Is ServletContext the same as session????
-----Original Message-----
From: Erik Morton [mailto:[EMAIL PROTECTED]]
Sent: Thursday, July 05, 2001 2:41 PM
To: [EMAIL PROTECTED]
Subject: Re: Best way to load up a connection pool?
So many ways.....
One way:
Have your connection manager class implement the Singleton design pattern.
If your not familiar with this design pattern, this means that there will
only be one instance of the class per JVM per class loader. You'll have a
public getInstance() method that will return a reference to the connection
manager - you'll call this method from your JSP.
Another way is to place the Connection manager in the ServletContext as an
attribute. You may want to set the attribute at the setup of the application
server (use <load-on-startup>1</load-on-startup> in the <servlet> element of
web.xml).........
All of your JSP will do something like:
ConnectionManager c =
(ConnectionManager)application.getAttribute("com.yoursite.ConnectionManager"
);
That's all I can think of now.
Rick Reumann wrote:
> I apologize if this is too basic a question for this list. If so you feel
free to flame me.
>
> First off, if the design issues are bad here to start with please tell me.
> Anyway say I have a connection pool ( ConnectionManater.java ). Then I
also have several different classes that have methods that do DB stuff and
they get their connections from this pool. Now I have JSPs for the front end
that call these methods.
>
> The question I have is there a "best" way to load up the ConnectionManager
for the application? I was just going to use a <jsp:useBean ..> tag on every
jsp page with the ConnectionManager having application. Is there a better
way to do it so that all of the methods called from the classes have access
to the connection pool? Since before any user can use the application they
will have to go to a login page I was thinking maybe there is something I
can do just once on the login page that will set up the ConnectionManager
and I then wouldn't need to have to include the useBean tag on the top of
every other page. Maybe I'm doing it the best way, but I'd like some
suggestions if there are other ways.
> Thanks so much,
> Rick
>
>
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--
Erik I Morton
Software Developer
------------------
CommerceHub
http://www.commercehub.com
518-886-0704
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Some relevant FAQs on JSP/Servlets can be found at:
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http://www.jguru.com/jguru/faq/faqpage.jsp?name=JSP
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