when we talk about the Singleton pattern on which the servlets are
instantaiated
how come multiple instances of the jvm would be instantiated on a single o/s
with a single jvm . i guess i am not wrong f i say we can't have multiple
instances of the jvm on a single jvm m/c may be it is a clustered
environment.

Rg
Sandeep Katiyar.

----- Original Message -----
From: "Justin Jose" <justinkj@(protected)>
To: <J2EEPATTERNS-INTEREST@(protected)>
Sent: Wednesday, December 01, 2004 10:37 PM
Subject: Re: Singleton in clustered environment


> Hi Varun,
> This link may help U.
>
>
http://www.sysed.com/DnLoads/QualityContents/WebLogicServerAdmin/04_WebLogic
AdminCH01.pdf
>
> Justin
>
>
> On Thu, 2 Dec 2004 11:37:38 +0530, Mall, Vishnu (Cognizant)
> <mvishnu@(protected):
> >
> > Hi Varun,
> >
> > The Concept of Singleton is "one and only one instance of a class at any
> > given point of time in a single JVM". The moment you mention a clustered
> > environment, you would end up having multiple JVMs and hence each JVM
would
> > have an instance of this Singleton class. Hope this helps. Do let me
know
> > your exact requirement in detail.
> >
> >
> > Thanks and Regards,
> > Vishnu Mall
> > Cognizant Technology Solutions,
> > Technocomplex, Kolkata
> > Ph : 2357 3211/12/13 Extn : 3253
> > email : MVishnu@(protected)
> >
> >
> >
> > -----Original Message-----
> > From: Varun Rally, Noida [mailto:varunr@(protected)]
> > Sent: Thursday, December 02, 2004 11:03 AM
> > To: J2EEPATTERNS-INTEREST@(protected)
> > Subject: Singleton in clustered environment
> >
> >
> >
> >
> > Hi all,
> >
> >
> >
> > I have to implement singleton in clustered environment.
> >
> > Can somebody, help with some online resource/link or pattern for doing
the
> > same.
> >
> >
> >
> > Regards,
> >
> > Varun Rally
> >
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