Sort of...of course. Current JSP doesn't support fully generic beans :(
-tg
----- Original Message -----
From: DAVE TOWNSEND <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Monday, September 13, 1999 7:06 AM
Subject: Re: Why use JavaBeans?
> There is, in my opinion, very little difference between JavaBeans
> and Class objects. JavaBeans are just Class objects written in a standard
> way. It is this standardization that makes them good. In my experience,
most
> people, when writing code name methods and fields in a way that makes
sense
> to them, not necessarily others. Using a standard naming convention means
> that other programmer will know roughly what methods will be called and
how
> to use the bean correctly. Plus of course beans can be used in a GUI as
well
> as a non-graphical app.
>
> Dave
>
>
> > -----Original Message-----
> > From: Esposito, Francis (Exchange) [mailto:[EMAIL PROTECTED]]
> > Sent: 13 September 1999 14:44
> > To: [EMAIL PROTECTED]
> > Subject: Re: Why use JavaBeans?
> >
> >
> > I agree with encapsulating the business logic into reusable
> > components, but
> > I am also wrestling how to do it.
> >
> > My thoughts are to use class packages and EJBs for business
> > objects. Class
> > packages being used locally on the web server where objects
> > are of lighter
> > weight and EJBs for more complex objects, where I can gain
> > some benefits,
> > like caching, from the EJB container. Servlets/JSP would be used for
> > building the web application with all presentation code being
> > handled in
> > JSP.
> >
> > The trick I see here is getting the business level reuse while keeping
> > overhead at an acceptable level.
> >
> > One question I have, is why use a JavaBean over a class object?
> >
> > > -----Original Message-----
> > > From: DAVE TOWNSEND [SMTP:[EMAIL PROTECTED]]
> > > Sent: Monday, September 13, 1999 5:35 AM
> > > To: [EMAIL PROTECTED]
> > > Subject: Re: Why use JavaBeans?
> > >
> > > JavaBeans are reuseable components. That seems a good enough
> > > reason
> > > as any to me. For example, lets say you have a server with
> > a database
> > > running on it, with various information about customers.
> > You have already
> > > written an application in Java that uses a bean to query
> > the database and
> > > provide some information. Suddenly, your specification
> > changes and it
> > > needs
> > > to be accessible from the web. With JSP, you can use the
> > same bean as the
> > > application does to access the database, usually with
> > little or no code
> > > change. And vice versa for converting a web-based app to a
> > standard app.
> > > Converting the standard app into a servlet would
> > usually take
> > > longer. Ok, so most of the code can be reused, you still
> > need to copy and
> > > paste it into the right places in the servlet, perform
> > testing to ensure
> > > that everything is done right, etc. With beans, you know
> > that the bean
> > > works
> > > and will work whether you call it from a JSP, or from a standard
> > > application.
> > >
> > > Dave
> > >
> > >
> > > > -----Original Message-----
> > > > From: O'Keeffe Patrick [mailto:Patrick_O'[EMAIL PROTECTED]]
> > > > Sent: 13 September 1999 10:16
> > > > To: [EMAIL PROTECTED]
> > > > Subject: Why use JavaBeans?
> > > >
> > > >
> > > > Hi,
> > > >
> > > > I'm an ASP developer who is trying to put forward a case
> > for using the
> > > > JSP/Servlet/JavaBean approach. I'd be very grateful if
> > > > someone could explain the
> > > > following to me:
> > > >
> > > > What is the advantage of using JavaBeans with servlets and
> > > > JSPs when the same
> > > > result could be obtained by chaining servlets and JSPs? Both
> > > > approaches separate
> > > > content from presentation. Granted, the latter places more
> > > > strain on the web
> > > > service, but is there some other argument for involving JavaBeans?
> > > >
> > > > This might be a basic question, but any elaboration would
> > be greatly
> > > > appreciated.
> > > >
> > > > Many thanks,
> > > >
> > > > Patrick O'Keeffe
> > > > Consultant
> > >
> > >
>
>
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