I guess what I really need to find out here, is this: Is this "problem"
really a problem, or is this the WAY IT IS SUPPOSED TO BE? Does anybody
know??? This application will be deployed on IBM WebSphere eventually,
would I expect the same behavior there?
Mike
> -----Original Message-----
> From: Dmitri Colebatch [SMTP:[EMAIL PROTECTED]]
> Sent: Friday, June 29, 2001 2:27 AM
> To: [EMAIL PROTECTED]
> Subject: Re: JSP / JavaBean problem
>
> Mike,
>
> Yeah - I see the problem. I reckon the easiest way would be to make a
> clearProperty tag that does it for you, or maybe a custom setProperty if
> you
> need it to work that way. Given that you want to set all the properties
> at
> once, propably easier to do the latter... although not a nice solution -
> sorry I'm out of ideas!
>
> cheesr
> dim
>
> On Fri, 29 Jun 2001 14:38, you wrote:
> > Thanks "dim" for the interesting web link. I think I'll definitely
> browse
> > it in depth at a later point. For this web application that I am
> working
> > on we have most of the architecture designed and built, and are just
> > running into this minor glitch when implementing some of our JSP pages.
> It
> > unfortunately has big impacts in JSP coding style. Let me explain:
> >
> > Supposing I have the following bean declared.
> >
> > <jsp:useBean id="myBean" class="com.cool.MyBean" scope="session" />
> >
> > If I have ten fields in my form that I want to put into this bean, I
> would
> > like to code the following:
> >
> > <jsp:setProperty name="myBean" property="*"/>
> >
> > The problem is that if "fieldOne" is left blank value will NOT be "set"
> > using the setFieldOne method on my JavaBean. However, if I code the
> > following:
> >
> > <%
> > myBean.setFieldOne(request.getParameter("fieldOne"));
> > myBean.setFieldTwo(request.getParameter("fieldTwo"));
> > myBean.setFieldThree(request.getParameter("fieldThree"));
> > .
> > . You get the idea
> > .
> > %>
> >
> > This works fine, it is just much more tedius, especially on forms with
> many
> > fields.
> >
> > Also, as a side note, this does not work either.
> >
> > <jsp:setProperty name="myBean" property="fieldOne" VALUE="" />
> >
> > Thanks!
> > Mike
> >
> > -----Original Message-----
> > From: Dmitri Colebatch [mailto:[EMAIL PROTECTED]]
> > Sent: Thursday, June 28, 2001 11:36 PM
> > To: [EMAIL PROTECTED]
> > Subject: Re: JSP / JavaBean problem
> >
> >
> > firstly - right list. unfortunately I dont have a direct answer for
> you,
> > although do see what you're asking. what might help you though is
> > something
> >
> > like struts (http://jakarta.apache.org/struts). it handles the sorts of
> > issues that are (by the sounds of it) at the base of your problem
> >
> > cheesr
> > dim
> >
> > On Fri, 29 Jun 2001 14:10, you wrote:
> > > Hi, I'm new to this list, and hope this is the appropriate forum.
> Kick
> > > me over to a developer forum if not...
> > >
> > > I am developing JSPs with JavaBeans and have run into an issue with
> >
> > "blank"
> >
> > > input fields on the form. An empty string, "", is NOT passed to the
> >
> > setter
> >
> > > method on my beans. I have researched the source code in
> > > JspRuntimeLibrary.java and found the introspect (Tomcat 3.1) /
> > > introspectHelper (Tomcat 3.2.1) method intentionally excludes
> parameters
> > > that have a NULL or "" value - of course NULL could never happen
> because
> >
> > of
> >
> > > the flow of the code, but never mind that.
> > >
> > > I guess my question is this. Is this correct functionality. I have
> read
> > > the JSP 1.1 specification on the topic of the setProperty tag, and it
> is
> > > NOT specific regarding this matter. It is a huge problem for me
> because
> > > I have beans that have a session scope and a particular property of
> the
> > > bean may be "Fred" but if I blank out the related input field it
> doesn't
> > > overwrite the value in the bean when I submit the form. Hope this
> makes
> > > sense.
> > >
> > > Any and all help would be appreciated.
> > >
> > > Thanks!
> > >
> > > Michael W. Housman Jr.
> > > Optimal Systems Design, Inc.
> > > Consulting at Wells Fargo Services Company
> > > Phone: 612.341.9784
> > > Cell: 612.386.6785
> > > Office: 763.537.2631
