re: "..shouldn't use <%! %> tags to declare variables unless you know very
well what you're doing. But, alas, we see so many examples who do it wrong
(and people sometimes are upset if you tell them about it)"
A good question or two may be: Are there <any> uses for <%! %> variables ?
and if not, why were they included in the original JSP specifications doc ?
> -----Original Message-----
> From: A mailing list about Java Server Pages specification and reference
> [mailto:[EMAIL PROTECTED]]On Behalf Of Geert Van Damme
> Sent: Saturday, March 17, 2001 2:40 PM
> To: [EMAIL PROTECTED]
> Subject: Re: Spawning a thread
>
>
> I'm very sorry, but I really think you're interpreting this the other way
> around.
> isThreadSafe=true doesn't mean that JSP's are thread safe by default. au
> contraire,
> it means that they run in a multithreaded environment and are _assumed_ to
> be thread safe by the servlet engine. If they are not, you might specify
> isThreadSafe=false to make the servlet engine use the singleThreadModel. I
> really think you should never do this in a real application. It
> has too many
> performance problems.
>
> Most of the JSP pages are thread safe because they only use local
> variables.
> That's one of the reasons I mentioned it on this thread several times
> already that you shouldn't use <%! %> tags to declare variables unless you
> know very well what you're doing. But, alas, we see so many
> examples who do
> it wrong (and people sometimes are upset if you tell them about it).
> Anyway, if you just declare your variables locally in <% %> tags or in
> custom tags, you shouldn't worry too much about thread safety.
>
> But that has hardly anything to do with the original question.
> well, of course you can spawn a thread in a JSP
> <% new Thread(){
> public void run(){
> // your code
> }
> }.start();%>
> But it's cleaner to put that in a separate object, not in the
> page directly.
>
> Geert Van Damme
>
>
>
> > -----Original Message-----
> > From: A mailing list about Java Server Pages specification and reference
> > [mailto:[EMAIL PROTECTED]]On Behalf Of vikas m pawar
> > Sent: zaterdag 17 maart 2001 19:01
> > To: [EMAIL PROTECTED]
> > Subject: Re: Spawning a thread
> >
> >
> > JSP pages are by default thread safe(isThreadSafe=true)
> > If set to false, the JSP page uses the Single Thread Model.
> > Regards
> > Vikas
> > ___________________________________________________
> >
> >
> > To know recursion, you must first know recursion.
> >
> > _____________________________________________________
> > Chat with your friends as soon as they come online. Get Rediff Bol at
> > http://bol.rediff.com
> >
> > ==================================================================
> > =========
> > To unsubscribe: mailto [EMAIL PROTECTED] with body: "signoff
> > JSP-INTEREST".
> > For digest: mailto [EMAIL PROTECTED] with body: "set
> > JSP-INTEREST DIGEST".
> > Some relevant FAQs on JSP/Servlets can be found at:
> >
> > http://java.sun.com/products/jsp/faq.html
> > http://www.esperanto.org.nz/jsp/jspfaq.html
> > http://www.jguru.com/jguru/faq/faqpage.jsp?name=JSP
> > http://www.jguru.com/jguru/faq/faqpage.jsp?name=Servlets
> >
>
> ==================================================================
> =========
> To unsubscribe: mailto [EMAIL PROTECTED] with body: "signoff
> JSP-INTEREST".
> For digest: mailto [EMAIL PROTECTED] with body: "set
> JSP-INTEREST DIGEST".
> Some relevant FAQs on JSP/Servlets can be found at:
>
> http://java.sun.com/products/jsp/faq.html
> http://www.esperanto.org.nz/jsp/jspfaq.html
> http://www.jguru.com/jguru/faq/faqpage.jsp?name=JSP
> http://www.jguru.com/jguru/faq/faqpage.jsp?name=Servlets
>
===========================================================================
To unsubscribe: mailto [EMAIL PROTECTED] with body: "signoff JSP-INTEREST".
For digest: mailto [EMAIL PROTECTED] with body: "set JSP-INTEREST DIGEST".
Some relevant FAQs on JSP/Servlets can be found at:
http://java.sun.com/products/jsp/faq.html
http://www.esperanto.org.nz/jsp/jspfaq.html
http://www.jguru.com/jguru/faq/faqpage.jsp?name=JSP
http://www.jguru.com/jguru/faq/faqpage.jsp?name=Servlets
