how to achieve this with s:iterator tag

[Bhaarat Sharma <bh...@gmail.com>]

I have the following code in jsp scriplet
<%
                ArrayList statisticsList = something.getStatistics();
                Iterator itr1 = statisticsList.iterator();

                while (itr1.hasNext())
                {
                 dvo3_a = (VerificationVO) itr1.next();
                 dvo3_b = (VerificationVO) itr1.next();
                 dvo3_c = (VerificationVO) itr1.next();
%>

then in the html I am using the three objects dvo3_a, dvo3_b and dvo3_c

while converting this to struts2 tags I've done this

<s:iterator value = "statistics">
...
...
....
</s:iterator>

how can i use the three objects as created above inside this struts2 html
tag? is there a way to get something AFTER the current element, while still
under the iterator tag?

this is that itr1.next() statement does. it moves the cursor one element
next.

Thanks!

Re: how to achieve this with s:iterator tag

[Wes Wannemacher <we...@wantii.com>]

On Saturday 25 April 2009 10:20:43 am Bhaarat Sharma wrote:
> is there no way to overcome this drawback?
>
> do i have to change the way I am getting my results from the DB to suit the
> iterator tags drawback in this case?

You call it a drawback, I call it a feature... I don't know if I'd want to 
have 3 'next()' calls for every one 'hasNext()' call. It might work now, but 
you're asking for some maintainer after you to curse your name. This is likely 
to introduce a problem later. 

I assume you're doing this to change the display logic, maybe making 3 columns 
instead of one, etc. I would look for a way to either 1) split into three 
lists that you can cleanly iterate over 2) try to use HTML/CSS/JS/Whatever to 
display what you want without introducing programming logic.

I would be interested to know why you want 3 VOs with each iteration, this 
would probably help us to give you better advice.

-Wes


>
> On Fri, Apr 24, 2009 at 5:25 PM, Bhaarat Sharma <bh...@gmail.com> wrote:
> > I have the following code in jsp scriplet
> > <%
> >                 ArrayList statisticsList = something.getStatistics();
> >                 Iterator itr1 = statisticsList.iterator();
> >
> >                 while (itr1.hasNext())
> >                 {
> >                  dvo3_a = (VerificationVO) itr1.next();
> >                  dvo3_b = (VerificationVO) itr1.next();
> >                  dvo3_c = (VerificationVO) itr1.next();
> > %>
> >
> > then in the html I am using the three objects dvo3_a, dvo3_b and dvo3_c
> >
> > while converting this to struts2 tags I've done this
> >
> > <s:iterator value = "statistics">
> > ...
> > ...
> > ....
> > </s:iterator>
> >
> > how can i use the three objects as created above inside this struts2 html
> > tag? is there a way to get something AFTER the current element, while
> > still under the iterator tag?
> >
> > this is that itr1.next() statement does. it moves the cursor one element
> > next.
> >
> > Thanks!

-- 

Wes Wannemacher
Author - Struts 2 In Practice 
Includes coverage of Struts 2.1, Spring, JPA, JQuery, Sitemesh and more
http://www.manning.com/wannemacher


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Re: how to achieve this with s:iterator tag

[Bhaarat Sharma <bh...@gmail.com>]

is there no way to overcome this drawback?

do i have to change the way I am getting my results from the DB to suit the
iterator tags drawback in this case?

On Fri, Apr 24, 2009 at 5:25 PM, Bhaarat Sharma <bh...@gmail.com> wrote:

> I have the following code in jsp scriplet
> <%
>                 ArrayList statisticsList = something.getStatistics();
>                 Iterator itr1 = statisticsList.iterator();
>
>                 while (itr1.hasNext())
>                 {
>                  dvo3_a = (VerificationVO) itr1.next();
>                  dvo3_b = (VerificationVO) itr1.next();
>                  dvo3_c = (VerificationVO) itr1.next();
> %>
>
> then in the html I am using the three objects dvo3_a, dvo3_b and dvo3_c
>
> while converting this to struts2 tags I've done this
>
> <s:iterator value = "statistics">
> ...
> ...
> ....
> </s:iterator>
>
> how can i use the three objects as created above inside this struts2 html
> tag? is there a way to get something AFTER the current element, while still
> under the iterator tag?
>
> this is that itr1.next() statement does. it moves the cursor one element
> next.
>
> Thanks!
>