Actually having another servlet as suggested wouldn't
help in this case(there would be problems of
synchronization since the servlet would need to have
the static variables in order to load the DLL's and
some other stuff.)
One solution would be to use a seperate class similar
to a bean,which would call the dll function and return
an object type to the servlet. This object could be
used in your servlets.This would solve the problem of
having too many static variables in the servlet.
thanks,
Madhava
--- rishi singh <[EMAIL PROTECTED]> wrote:
> 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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