Pankaj -
There are several vendors which implement JSP, Servlet and EJB
today. J2EE rolls these standards up into a nice package but
if you're mainly interested in JSP and EJB, there are Java
application servers which support them now. GemStone/J is an
example. Sun has a list of EJB vendors, some of which also
implement JSP.
http://java.sun.com/products/ejb/tools1.html
The user session (HttpSession) is maintained by the servlet
engine. There is no need to store it in an EJB.
IIS does not support JSP but some vendors have adapters
so that you can use IIS to access JSPs and servlets.
For instance, GemStone/J supports this.
The answer to your performance-related questions depend
greatly on the application server so there's no good general
answer.
- Chris
Chris Hansen
GemStone Systems, Inc.
http://www.gemstone.com
> -----Original Message-----
> From: Pankaj Malviya [SMTP:[EMAIL PROTECTED]]
> Sent: Monday, August 09, 1999 1:59 PM
> To: [EMAIL PROTECTED]
> Subject: Re: JSP with EJB
>
> Hi,
>
> We are in the process of building a web site that will
> support more than 10,000 concurrent users. I want to
> use Java for any server side development. This
> prompted me to look at JSP and EJB model. I am not
> uptodate on J2EE stuff.
>
> >
> > What will probably fit the bill for this is the
> > Reference Implementation of the
> > Java2 Enterprise Edition (J2EE) -- anounced at
> > JavaOne -- which will include
> > implementations of pretty much the entire suite of
> > functionality (servlet, JSP,
> > EJB, and so on). Unfortunately, this won't be
> > available until later --
> > probably Q4 1999, but don't hold Sun to my
> > guesswork!
> >
>
>
> Does this mean that today JSP - EJB combination is not
> supported by any vendor.
>
> Also whether IIS supports JSP.
>
> > In the mean time, you can concentrate on
> > understanding the basic capabilities
> > of EJB servers, and then the implications of storing
> > references to your session
> > beans and entity beans in your JSP sessions -- given
> > the ability of both the
> > EJB platform and the servlet/JSP platform to be
> > implemented in a scalable
> > fashion, and/or run on different servers, the future
> > looks pretty interesting.
>
> Where can I read about it ?
>
> Whether EJB Servers will be able to keep a pool of
> JDBC connections ?
>
> Who will maintain the user session ? EJB or JSP. Can I
> maintain user sessions inside a hash table in EJB ?
>
> What is the cost of JSP making a call to bean and then
> bean making a call to EJB server.
>
> Based on the EJB tutorial, some context needs to be
> established before a client can make a call to EJB ?
> What is the cost of this context.
>
> Thanks in advance
>
> Pankaj
>
>
> -------------------------------------------------------
> Pankaj Malviya wrote:
>
> > Hi everybody:
> >
> > In Sun Website
> > http://java.sun.com/products/jsp/whitepaper.html we
> > can
> > read about tree diferents application Models for JSP
> > Pages.
> >
> > 1.- A Simple Application
> > 2.- A Flexible Application with Java Servlets
> > 3.- Scalable Processing with Enterprise JavaBeans
> > Technology
> >
> > Can someone point me to reference implementation of
> > Model 3.
> >
>
> What will probably fit the bill for this is the
> Reference
> Implementation of the
> Java2 Enterprise Edition (J2EE) -- anounced at JavaOne
> -- which will
> include
> implementations of pretty much the entire suite of
> functionality
> (servlet, JSP,
> EJB, and so on). Unfortunately, this won't be
> available until later --
> probably Q4 1999, but don't hold Sun to my guesswork!
>
> In the mean time, you can concentrate on understanding
> the basic
> capabilities
> of EJB servers, and then the implications of storing
> references to your
> session
> beans and entity beans in your JSP sessions -- given
> the ability of
> both the
> EJB platform and the servlet/JSP platform to be
> implemented in a
> scalable
> fashion, and/or run on different servers, the future
> looks pretty
> interesting.
>
> You can get a feel for what the entire scope of J2EE
> will be by reading
> the
> white papers, and the J2EE spec, at:
>
> http://java.sun.com/j2ee
>
>
> >
> > Thanks
> >
> > Pankaj
> >
>
> _____________________________________________________________
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> Bid and sell for free at http://auctions.yahoo.com
>
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