What Stephan says
the use of <jsp:getproperty & <jsp:setproperty
rather than request.getparameter...
clearer implication than the url or package name that u think he refers to
Amit
> -----Original Message-----
> From: Karl Roberts [SMTP:[EMAIL PROTECTED]]
> Sent: Tuesday, December 07, 1999 5:08 PM
> To: [EMAIL PROTECTED]
> Subject: Re: What's the use of [<jsp:useBean> tag]?
>
> Hi,
> I think that an unintentional clash of names is unlikely for the
> simple reason
> the to use a bean at all you are forced to use the full pakage name for
> the bean ,
> both in the <%@ page import="{package.class}" %> and the
> <jsp:useBean...> tag.
>
> Karl
>
> Stephen Summerfield wrote:
>
> > No one has mentioned the fact that when using the <jsp:useBean...> tags,
> the
> > properties of beans that have names that match CGI/form parameters, get
> > auto-magically set. Saves having to use request.getParameter() to get
> the
> > parameters' values, although I can imagine some subtle application bugs
> when
> > an unintentional clash of names occurs...
> >
> > Steve S
> >
> > > -----Original Message-----
> > > From: A mailing list about Java Server Pages specification
> > > and reference
> > > [mailto:[EMAIL PROTECTED]]On Behalf Of Matt Krevs
> > > Sent: 06 December 1999 22:11
> > > To: [EMAIL PROTECTED]
> > > Subject: Re: What's the use of [<jsp:useBean> tag]?
> > >
> > >
> > > Maybe one of the things we are all missing is that most of us
> > > on this forum
> > > (I assume) are programmers and are used to seeing java code
> > > embedded in
> > > things. Consider for a second that one major reason JSP was
> > > developed was to
> > > separate presentation from business logic. One advantage of
> > > the usebean tag
> > > provides a HTMLish tag that non-programmers can more easily
> > > use in their
> > > HTML.
> > >
> > > Granted it may be fairly simple for Java programmers to simply use
> > > <% MyBean mybean = new MyBean() ;
> > > mybean.setSomeVar( "somevalue" ) ; %>
> > >
> > > instead of
> > >
> > > <jsp:useBean...>?
> > >
> > > but the useBean tag is much easier to use for non-programmers.
> > >
> > > I guess another possibly more important reason to use the
> > > useBean tag is
> > > that it hides the specific implementation of 'bean' scoping from the
> > > programmer. What happens if suddenly, behind the scenes, the way that
> > > application scope beans are stored/retrieved is changed in a
> > > future JSP
> > > release or implementation? If you have hardcoded java code in
> > > your JSP pages
> > > (eg getServletContext().setAttribute( key, value ) ) then
> > > chances are you
> > > have a very large search/replace task on your hands. If you
> > > instead used the
> > > 'usebean' tag then you dont have anything to worry about.
> >
> >
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> > FAQs on JSP can be found at:
> > http://java.sun.com/products/jsp/faq.html
> > http://www.esperanto.org.nz/jsp/jspfaq.html
>
> ==========================================================================
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> To unsubscribe: mailto [EMAIL PROTECTED] with body: "signoff
> JSP-INTEREST".
> FAQs on JSP can be found at:
> http://java.sun.com/products/jsp/faq.html
> http://www.esperanto.org.nz/jsp/jspfaq.html
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