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From "Luba Powell" <luba...@bellatlantic.net>
Subject Re: How can I make tomcat to instantiate a class
Date Thu, 14 Jun 2001 19:49:33 GMT
This is what I suggest you do:

    Create Gateway class (login class) that metes out Session
    objects to callers via getMySession() method.
    Inside this method I would deserialize the bean object from the file and
added it as     an attribute inside the session.

    It is a common technique for passing Connection and Thread
    Pool objects within the session.

    Or simple change scope to session:
    <jsp:useBean id="counter" scope="page" class="javabean.Counter" />

    But I realize that programming with tags is very limited.

Hope this helps.
R/Luba

----- Original Message -----
From: "Debashis Ghosh" <debashis@ibusinesshub.com>
To: <tomcat-user@jakarta.apache.org>
Sent: Thursday, June 14, 2001 2:29 PM
Subject: Re: How can I make tomcat to instantiate a class


> Hi Luba,
> Thanks for this . But actually my problem was to instantiate a class when
> tomcat boots up...so that i can use that object across sessions.Can u
suggest
> something towarsd this.
> Thanks
> debashis
> On Thursday 14 June 2001 08:18 am, you wrote:
> > JSP will do it for you.  Example:
> >
> > <html>
> > <body>
> >
> > <%@ page language="java" %>
> > <%@ page import="javabean.Counter" %>
> >
> > <!-- page, request, session, application  -->
> >
> > <jsp:useBean id="counter" scope="page" class="javabean.Counter" />
> >
> > <%
> >  out.println("Count from scriplet = " + counter.getCount());
> > %>
> >
> > <br>
> >
> > Count from jsp:getProperty=
> >  <jsp:getProperty name="counter" property="count" />
> >
> > </body>
> > </html>
> >
> >
> > ----- Original Message -----
> > From: "Debashis Ghosh" <debashis@ibusinesshub.com>
> > To: <tomcat-user@jakarta.apache.org>
> > Sent: Wednesday, June 13, 2001 9:57 PM
> > Subject: How can I make tomcat to instantiate a class
> >
> > > Hi,
> > > Can anyone suggest How can I make tomcat to instantiate a class so
that i
> >
> > can
> >
> > > access it from my
> > > jsp or servlet as an application level variable.Basically i want to
> > > instatiate one connection pool class so
> > > that i can access it from my servlet to get an connection object out
of
> >
> > it.
> >
> > > On Wednesday 13 June 2001 06:47 pm, you wrote:
> > > > Below is good advice. If the login page does not
> > > > come up (btw, what happens does it just take you
> > > > direct to the protected resource?) the first place I would
> > > > look is the tomcat config files. So basically I would
> > > > double-check server.xml and the web-xml for your app.
> > > > If you are sure they are correct and you still have a problem
> > > > you might want to try posting the relevant sections to the list.
> > > >
> > > > If you do get JDBCRealm working with tomcat standalone then
> > > > to integrate with apache you need to add
> > > >
> > > > JkMount /examples/jsp/security/login/j_security_check ajp13
> > > > (or ajp12 if using mod_jserv) to httpd.conf to tell apache
> > > > to delegate the handling of this bit of magic to tomcat.
> > > >
> > > > andrew
> > > >
> > > > On Wed, 13 Jun 2001, you wrote:
> > > > > > Mark, I appreciate your help.   I have tried
> > > > > > to adapt the examples and I believe I have everything
> > > > > > in place.  However, apache just wont bring the login
> > > > > > form when I try to access a protected resource.
> > > > > > Would you have any idea where to look at for this problem?
> > > > >
> > > > > You might want to check and see if you can get a
> > > > > JDBCRealm to work with tomcat standalone(i.e. accessing
> > > > > you site as http://localhost:8080/... directly).
> > > > > If this doesn't work get this working first and
> > > > > that's a good place to start from.  Once you have
> > > > > JDBCRealm working correctly then you can deal with
> > > > > making sure it works when passed through apache.
> > > > >
> > > > >
> > > > > ---
> > > > > Michael Wentzel
> > > > > Software Developer
> > > > > Software As We Think - http://www.aswethink.com


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