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asp_web_howto thread: Referring to Instances of Server Objects
Message #1 by "Chadwick DeVoss" <chad@d...> on Mon, 28 Jan 2002 15:34:11
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If I create an object say:
set Telnet1 = Server.CreateObject("Dart.Telnet.1")
which creates an instance of Dart's telnet component I can then
Telnet1.Connect Hostname
Telnet1.Send Information
If I move to another page, however, I want to be able to refer to that
open connection. I can't just say Telnet1.Method, how do I refer to it?
Message #2 by "Alfredo Yong" <alfredo_yong_linux@h...> on Mon, 28 Jan 2002 10:51:38 -0500
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It dies when you change to other page. Anything dies when changing to other
page, except session variables. HTML is a stateless protocol, etc. Usually
you don't store objects in server variables: they scale bad.
- Alfredo
=================================================================
Alfredo_Yong@h...
Freelance Developer - Web systems
Expertise in ASP, DHTML, CSS, jscript, php, SQL & etc.
Yes! I'm available to accept any size contracts.
Chadwick DeVoss <chad@d...> escribió en el mensaje de noticias
140225@a..._web_howto...
>
> If I create an object say:
>
> set Telnet1 = Server.CreateObject("Dart.Telnet.1")
>
> which creates an instance of Dart's telnet component I can then
>
> Telnet1.Connect Hostname
> Telnet1.Send Information
>
> If I move to another page, however, I want to be able to refer to that
> open connection. I can't just say Telnet1.Method, how do I refer to it?
>
>
Message #3 by "Chadwick DeVoss" <chad@d...> on Mon, 28 Jan 2002 16:08:50
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Thanks Alfredo,
Is there a way to do what I'm trying to do?
Basically, I have a few telnet sessions that I want to keep open and
refer to, and use on ASP pages. I assume the same logic applies to
having connections to databases and keeping them open and referring to
them.
Thanks again,
Chad DeVoss
> It dies when you change to other page. Anything dies when changing to
other
> page, except session variables. HTML is a stateless protocol, etc.
Usually
> you don't store objects in server variables: they scale bad.
>
> - Alfredo
>
>
> =================================================================
> Alfredo_Yong@h...
> Freelance Developer - Web systems
> Expertise in ASP, DHTML, CSS, jscript, php, SQL & etc.
> Yes! I'm available to accept any size contracts.
>
> Chadwick DeVoss <chad@d...> escribió en el mensaje de noticias
> 140225@a..._web_howto...
> >
> > If I create an object say:
> >
> > set Telnet1 = Server.CreateObject("Dart.Telnet.1")
> >
> > which creates an instance of Dart's telnet component I can then
> >
> > Telnet1.Connect Hostname
> > Telnet1.Send Information
> >
> > If I move to another page, however, I want to be able to refer to that
> > open connection. I can't just say Telnet1.Method, how do I refer to
it?
> >
> >
>
>
Message #4 by "Alfredo Yong" <alfredo_yong_linux@h...> on Wed, 30 Jan 2002 12:39:43 -0500
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The problem here is that you will have a set of session variables for each
started session. So each time a new user start a session you will have a new
set of session variables. With the right number of started sessions, your
erver will be blocked.
If you can control how many sessions will be open at certain time, then you
could store the telnet objects in session variables. And destroy session
objects when you don't need them anymore.
Once i tryed to store anything in session variables, but my application
hanged when promoted to the server (in my PWS it worked!)
Good luck,
=================================================================
Alfredo_Yong@h...
Freelance Developer - Web systems
Expertise in ASP, DHTML, CSS, jscript, php, SQL & etc.
Yes! I'm available to accept any size contracts.
Chadwick DeVoss <chad@d...> escribió en el mensaje de noticias
140243@a..._web_howto...
>
> Thanks Alfredo,
>
> Is there a way to do what I'm trying to do?
> Basically, I have a few telnet sessions that I want to keep open and
> refer to, and use on ASP pages. I assume the same logic applies to
> having connections to databases and keeping them open and referring to
> them.
>
> Thanks again,
>
> Chad DeVoss
>
> > It dies when you change to other page. Anything dies when changing to
> other
> > page, except session variables. HTML is a stateless protocol, etc.
> Usually
> > you don't store objects in server variables: they scale bad.
> >
> > - Alfredo
> >
> >
> > =================================================================
> > Alfredo_Yong@h...
> > Freelance Developer - Web systems
> > Expertise in ASP, DHTML, CSS, jscript, php, SQL & etc.
> > Yes! I'm available to accept any size contracts.
> >
> > Chadwick DeVoss <chad@d...> escribió en el mensaje de noticias
> > 140225@a..._web_howto...
> > >
> > > If I create an object say:
> > >
> > > set Telnet1 = Server.CreateObject("Dart.Telnet.1")
> > >
> > > which creates an instance of Dart's telnet component I can then
> > >
> > > Telnet1.Connect Hostname
> > > Telnet1.Send Information
> > >
> > > If I move to another page, however, I want to be able to refer to that
> > > open connection. I can't just say Telnet1.Method, how do I refer to
> it?
> > >
> > >
> >
> >
>
>
Message #5 by "Ken Schaefer" <ken@a...> on Thu, 31 Jan 2002 11:10:10 +1100
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
: Chadwick DeVoss <chad@d...> escribió en el mensaje de noticias
: 140243@a..._web_howto...
: >
: > Thanks Alfredo,
: >
: > Is there a way to do what I'm trying to do?
: > Basically, I have a few telnet sessions that I want
: > to keep open and refer to, and use on ASP pages.
: > I assume the same logic applies to having connections
: > to databases and keeping them open and referring to
: > them.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Never apply this type of logic to database connections. Always open and
close your connections on every page. Recreate the result-set as required.
Keeping your connections open (and assigned to individual webusers) will
kill the scalability of your website very, very quickly.
Cheers
Ken
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