one context per server

[Gabriel Mihalache <ga...@fx.ro>]

is there a way to share a single JNDI context for all webapps?
can this context be accesible thru getServletContext() ?!

=====================================
Oh, no! Not me! I never lost control /
You're face to face /
With the man who sold the world - David Bowie

Re: is there only static objects in Tomcat?

["Craig R. McClanahan" <cr...@apache.org>]

On Tue, 18 Jun 2002, Ray Letts wrote:

> Date: Tue, 18 Jun 2002 15:00:23 -0700
> From: Ray Letts <rl...@etc.bc.ca>
> Reply-To: Tomcat Users List <to...@jakarta.apache.org>,
>      rletts@etc.bc.ca
> To: Tomcat Users List <to...@jakarta.apache.org>
> Subject: is there only static objects in Tomcat?
>
>
> I read a previous thread where someone stated that: "you know that
> Tomcat creates all objects as static?"
>

There is no such thing as "creating an object as static".  You might be
confusing this with creating a single instance of a servlet, which is
shared across all requests to that servlet.

Fundamentally, this means you cannot use static or instance variables in
our servlet class to maintain per-request state information.  Use local
variables in our methods, or pass things around as request attributes, in
order to deal with this.

Craig


--
To unsubscribe, e-mail:   <ma...@jakarta.apache.org>
For additional commands, e-mail: <ma...@jakarta.apache.org>

is there only static objects in Tomcat?

[Ray Letts <rl...@etc.bc.ca>]

I read a previous thread where someone stated that: "you know that 
Tomcat creates all objects as static?"

So then, if user A contacts a servlet via Tomcat that creates a person 
object and stuffs some personal info in it

and user B later contacts the same servlet via Tomcat that creates a 
person object and stuffs some personal info in it

that the person object is only created ONCE
and
that the personal info from user A is overwritten by user B's request?

that is my understanding of STATIC. Is this how Tomcat implements object 
creation? I guess it makes sense in the stateless web ....

thanks in advance

Ray


--
To unsubscribe, e-mail:   <ma...@jakarta.apache.org>
For additional commands, e-mail: <ma...@jakarta.apache.org>

Re: one context per server

["Craig R. McClanahan" <cr...@apache.org>]

On Wed, 19 Jun 2002, Gabriel Mihalache wrote:

> Date: Wed, 19 Jun 2002 00:52:30 +0300
> From: Gabriel Mihalache <ga...@fx.ro>
> Reply-To: Tomcat Users List <to...@jakarta.apache.org>
> To: Tomcat Users List <to...@jakarta.apache.org>
> Subject: one context per server
>
> is there a way to share a single JNDI context for all webapps?

Not with the standard implementation -- the JNDI context that Tomcat
provides is populated with the resources for that webapp, which can
potentially all be different.

With Tomcat 4.1.x, you can pretty easily share JNDI-accessed resources by
putting them in the <GlobalJNDIResources> element of server.xml, and
creating a <ResourceLink> element for each webapp -- so, for example, you
could declare a data source once and use it in multiple apps.

> can this context be accesible thru getServletContext() ?!

Nothing stops you from storing the JNDI initial context you get back as a
servlet context attribute, but it seems redundant to me -- the thing is
already accessible from anywhere in your code.

Craig


--
To unsubscribe, e-mail:   <ma...@jakarta.apache.org>
For additional commands, e-mail: <ma...@jakarta.apache.org>