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From "Wagoner, Mark" <MWago...@wildflavors.com>
Subject RE: Getting multiple instances of my servlet, although it doesn't implement SingleThreadModel
Date Fri, 01 Mar 2002 14:05:52 GMT
I don't think this is exactly true.  I have an app using the mediator design
pattern, in which there is only one servlet handling all requests (all of my
servlet mappings point to the same servlet).  It in turn hands the requests
off to various classes and/or JSP pages for actual processing.  Within this
servlet's init method is where I create my connection pool, configure Log4j
logging, etc.  I have never seen any case of init being called more than
once.

-----Original Message-----
From: Randy Layman [mailto:randy.layman@aswethink.com]
Sent: Friday, March 01, 2002 6:38 AM
To: 'Tomcat Users List'
Subject: RE: Getting multiple instances of my servlet, although it
doesn't implement SingleThreadModel



	Basically, Tomcat will create a separate instance for each unique
URL that the servlet responses to.

	(Technically, every time you define the servlet in the web.xml there
is a separate instance, and another instance is created when you use the
ServletInvoker to invoke the servlet by /servlet/className.)

	Randy


> -----Original Message-----
> From: Scott Shorter [mailto:shorter@caradas.com]
> Sent: Thursday, February 28, 2002 4:34 PM
> To: 'Tomcat Users List'
> Subject: Getting multiple instances of my servlet, although it doesn't
> implement SingleThreadModel
> 
> 
> All,
> 
> I have a servlet that loads on startup, per the <load-on-startup/> tag
> in web.xml.  It does *not* implement SingleThreadModel.
> 
> Unfortunately, two instances start up every time Tomcat starts - I can
> tell because I have a System.out.println call in init().  I need for
> there to be only one instance.
> 
> What other settings could be causing multiple instances to happen?
> 
> Thanks in advance,
> Scott
> 
> 
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