servlet to
> fetch data from C++
> > > domain,which is collected into many arrays which
> are declared as public
> > > member variables of my servlet. Is there any
> method to avoid calling
> > > this JNI function in every other servlet and
> instead have a single call
> > > made only in one servlet, but without using
> static variables to store
> > > the values fetched ?
> > >
> > >
> > > This is basically to avoid increase of memory
> utilised .What I observed
> > > is that every access to a servlet increases
> memory by a certain amount
> > > (100KB), which eventually builds up to 50MB and
> later gets garbage
> > > collected ,down to 16 MB.I am using Tomcat
> version 3.2.1. , operating on
> > > windows NT.
> > >
> > > Kindly Help!!!!
> > > Regards
> > > San.
> > >
> > >
> >
>
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